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Hide/show columns: Water System No. | Water System Name |
Type | Distribution System Class | Max Treatment Plant Class |
Principal County Served | Primary Source Water Type |
| Water System No. | Water System Name | Type | Distribution System Class | Max Treatment Plant Class | Principal County Served | Primary Source Water Type |
|---|---|---|---|---|---|---|
| Water System No. | Water System Name | Type | Distribution System Class | Max Treatment Plant Class | Principal County Served | Primary Source Water Type |
| CA1900045 | 1000 TRAILS / SOLEDAD CANYON PRESERVE | NC | D1 | T3 | LOS ANGELES | GW |
| CA2800014 | 11:11 WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA3901031 | 132 INVESTMENTS WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4000725 | 141 SUBURBAN ROAD WATER SUPPLY | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA1503684 | 148 EAST WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA1600293 | 15TH AVENUE | C | D1 | T1 | KINGS | GW |
| CA3500557 | 33RD DISTRICT AGRICULTURAL ASSOCIATION | NC | NR | There are no treatment plants | SAN BENITO | GW |
| CA5000258 | 4937 BECKWITH WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5500120 | 49ER TRAILER RANCH | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5000082 | 4N MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2900115 | 5 MILE HOUSE | NC | NR | T1 | NEVADA | GW |
| CA5000573 | 5033 PENTECOST | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1502744 | 60TH STREET ASSOC. WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA3400358 | 6200 FRANKLIN, LLC (SWS) | NTNC | D1 | T2 | SACRAMENTO | GW |
| CA4901394 | 7180 HWY 116 LLC | NC | NR | T1 | SONOMA | GW |
| CA3902216 | 88 MARKET & GRILL | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3601189 | 8986 DEEP CREEK ROAD | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5400679 | 99 PALMS INN AND SUITES | NC | NR | There are no treatment plants | TULARE | GW |
| CA3902172 | A SAMBADO & SON 39-321 | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1200776 | A W WAY - HUMBOLDT CO. PARKS | NC | NR | There are no treatment plants | HUMBOLDT | GW |
| CA1500466 | A.F.P. MUTUAL WATER COMPANY | C | D1 | T1 | KERN | GW |
| CA3900606 | A1 WINSTONS MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4200969 | AAA KINDNESS CARE HOME | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5200559 | ABBEY OF NEW CLAIRVAUX | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA1400020 | ABERDEEN WATER SYSTEM | C | D1 | There are no treatment plants | INYO | GW |
| CA3901480 | ABF FREIGHT WATER SYSTEM | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA4300792 | ABORN HEIGHTS WATER MUTUAL ASSOCIATION | C | D1 | TD | SANTA CLARA | GW |
| CA3601171 | ABRAHAM MAIDA WATER SYSTEM | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4700542 | ABRAMS LAKE MOBILE ESTATES | C | D1 | TD | SISKIYOU | GW |
| CA3901303 | ACAMPO WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5400538 | ACCELERATED CHARTER HIGH SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA5301013 | ACKERMAN CAMPGROUND | NC | NR | There are no treatment plants | TRINITY | GW |
| CA1900904 | ACTON CONSERVATION CAMP #11 | NTNC | D1 | T1 | LOS ANGELES | GU |
| CA1900894 | ACTON FOUR SQUARE CHURCH | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1900092 | ACTON LA NORTH KOA | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1907004 | ACTON-AGUA DULCE LDS CHURCH | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4000839 | ADA'S LODGES | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4901129 | ADAIR VIANSA, LLC | NTNC | D1 | There are no treatment plants | SONOMA | GW |
| CA1000650 | ADAM'S MARKET | NC | NR | TD | FRESNO | GW |
| CA0605012 | ADAM'S VEGETABLE OILS | NTNC | D1 | There are no treatment plants | COLUSA | GW |
| CA4000856 | ADELAIDA VINEYARDS & WINERY | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3690005 | ADELANTO PUBLIC UTILITY AUTHORITY | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3610001 | ADELANTO, CITY OF | C | D3 | T2 | SAN BERNARDINO | GW |
| CA3400429 | ADESA OF SACRAMENTO | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2500565 | ADIN SUPPLY CO. | NC | NR | There are no treatment plants | MODOC | GW |
| CA0605004 | ADM RICE INC. | NTNC | D1 | T2 | COLUSA | GW |
| CA4901214 | ADOBE CHRISTIAN CHURCH | NTNC | D1 | T1 | SONOMA | GW |
| CA2800625 | ADVENTIST HEALTH - ST. HELENA HOSPITAL | C | D1 | T1 | NAPA | GW |
| CA2701187 | AERA ENERGY LLC WS | NTNC | D1 | TD | MONTEREY | GW |
| CA1500495 | AERA ENERGY-LLC | NTNC | D1 | TD | KERN | GW |
| CA1500405 | AERIAL ACRES WATER COMPANY, INC. | C | D1 | T2 | KERN | GW |
| CA3600797 | AERONAUTICAL SYSTEMS | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000744 | AFUERA DE CHORRO WATER COMPANY | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1500543 | AGAPE MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA3110012 | AGATE BAY WATER COMPANY | C | D2 | T2 | PLACER | SW |
| CA1500518 | AGBAYANI VILLAGE WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA2000380 | AGNEW MEADOWS CAMPGROUND | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000866 | AGRILAND FARMING | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3700846 | AGUA CALIENTE COUNTY PARK | NC | NR | TD | SAN DIEGO | GW |
| CA1900768 | AGUA DULCE WATER SYSTEM | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1909646 | AGUA DULCE WINERY | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1900061 | AGUA DULCE WOMEN'S CLUB | NC | D2 | There are no treatment plants | LOS ANGELES | GW |
| CA3301141 | AGUANGA MARKET WATER SYSTEM | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2000537 | AHWAHNEE QUIK MART | NC | NR | There are no treatment plants | MADERA | GW |
| CA4500230 | AIRPORT COMMERCIAL PLAZA | NTNC | D1 | TD | SHASTA | GW |
| CA4500274 | AIRPORT INDUSTRIAL PARK | NTNC | D1 | TD | SHASTA | GW |
| CA4500333 | AIRPORT PLANET WATER | NTNC | NR | TD | SHASTA | GW |
| CA1502697 | AIRSTREAMS RENEWABLES | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA5400810 | AKAL TRAVEL PLAZA | NC | D1 | T2 | TULARE | GW |
| CA3400100 | ALAMAR MARINA | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA0105020 | ALAMEDA COUNTY FAIRGROUNDS | NTNC | D1 | T1 | ALAMEDA | GW |
| CA0110001 | ALAMEDA COUNTY WATER DISTRICT | C | D5 | T5 | ALAMEDA | SW |
| CA0110016 | ALAMEDA POINT | C | D1 | There are no treatment plants | ALAMEDA | SWP |
| CA3301989 | ALAMO DISCOUNT STORE | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2702572 | ALBA WS | NC | NR | TD | MONTEREY | GW |
| CA2300512 | ALBION FIELD STATION | NC | NR | T2 | MENDOCINO | GU |
| CA2300502 | ALBION MUTUAL WATER COMPANY | C | D1 | TD | MENDOCINO | GW |
| CA2300619 | ALBION RIVER CAMPGROUND | NC | NR | T2 | MENDOCINO | GU |
| CA2300811 | ALBION RIVER INN | NC | D1 | TD | MENDOCINO | GW |
| CA2710001 | ALCO WATER SERVICE | C | D3 | TD | MONTEREY | GW |
| CA5800009 | ALCOUFFE COMMUNITY CENTER | NC | NR | There are no treatment plants | YUBA | GW |
| CA0900551 | ALDER INN TAHOE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4300516 | ALDERCROFT HEIGHTS COUNTY WATER DISTRICT | C | D1 | T2 | SANTA CLARA | SW |
| CA1200501 | ALDERPOINT COUNTY WATER | C | D1 | T2 | HUMBOLDT | SW |
| CA4200731 | ALEGRIA DOMESTIC MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA4900646 | ALEXANDER VALLEY ACRES WATER COMPANY | C | D1 | There are no treatment plants | SONOMA | GW |
| CA4900107 | ALEXANDER VALLEY STORE & BAR | NC | NR | TD | SONOMA | GW |
| CA4900704 | ALEXANDER VALLEY UNION SCHOOL DISTRICT | NTNC | D1 | TD | SONOMA | GW |
| CA3303014 | ALHATTI CHRISTIAN MOUNTAIN RES | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA5403144 | ALI MUTUAL WATER CO | C | D1 | TD | TULARE | GW |
| CA4400757 | ALIANZA CHARTER SCHOOL/WCSA | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2702519 | ALISAL RD WS #3 - 2262 ALISAL RD | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA0900219 | ALL OUTDOORS ADVENTURE TRIPS | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2702255 | ALL SAINTS CAMPGROUND WS | NC | NR | TD | MONTEREY | GW |
| CA0707800 | ALL STAR ACADEMY OF DANVILLE | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA4400692 | ALLAN LANE WATER ASSOCIATION | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4600012 | ALLEGHANY COUNTY W.D. | C | D1 | There are no treatment plants | SIERRA | GW |
| CA1500483 | ALLEN ROAD MUTUAL WATER SYSTEM | C | D1 | TD | KERN | GW |
| CA5400544 | ALLENSWORTH CSD | C | D1 | T1 | TULARE | GW |
| CA4900943 | ALLIANCE REDWOODS CONFERENCE GROUNDS | C | D1 | T1 | SONOMA | GU |
| CA1300668 | ALLIED WASTE OF IMPERIAL VALLEY | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1000537 | ALLUVIAL FUEL INC. | NC | NR | TD | FRESNO | GW |
| CA2000641 | ALMADEN - MADERA | NTNC | D1 | TD | MADERA | GW |
| CA3200139 | ALMANOR HEIGHTS MWC | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA4000631 | ALMIRA WATER ASSOCIATION | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA0400040 | ALMOND GROVE MOBILE PARK | C | D1 | There are no treatment plants | BUTTE | GW |
| CA3900517 | ALMOND PARK WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5410050 | ALPAUGH COMMUNITY SERVICES DISTRICT | C | D2 | T3 | TULARE | GW |
| CA2801012 | ALPHA OMEGA WINERY | NTNC | NR | There are no treatment plants | NAPA | GW |
| CA5500041 | ALPINE ACRES MUTUAL WATER CO | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA3705071 | ALPINE AMERICAN LEGION | NC | D1 | TD | SAN DIEGO | GW |
| CA0205425 | ALPINE CO COMMUNITY DEVELOPMENT | NTNC | D1 | There are no treatment plants | ALPINE | GW |
| CA0202550 | ALPINE COUNTY HEALTH AND HUMAN SERVICES | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202599 | ALPINE EARLY LEARNING CENTER | NTNC | D1 | There are no treatment plants | ALPINE | GW |
| CA0900576 | ALPINE INN & SPA | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3100041 | ALPINE MEADOWS PROPERTY OWNERS ASSO | C | D1 | T3 | PLACER | SW |
| CA3901080 | ALPINE MEATS INC | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA3701988 | ALPINE OAKS ESTATES LLC | C | D1 | TD | SAN DIEGO | GW |
| CA3600602 | ALPINE RETREAT AND CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3110029 | ALPINE SPRINGS COUNTY WATER DISTRICT | C | D1 | TD | PLACER | GW |
| CA1900942 | ALPINE SPRINGS MOBILE HOME PARK | C | D1 | T2 | LOS ANGELES | GW |
| CA5301006 | ALPINE VIEW CAMPGROUND | NC | NR | There are no treatment plants | TRINITY | GW |
| CA3301491 | ALPINE VILLAGE | C | D1 | TD | RIVERSIDE | GW |
| CA5400708 | ALPINE VILLAGE WATER COMPANY | NC | NR | There are no treatment plants | TULARE | GW |
| CA3610002 | ALPINE WATER USERS ASSOCIATION | C | D2 | T2 | SAN BERNARDINO | SWP |
| CA1000180 | ALTA ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1500209 | ALTA SIERRA MUTUAL WATER CO. | C | D1 | TD | KERN | GW |
| CA1503662 | ALTA WIND PROJECT O&M FACILITY WATER SYS | NTNC | D1 | TD | KERN | GW |
| CA2700856 | ALTMAN PLANTS WS #01 - SPENCE 20460 | NTNC | D1 | T2 | MONTEREY | GW |
| CA2702616 | ALTMAN PLANTS WS #02 - SPENCE 20140 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700850 | ALTMAN PLANTS WS #03 - ESPINOSA 303 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700853 | ALTMAN PLANTS WS #04 -ESP 420 (PREV CS1) | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702482 | ALTMAN PLANTS WS #05 -ESP 325 (PREV CS2) | NTNC | D1 | T2 | MONTEREY | GW |
| CA5601106 | ALTURAS FILLMORE MHP | C | D1 | TD | VENTURA | GW |
| CA2706552 | ALVAREZ BROTHERS WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA2000598 | ALVIEW SCHOOL | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA1000181 | ALVINA SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA0300095 | AMADOR FLOWER FARM | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0300028 | AMADOR HARVEST INN | NC | NR | TD | AMADOR | GW |
| CA1910002 | AMARILLO MUTUAL WATER COMPANY | C | D2 | T2 | LOS ANGELES | GW |
| CA4500200 | AMBERWOOD ESTATES, LLC | C | D1 | TD | SHASTA | GW |
| CA2810005 | AMERICAN CANYON, CITY OF | C | D3 | T3 | NAPA | SW |
| CA2702679 | AMERICAN LEGION #593 WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA0500090 | AMERICAN LEGION POST #376 | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3600510 | AMERICAN LEGION POST 751 | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0900629 | AMERICAN LEGION TRACT RESORT ASSOC | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3400278 | AMERICAN RIVER COLLEGE | NTNC | D2 | There are no treatment plants | SACRAMENTO | GW |
| CA1000204 | AMERICAN UNION SCHOOL | NTNC | D1 | T1 | FRESNO | GW |
| CA3210004 | AMERICAN VALLEY CSD | C | D2 | There are no treatment plants | PLUMAS | GW |
| CA3290002 | AMERICAN VALLEY CSD WWTP | NP | There are no treatment plants | PLUMAS | ||
| CA4210700 | AMERICAN WATER O&M, LLC - VSFB | C | D4 | T2 | SANTA BARBARA | SWP |
| CA5700504 | AMERICAS BEST VALUE INN | NC | NR | There are no treatment plants | YOLO | GW |
| CA3301990 | AMEZCUA - GARCIA WATER | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA4901334 | AMISTA VINEYARDS | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901361 | ANABA WINERY | NC | NR | TD | SONOMA | GW |
| CA2901934 | ANANDA RETREAT CENTER | NC | NR | T1 | NEVADA | GW |
| CA2900562 | ANANDA VILLAGE | C | D1 | T1 | NEVADA | GW |
| CA1900744 | ANCHOR RETREAT CENTER | NC | D1 | T1 | LOS ANGELES | GW |
| CA4300610 | ANCHORPOINT CHRISTIAN SCHOOL | NTNC | D1 | T1 | SANTA CLARA | GW |
| CA1206011 | ANCIENT REDWOODS RESORT | NC | D2 | TD | HUMBOLDT | GW |
| CA5200810 | ANDERSEN AND SONS SHELLING | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4500098 | ANDERSON MOBILE HOME PARK | C | D1 | TD | SHASTA | GW |
| CA4500302 | ANDERSON MOOSE LODGE # 509 | NC | NR | TD | SHASTA | GW |
| CA1700502 | ANDERSON SPRINGS CSD | C | D1 | TD | LAKE | GW |
| CA4500217 | ANDERSON TUCKER OAKS GOLF | NC | NR | TD | SHASTA | GW |
| CA4500041 | ANDERSON UNION HIGH SCHOOL | NTNC | D1 | TD | SHASTA | GW |
| CA2300901 | ANDERSON VALLEY BREWING COMPANY | NTNC | D1 | TD | MENDOCINO | GW |
| CA2300770 | ANDERSON VALLEY ELEMENTARY SCHOOL | NTNC | D1 | T1 | MENDOCINO | GW |
| CA2300951 | ANDERSON VALLEY HEALTH CENTER | NC | D1 | TD | MENDOCINO | GW |
| CA2300764 | ANDERSON VALLEY HIGH SCHOOL | NTNC | D1 | TD | MENDOCINO | GW |
| CA0300096 | ANDIS WINES | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4500011 | ANDREINI BUSINESS PARK WATER SYSTEM | NTNC | D1 | There are no treatment plants | SHASTA | GW |
| CA4200931 | ANDREW MURRAY VINEYARD | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4901118 | ANDY'S PRODUCE MARKET, INC. | NTNC | D1 | TD | SONOMA | GW |
| CA1900552 | ANGELES CREST CHRISTIAN CAMP | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1900761 | ANGELES SHOOTING RANGES | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1200823 | ANGELINA | NC | NR | TD | HUMBOLDT | GW |
| CA4300578 | ANGELO LANE WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA0500082 | ANGELS CAMP RV/CAMPING RESORT | C | NR | There are no treatment plants | CALAVERAS | GW |
| CA0590003 | ANGELS, CITY OF | NP | There are no treatment plants | CALAVERAS | ||
| CA0510003 | ANGELS, CITY OF | C | D2 | T3 | CALAVERAS | SW |
| CA0707501 | ANGLER S RANCH #3 | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA0707569 | ANGLERS SUBDIVISION 4 | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA0900515 | ANGORA LAKES RESORT | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2900644 | ANIMAL PLACE | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3399107 | ANNENBERG RETREAT AT SUNNYLANDS - RECL | NP | There are no treatment plants | RIVERSIDE | ||
| CA2600529 | ANNETT'S MONO VILLAGE | NC | NR | T2 | MONO | SW |
| CA5200521 | ANTELOPE CREEK MHP | C | D1 | TD | TEHAMA | GW |
| CA3107329 | ANTELOPE OAKS WATER SYSTEM | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA1900794 | ANTELOPE PARK MUTUAL WATER COMPANY | C | D1 | T1 | LOS ANGELES | GW |
| CA3105886 | ANTELOPE SPRINGS | NC | NR | There are no treatment plants | PLACER | GW |
| CA1909647 | ANTELOPE VALLEY AIRPORT EXPRESS | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1510053 | ANTELOPE VALLEY E KERN WTR AGY-ROSAMOND | C | D3 | T4 | KERN | SW |
| CA1910045 | ANTELOPE VALLEY EAST KERN WATER AGENCY | C | D4 | T5 | LOS ANGELES | SW |
| CA1910301 | ANTELOPE VALLEY INDIAN MUSEUM STATE PARK | NC | D1 | T1 | LOS ANGELES | GW |
| CA1500485 | ANTELOPE VALLEY MOBILE ESTATES | C | D1 | There are no treatment plants | KERN | GW |
| CA1910303 | ANTELOPE VALLEY POPPY RESERVE STATE PARK | NC | D1 | T2 | LOS ANGELES | SW |
| CA1503576 | ANTHONY VINEYARDS WATER SYSTEM | NC | NR | TD | KERN | GW |
| CA2800074 | ANTINORI CALIFORNIA | NC | NR | There are no treatment plants | NAPA | GW |
| CA4500053 | ANTLERS RESORT & RV PARK | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500215 | ANTLERS SHELL / SUBWAY | NC | NR | TD | SHASTA | GW |
| CA5201140 | ANTOINETTE MUTUAL WATER CO | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA3301113 | ANZA BAPTIST CHURCH | NC | D1 | T1 | RIVERSIDE | GW |
| CA3710305 | ANZA BORREGO SP - HORSE CAMP | NC | NR | TD | SAN DIEGO | GW |
| CA3710302 | ANZA BORREGO SP - PALM CANYON | NC | NR | TD | SAN DIEGO | GW |
| CA3710306 | ANZA BORREGO SP - TAMARISK GROVE | NC | NR | TD | SAN DIEGO | GW |
| CA3710320 | ANZA BORREGO SP - VALLECITO | NC | NR | TD | SAN DIEGO | GW |
| CA3301797 | ANZA COMMUNITY HALL | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301180 | ANZA MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3302102 | ANZA PETROLEUM INC | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301018 | ANZA PINES MOBILE HOME PARK | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3301355 | ANZA RV RESORT | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA4000834 | ANZA VINEYARD ESTATES MUTUAL WATER CO | C | D1 | T2 | SAN LUIS OBISPO | GW |
| CA3500905 | ANZAR HIGH SCHOOL | NTNC | D1 | There are no treatment plants | SAN BENITO | GW |
| CA4901455 | APERTURE CELLARS | NC | NR | T1 | SONOMA | GW |
| CA2400153 | APOSTOLIC TABERNACLE | NC | NR | There are no treatment plants | MERCED | GW |
| CA2701034 | APPLE AVE WS #02 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3301991 | APPLE MARKET TWO | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3601027 | APPLE VALLEY FAITH CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5500371 | APPLE VALLEY FARMS | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA3600008 | APPLE VALLEY FOOTHILL CWD | C | D1 | TD | SAN BERNARDINO | GW |
| CA3600009 | APPLE VALLEY HEIGHTS CWD | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600453 | APPLE VALLEY HORSEMAN CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600012 | APPLE VALLEY VIEW MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600400 | APPLE VALLEY VILLAGE MHE | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3700913 | APPLE WATER IS GOOD | NC | D1 | TD | SAN DIEGO | GW |
| CA3100102 | APPLEGATE MOTEL WATER SYSTEM | NC | NR | There are no treatment plants | PLACER | GW |
| CA3107069 | APPLEGATE PARK | NC | NR | There are no treatment plants | PLACER | GW |
| CA3103195 | APPLEGATE STATION | NC | NR | There are no treatment plants | PLACER | GW |
| CA3601157 | APPLEWHITE CAMPGROUND | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2702026 | APRICOT LN WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3400470 | APRO 1966 (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5403022 | APTCO LLC | NTNC | D1 | T2 | TULARE | GW |
| CA4400750 | APTOS HIGH SCHOOL | NTNC | D1 | TD | SANTA CRUZ | GW |
| CA4400634 | APTOS HILLS MUTUAL WATER CO | C | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA4400684 | APTOS RIDGE MUTUAL WATER CO | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA1900936 | AQUA J. MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA3900831 | ARBOR MOBILE HOME PARK WS | C | D1 | T1 | SAN JOAQUIN | GW |
| CA0600042 | ARBUCKLE GOLF CLUB | NC | NR | There are no treatment plants | COLUSA | GW |
| CA0610001 | ARBUCKLE PUBLIC UTILITY DISTRICT | C | D2 | TD | COLUSA | GW |
| CA1210001 | ARCATA, CITY OF | C | D3 | T2 | HUMBOLDT | GWP |
| CA5403151 | ARCO AM PM - PIXLEY | NC | NR | There are no treatment plants | TULARE | GW |
| CA1504009 | ARCO AMPM #42924 | NC | NR | There are no treatment plants | KERN | GW |
| CA1000652 | ARCO BRAWLEY AND HWY 180 | NC | NR | TD | FRESNO | GW |
| CA3400271 | ARCOHE ELEM SCHOOL - MAIN CAMPUS | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4200983 | ARCTIC COLD | NTNC | Missing treatment classification in SDWIS | SANTA BARBARA | GW | |
| CA2000660 | ARDAGH GLASS, INC | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA4901392 | ARISTA WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3200127 | ARLINGTON HEIGHTS MHP | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA1000151 | ARMENIAN CHURCH CAMP | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1610001 | ARMONA COMMUNITY SERVICES DIST | C | D2 | T3 | KINGS | GW |
| CA4910018 | ARMSTRONG VALLEY-CAL WATER SERVICE (PUC) | C | D1 | TD | SONOMA | GW |
| CA3500576 | AROMAS HILLS MUTUAL WATER ASSOCIATION | C | D1 | T1 | SAN BENITO | GW |
| CA3510004 | AROMAS WATER DISTRICT | C | D2 | T1 | SAN BENITO | GW |
| CA4000823 | ARONHILL VINEYARD | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA3901006 | ARP MINIMART CORP WS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3610110 | ARROWBEAR PARK CWD | C | D2 | T2 | SAN BERNARDINO | GW |
| CA2500516 | ARROWHEAD GOLF COURSE | NC | NR | There are no treatment plants | MODOC | GW |
| CA3600415 | ARROWHEAD PINE ROSE CABIN | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601135 | ARROWHEAD REGIONAL MEDICAL CENTER | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GWP |
| CA3610093 | ARROWHEAD VILLAS MUTUAL SERVICE COMPANY | C | D1 | T2 | SAN BERNARDINO | SWP |
| CA4901231 | ARROWOOD VINEYARDS & WINERY | NC | NR | T1 | SONOMA | GW |
| CA2701658 | ARROYO CENTER WC | C | D1 | T2 | MONTEREY | GU |
| CA2702520 | ARROYO SECO ESTATES MWS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2701166 | ARROYO SECO REC WS | NC | NR | T1 | MONTEREY | GW |
| CA2801008 | ARTESA VINEYARDS & WINERY | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA1800013 | ARTISAN COFFEE | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1100203 | ARTOIS COMMUNITY S.D. | C | D1 | There are no treatment plants | GLENN | GW |
| CA1510001 | ARVIN COMMUNITY SERVICES DIST | C | D3 | T2 | KERN | GW |
| CA4700722 | ASH CREEK FIRE STATION-STNF | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA2800047 | ASHES & DIAMONDS WINERY | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA3500900 | ASHFORD HIGHLANDS MWC | C | D1 | TD | SAN BENITO | GW |
| CA2702148 | ASOLEADO MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1400066 | ASPENDELL MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA2700503 | ASSISI MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3200172 | ASSOCIATIONS OF THOMPSON LAKE | NC | NR | T2 | PLUMAS | SW |
| CA4901203 | ASTI WINERY | NTNC | D1 | T2 | SONOMA | GU |
| CA3901258 | AT&T CALIFORNIA - UER47 | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000588 | AT&T WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4010002 | ATASCADERO MUTUAL WATER CO | C | D4 | T2 | SAN LUIS OBISPO | GW |
| CA4010832 | ATASCADERO STATE HOSPITAL | C | D2 | TD | SAN LUIS OBISPO | GW |
| CA1500289 | ATHAL MUTUAL WATER SYSTEM | C | D1 | TD | KERN | GW |
| CA4900673 | ATHENA TERRACE MUTUAL WATER COMPANY | C | D1 | T1 | SONOMA | GW |
| CA5500259 | ATLAS BUSINESS PARK | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA1000589 | AUBERRY BRANCH LIBRARY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000609 | AUBERRY LDS CHURCH | NC | D1 | TD | FRESNO | GW |
| CA1000524 | AUBERRY SEVENTH DAY ADVENTIST CHURCH | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3100069 | AUBURN RIDGE WOODS | C | D1 | T1 | PLACER | GW |
| CA3100011 | AUBURN VALLEY COMMUNITY SERVICE DIS | C | D1 | T1 | PLACER | GW |
| CA3190003 | AUBURN VALLEY CSD - RECLAMATION | NP | There are no treatment plants | PLACER | ||
| CA4500167 | AUCTION MART SNACK BAR | NC | NR | TD | SHASTA | GW |
| CA2100557 | AUDUBON CANYON RANCH - MGP PICHER | NC | NR | T1 | MARIN | GW |
| CA2100564 | AUDUBON CANYON RANCH - MGP VOLUNTEER | NC | NR | T2 | MARIN | GU |
| CA3700044 | AUERBACH FARMS | NTNC | D1 | TD | SAN DIEGO | GW |
| CA4900620 | AUSTIN ACRES MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4900630 | AUSTIN CREEK MUTUAL (SPRINGHILL) | C | D1 | T1 | SONOMA | GW |
| CA3901418 | AUSTIN INDUSTRIAL PARK WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5400750 | AUTOCAMP SEQUOIA | NC | NR | TD | TULARE | GW |
| CA2202036 | AUTOCAMP-YOSEMITE | NC | NR | TD | MARIPOSA | GW |
| CA2400232 | AV THOMAS PRODUCE, INC. | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA1990013 | AVALON, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA1610002 | AVENAL, CITY OF | C | D3 | T3 | KINGS | SW |
| CA1910023 | AVERYDALE MWC | C | D2 | T1 | LOS ANGELES | GW |
| CA4000222 | AVILA BEACH COMMUNITY SERVICES DISTRICT | C | D1 | There are no treatment plants | SAN LUIS OBISPO | SWP |
| CA4090013 | AVILA BEACH CSD - RW | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4000716 | AVILA VALLEY MUTUAL WATER CO | C | D1 | T1 | SAN LUIS OBISPO | SWP |
| CA0310021 | AWA - CAMANCHE VILLAGE | C | D3 | TD | AMADOR | GW |
| CA0300073 | AWA - TIGER CREEK POWERHOUSE | NTNC | D1 | T2 | AMADOR | SW |
| CA0310012 | AWA BUCKHORN PLANT | C | D4 | T3 | AMADOR | SW |
| CA0310019 | AWA LA MEL HEIGHTS #3 | C | D1 | T1 | AMADOR | GW |
| CA0310002 | AWA, IONE | C | D2 | T3 | AMADOR | SW |
| CA0310003 | AWA, TANNER | C | D3 | T3 | AMADOR | SW |
| CA1200704 | AZALEA GLEN | NC | NR | T2 | HUMBOLDT | SW |
| CA3301025 | AZALEA TRAILS GIRL SCOUTS CAMP | NC | NR | TD | RIVERSIDE | GW |
| CA1600023 | AZCAL MANAGEMENT CO | C | D1 | T2 | KINGS | SW |
| CA2000682 | AZTECA MILLING LP VALLEY GRAIN | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA4901189 | AZURE ACRES CD RECOVERY CENTER | NC | NR | T1 | SONOMA | GW |
| CA1910007 | AZUSA LIGHT AND WATER | C | D5 | T4 | LOS ANGELES | SW |
| CA3500570 | B & R FARMS | NC | NR | TD | SAN BENITO | GW |
| CA3400103 | B & W RESORT MARINA | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2800900 | B CELLARS WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA2000794 | B K LIGHTING INC | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3900586 | B&G MOBILE HOME PARK LLC WS | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4200941 | BABCOCK WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4000644 | BABE RUTH'S OAK VIEW | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA4901373 | BACA TASTING ROOM | NC | NR | T1 | SONOMA | GW |
| CA4901474 | BACCHUS LANDING CELLARS | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901353 | BACIGALUPI VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA5400710 | BADGER HILL ESTATES | C | D1 | TD | TULARE | GW |
| CA3601019 | BAGDAD CAFE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3301935 | BAGDASARIAN PACKING THERMAL, LLC | NTNC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA1600605 | BAKER COMMODITIES INC. | NTNC | D1 | T1 | KINGS | GW |
| CA1000602 | BAKER COMMODITIES INC. | NTNC | D1 | T1 | FRESNO | GW |
| CA3600022 | BAKER COMMUNITY SERVICES DISTRICT | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5401084 | BAKER MOUNTAIN HOUSE | NC | NR | There are no treatment plants | TULARE | GW |
| CA3100014 | BAKER RANCH WATER CORP | C | D1 | There are no treatment plants | PLACER | GW |
| CA1503392 | BAKERSFIELD 420 CLUB | NC | NR | There are no treatment plants | KERN | GW |
| CA1503656 | BAKERSFIELD NATIONAL CEMETERY WS | NC | NR | TD | KERN | GW |
| CA1510031 | BAKERSFIELD, CITY OF | C | D4 | T3 | KERN | SWP |
| CA1010001 | BAKMAN WATER COMPANY | C | D3 | T3 | FRESNO | GW |
| CA2010009 | BAKMAN WATER-ROLLING HILLS | C | D2 | T2 | MADERA | GW |
| CA5400823 | BALCH PARK | NC | NR | There are no treatment plants | TULARE | GW |
| CA2800079 | BALDACCI FAMILY VINEYARDS | NC | NR | There are no treatment plants | NAPA | GW |
| CA0900654 | BALDWIN BEACH | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3301028 | BALDY MOUNTAIN RANCH | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA1090003 | BALL RANCH WASTEWATER TREATMENT FACILITY | NP | There are no treatment plants | FRESNO | ||
| CA4000209 | BALL TAGAWA GROWERS | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4901312 | BALLETTO VINEYARDS | NC | NR | There are no treatment plants | SONOMA | GW |
| CA2400167 | BALLICO CSD | C | D1 | T1 | MERCED | GW |
| CA4500054 | BALLS FERRY FISHING RESORT | C | D1 | TD | SHASTA | GW |
| CA2000655 | BALTIMORE AIRCOIIL COMPANY | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA0400093 | BAMBI INN | NC | NR | There are no treatment plants | BUTTE | GW |
| CA3705075 | BANDY CANYON RANCH CORP | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3702237 | BANNER SMALL WATER COMPANY | NC | D1 | TD | SAN DIEGO | GW |
| CA3301031 | BANNING HTS. MUTUAL WATER CO. | C | D2 | T2 | RIVERSIDE | SW |
| CA3310006 | BANNING, CITY OF | C | D4 | TD | RIVERSIDE | GW |
| CA3390006 | BANNING, CITY OF (RECYCLED WATER) | NP | There are no treatment plants | RIVERSIDE | ||
| CA3901014 | BANTA ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901299 | BANTA INN WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5800831 | BAPTIST CHRISTIAN CAMP OF CA | NC | NR | There are no treatment plants | YUBA | GW |
| CA3600027 | BAR "H" MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5305402 | BAR 717 RANCH | NC | NR | T2 | TRINITY | SW |
| CA3600025 | BAR-LEN MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600524 | BARN THE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000214 | BARON CANYON MUTUAL WATER CO. | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA3700041 | BARRETT LAKE MH AND RV LLC | C | D1 | TD | SAN DIEGO | GW |
| CA3610708 | BARSTOW ARMY HELIPORT | NTNC | D1 | TD | SAN BERNARDINO | GW |
| CA3600409 | BARSTOW CALICO KOA | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4900986 | BARTHOLOMEW FOUNDATION | NC | NR | T1 | SONOMA | GW |
| CA5400922 | BARTLETT PARK | NC | D1 | TD | TULARE | GW |
| CA3601048 | BARTON FLATS WATER SYSTEM | C | D1 | T2 | SAN BERNARDINO | SW |
| CA3901369 | BASALITE - TRACY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2000716 | BASS FORK STAR | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000501 | BASS LAKE ANNEX 3 | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000502 | BASS LAKE HEIGHTS MUTUAL WATER | C | D1 | T2 | MADERA | GW |
| CA2010003 | BASS LAKE WATER COMPANY | C | D2 | T2 | MADERA | SW |
| CA4600084 | BASSETT'S STATION | NC | NR | There are no treatment plants | SIERRA | GW |
| CA4500224 | BASSHOLE BREWS | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4000200 | BASSI RANCH MUTUAL WATER CO. | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5000395 | BASSO BRIDGE FISHING/BOATING ACCESS | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3400267 | BATES ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2000503 | BATTERSON WORK CENTER (WATER) | NC | NR | There are no treatment plants | MADERA | GW |
| CA2700842 | BAUMANN RD WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3310801 | BAUTISTA CC NO. 36 | C | D1 | T2 | RIVERSIDE | GW |
| CA0706102 | BAY STANDARDS | NTNC | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA3901131 | BAY VALLEY ESTATES PWS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1700606 | BAYCLIFF WATER | C | D1 | T1 | LAKE | GW |
| CA5700785 | BAYER RESEARCH AND DEVELOPMENT LLC | NTNC | D1 | T1 | YOLO | GW |
| CA3500804 | BAYER RESEARCH AND DEVELOPMENT LLC | NTNC | D1 | T2 | SAN BENITO | GW |
| CA4090005 | BAYWOOD PARK/ LOS OSOS - RWP | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA2000950 | BBPA FIRE/ARCHCOMB DOMESTIC | NC | NR | There are no treatment plants | MADERA | GW |
| CA3610060 | BDVWA - GOAT MOUNTAIN ID | C | D2 | TD | SAN BERNARDINO | GW |
| CA1200643 | BEACH CREEK MOBILE HOME PARK | C | D1 | T2 | HUMBOLDT | SW |
| CA5890003 | BEALE AFB WW | NP | There are no treatment plants | YUBA | ||
| CA5810700 | BEALE AIR FORCE BASE | C | D2 | T2 | YUBA | GW |
| CA3901403 | BEAR CREEK COMMUNITY CHURCH | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000003 | BEAR CREEK WATER IMPROVEMENT | NC | NR | T2 | FRESNO | SW |
| CA3901404 | BEAR CREEK WINERY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000474 | BEAR MOUNTAIN LIBRARY/ACT CNTR | NC | D1 | TD | FRESNO | GW |
| CA1000528 | BEAR MOUNTAIN PIZZA | NC | D1 | TD | FRESNO | GW |
| CA1503629 | BEAR MOUNTAIN RV PARK WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1502799 | BEAR MOUNTAIN TRUCK STOP | NC | NR | There are no treatment plants | KERN | GW |
| CA0300033 | BEAR RIVER CAMP--SOUTH SHORE | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0300034 | BEAR RIVER GROUP CAMPGROUND | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0300036 | BEAR RIVER LAKE RESORT | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0300065 | BEAR RIVER SUMMER HOME TRACT | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0901217 | BEAR STATE WATER WORKS | C | D1 | T5 | EL DORADO | GW |
| CA1590003 | BEAR VALLEY COMMUNITY SERVICES DISTRICT | NP | There are no treatment plants | KERN | ||
| CA1510038 | BEAR VALLEY CSD | C | D3 | TD | KERN | GW |
| CA3601045 | BEAR VALLEY MHP | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA0202549 | BEAR VALLEY MOUNTAIN RESORT | NC | NR | There are no treatment plants | ALPINE | GW |
| CA4000660 | BEAR VALLEY WATER COMPANY | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA0290901 | BEAR VALLEY WATER DISTRICT - RECYCLE | NP | There are no treatment plants | ALPINE | ||
| CA3107332 | BEAR VALLEY YMCA CAMP | NC | NR | There are no treatment plants | PLACER | GW |
| CA3105852 | BEAR VALLEY, SIERRA DISCOVERY TRAIL | NC | NR | There are no treatment plants | PLACER | GW |
| CA1000126 | BEARSKIN MEADOW DIABETIC YOUTH CAMP | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2000535 | BEASORE MUTUAL WATER CO. | NC | NR | There are no treatment plants | MADERA | GW |
| CA2803912 | BEAULIEU VINEYARD | NTNC | D1 | TD | NAPA | GW |
| CA3310002 | BEAUMONT CHERRY VALLEY WD | C | D4 | TD | RIVERSIDE | GW |
| CA3390002 | BEAUMONT CHERRY VALLEY WD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA5000347 | BECKLEY LYONS WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5400816 | BEDEL MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | TULARE | GW |
| CA5602133 | BEEDY WATER COMPANY, LLC | NTNC | D1 | T1 | VENTURA | GW |
| CA2800070 | BEHRENS FAMILY WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA3900907 | BEL AIR MOBILE ESTATE | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000551 | BEL PASSI BASEBALL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3200143 | BELDEN TOWN & RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3301182 | BELK FARMS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2800071 | BELL WINE CELLARS | NC | NR | There are no treatment plants | NAPA | GW |
| CA0300107 | BELLA GRACE VINEYARDS | NC | NR | There are no treatment plants | AMADOR | GW |
| CA1700610 | BELLA LAGO MOBILE HOME PARK | C | D1 | T1 | LAKE | GW |
| CA0300083 | BELLA PIAZZA WINERY | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2300646 | BELLA SHORES MOBILE HOME PARK | C | D1 | T1 | MENDOCINO | GW |
| CA2801073 | BELLA UNION WINERY | NTNC | NR | There are no treatment plants | NAPA | GW |
| CA4901448 | BELLA VINEYARDS AND WINE CAVES | NC | NR | T1 | SONOMA | GW |
| CA1502653 | BELLA VISTA MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA4510014 | BELLA VISTA WATER DISTRICT | C | D3 | T5 | SHASTA | SW |
| CA0707589 | BELLA VISTA WATER SYS | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA0310804 | BELLEDOR VINEYARDS | NC | NR | There are no treatment plants | AMADOR | GW |
| CA5500042 | BELLEVIEW OAKS MUTUAL WATER CO | C | D1 | T1 | TUOLUMNE | GW |
| CA4900693 | BELLEVUE UNION SCH DIST-BELLEVUE SCHOOL | NTNC | D1 | TD | SONOMA | GW |
| CA1910013 | BELLFLOWER - SOMERSET MWC | C | D3 | T2 | LOS ANGELES | SWP |
| CA1910012 | BELLFLOWER HOME GARDEN WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | SWP |
| CA1910018 | BELLFLOWER MUNICIPAL WATER SYSTEM | C | D2 | TD | LOS ANGELES | SWP |
| CA1000473 | BELMONT COUNTRY CLUB | NTNC | D1 | T2 | FRESNO | GW |
| CA1000460 | BELMONT TEMPERANCE PROPERTY WATER SYSTEM | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4900558 | BELMONT TERRACE MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1000004 | BELMONT WATER CORPORATION | C | D1 | T1 | FRESNO | GW |
| CA4410800 | BEN LOMOND CONSERVATION CAMP | NTNC | D1 | T1 | SANTA CRUZ | GW |
| CA1200671 | BENBOW-DEL ORO W.C. | C | D1 | T2 | HUMBOLDT | SW |
| CA5200511 | BEND ELEMENTARY SCHOOL | NTNC | D1 | TD | TEHAMA | GW |
| CA5200512 | BEND MOBILEHOME & RV PARK | C | D1 | TD | TEHAMA | GW |
| CA2800060 | BENNETT LANE WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4900585 | BENNETT RIDGE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SONOMA | GW |
| CA2600652 | BENTON COMMUNITY CENTER | NC | NR | There are no treatment plants | MONO | GW |
| CA2600502 | BENTON STATION | NC | NR | There are no treatment plants | MONO | GW |
| CA5800915 | BENZEEN AUTO PARTS | NTNC | D1 | T1 | YUBA | GW |
| CA4901204 | BENZIGER FAMILY WINERY | NTNC | D1 | TD | SONOMA | GW |
| CA3901452 | BEREA BAPTIST CHURCH STOCKTON CA | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA2801070 | BERINGER VINEYARDS | NTNC | D1 | T1 | NAPA | GW |
| CA5500136 | BERKELEY TUOLUMNE CAMP | NC | D1 | T2 | TUOLUMNE | SW |
| CA2702486 | BERNARDO RD WS #02 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA1400064 | BERNASCONI EDUCATION CENTER | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA5200507 | BERRENDOS SCHOOL | NTNC | D1 | TD | TEHAMA | GW |
| CA0400016 | BERRY CREEK COMMUNITY SERVICE DIST | C | D1 | There are no treatment plants | BUTTE | GW |
| CA0400068 | BERRY CREEK SCHOOL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA2701897 | BERRY DR WS #02 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5700618 | BERRYESSA BREWING COMPANY | NC | NR | T1 | YOLO | GW |
| CA2800526 | BERRYESSA ESTATES (LBRID) | C | D1 | T3 | NAPA | SW |
| CA2810013 | BERRYESSA HIGHLANDS | C | D1 | T3 | NAPA | SW |
| CA2810009 | BERRYESSA PINES WATER SYSTEM | C | D1 | T2 | NAPA | SW |
| CA3400380 | BERT'S DINER | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA0810003 | BERTSCH OCEAN VIEW CSD | C | D2 | There are no treatment plants | DEL NORTE | GWP |
| CA3500823 | BEST ROAD MWC | C | D1 | T1 | SAN BENITO | GU |
| CA3601077 | BEST WESTERN CAJON PASS | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5000462 | BEST WESTERN-ORCHARD INN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3500836 | BETABEL RV RESORT | C | D1 | There are no treatment plants | SAN BENITO | GW |
| CA3900779 | BETHANY TEMPLE WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA0706037 | BETHEL BAPTIST CHURCH | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA2903060 | BETHEL CHURCH | NC | NR | There are no treatment plants | NEVADA | GW |
| CA0707503 | BETHEL HARBOR | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA1502217 | BETHEL IN THE HILLS - PCG CAMP | NC | NR | There are no treatment plants | KERN | GW |
| CA0707523 | BETHEL ISLAND ESTATES | C | D1 | TD | CONTRA COSTA | GW |
| CA0707575 | BETHEL ISLAND MHC | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA0707572 | BETHEL ISLAND MUTUAL WATER CO | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA0706054 | BETHEL MARKET | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0706032 | BETHEL MISSIONARY BAPTIST | NC | NR | T1 | CONTRA COSTA | GW |
| CA4200947 | BETTER COOLING PRODUCE | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA4200877 | BETTERAVIA GAS & MART | NC | NR | T1 | SANTA BARBARA | GW |
| CA1910156 | BEVERLY HILLS-CITY, WATER DEPT. | C | D4 | T4 | LOS ANGELES | SWP |
| CA0900553 | BEVERLY LODGE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1000540 | BHANDAL, INC. | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4100583 | BIANCHI FLOWERS INC | C | D1 | TD | SAN MATEO | GW |
| CA5800810 | BIBLE BAPTIST ACADEMY | NTNC | D1 | There are no treatment plants | YUBA | GW |
| CA4000733 | BIDDLE REGIONAL COUNTY PARK | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA0400120 | BIDWELL PARK GOLF COURSE | NC | D1 | TD | BUTTE | GW |
| CA5402041 | BIG B TRAVEL CENTER 2 | NC | NR | T2 | TULARE | GW |
| CA4410001 | BIG BASIN WATER COMPANY | C | D3 | TD | SANTA CRUZ | GW |
| CA3601150 | BIG BEAR ADMINISTRATION | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3690007 | BIG BEAR AREA REGIONAL WASTEWATER AGENCY | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3610008 | BIG BEAR CITY CSD | C | D3 | T3 | SAN BERNARDINO | GU |
| CA3610044 | BIG BEAR LAKE DWP - BIG BEAR SYSTEM | C | D3 | T1 | SAN BERNARDINO | GW |
| CA3600395 | BIG BEAR SHORES RV RESORT | NC | NR | Missing treatment classification in SDWIS | SAN BERNARDINO | GW |
| CA2600596 | BIG BEND CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA3600376 | BIG BEND RESORT | NC | NR | T2 | SAN BERNARDINO | SW |
| CA1000005 | BIG CREEK COMMUNITY SERV DIST | C | D1 | TD | FRESNO | SWP |
| CA4400800 | BIG CREEK LUMBER COMPANY | NTNC | D1 | T1 | SANTA CRUZ | GW |
| CA1206005 | BIG LAGOON - HUMBOLDT CO. PARKS | NC | NR | There are no treatment plants | HUMBOLDT | GW |
| CA1200592 | BIG LAGOON CSD | C | D1 | TD | HUMBOLDT | GW |
| CA1200591 | BIG LAGOON PARK WATER CO. | C | D1 | TD | HUMBOLDT | GW |
| CA2600592 | BIG MEADOW CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA0500044 | BIG MEADOWS CAMPGROUND | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA0707588 | BIG OAK MOBILE HOME PARK WATER | C | D1 | TD | CONTRA COSTA | GW |
| CA1410006 | BIG PINE CSD | C | D1 | TD | INYO | GWP |
| CA3600483 | BIG PINE FLATS ADMIN & RECREATION | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600031 | BIG PINE TRACT | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4400526 | BIG REDWOOD PARK WATER | C | D1 | There are no treatment plants | SANTA CRUZ | SWP |
| CA2300596 | BIG RIVER VISTA MUTUAL WATER COMPANY | C | D1 | T1 | MENDOCINO | GW |
| CA0800532 | BIG ROCK C.S.D. | C | D1 | T1 | DEL NORTE | GW |
| CA2190008 | BIG ROCK RANCH | NP | There are no treatment plants | MARIN | ||
| CA4500027 | BIG SPRINGS MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | SHASTA | GW |
| CA4700577 | BIG SPRINGS UNION ELEM. SCHOOL | NTNC | D1 | TD | SISKIYOU | GW |
| CA2702209 | BIG SUR BAZAAR WS | NC | NR | TD | MONTEREY | GW |
| CA2701945 | BIG SUR CAMPGROUND WS | NC | NR | T2 | MONTEREY | GU |
| CA1400524 | BIG TREES CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA3900637 | BIG WHEEL MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0400155 | BIGGERS GLEN MUTUAL WATER CO | C | D1 | TD | BUTTE | GW |
| CA3610009 | BIGHORN - DESERT VIEW WATER AGENCY | C | D2 | TD | SAN BERNARDINO | GW |
| CA2900501 | BIGLEYS MARKET / BRASS RAIL | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3901449 | BIGLIERI FARM MARKET | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503655 | BILLINGSLEY DVM WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1010049 | BIOLA COMMUNITY SERVICES DIST | C | D2 | TD | FRESNO | GW |
| CA2600501 | BIRCHIM COMMUNITY SERVICE DISTRICT | C | D1 | There are no treatment plants | MONO | GW |
| CA1400503 | BIRD INDUSTRIAL COMPLEX | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA4800797 | BIRDS LANDING HUNTING PRESERVE | NC | NR | There are no treatment plants | SOLANO | GW |
| CA1490001 | BISHOP AREA WASTEWATER AUTHORITY (BAWA) | NP | There are no treatment plants | INYO | ||
| CA1400014 | BISHOP COUNTRY CLUB | NC | NR | There are no treatment plants | INYO | GW |
| CA1400535 | BISHOP CREEK CHEVRON | NC | There are no treatment plants | INYO | GW | |
| CA1400013 | BISHOP CREEK LODGE | NC | NR | TD | INYO | GW |
| CA1400181 | BISHOP CREEK SYSTEM | NC | NR | TD | INYO | GW |
| CA1410001 | BISHOP, CITY OF | C | D1 | TD | INYO | GW |
| CA2900563 | BITNEY SPRINGS CENTER WATER SYSTEM | NTNC | D1 | T2 | NEVADA | SW |
| CA1400529 | BITTERBRUSH CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA3500507 | BITTERWATER-TULLY SCHOOL WS | NTNC | D1 | T1 | SAN BENITO | SW |
| CA0900592 | BLACK BEAR LODGE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4500183 | BLACK BUTTE ELEMENTARY SCHOOL | NTNC | D1 | TD | SHASTA | GW |
| CA4500322 | BLACK BUTTE JUNIOR HIGH SCHOOL | NTNC | D1 | TD | SHASTA | GW |
| CA5200670 | BLACK BUTTE LAKE, BUCKHORN GROUP, USCOE | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA5200672 | BLACK BUTTE LAKE, BUCKHORN RA, USCOE | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA5201142 | BLACK BUTTE LAKE, HEADQUARTERS, USCOE | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA1100642 | BLACK BUTTE LK, ORLAND BUTTES CAMPGROUND | NC | NR | There are no treatment plants | GLENN | GW |
| CA0300088 | BLACK CHASM CAVERN | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2000627 | BLACK HAWK LODGE | NC | NR | There are no treatment plants | MADERA | GW |
| CA3600380 | BLACK MEADOW LANDING | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2300858 | BLACK OAK FACILITY | NC | D1 | TD | MENDOCINO | SW |
| CA2400046 | BLACK RASCAL WATER COMPANY | C | D1 | There are no treatment plants | MERCED | GW |
| CA2800107 | BLACK STALLION WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA2300877 | BLACKBIRD FARM | NC | NR | TD | MENDOCINO | GW |
| CA2000848 | BLACKHAWK CENTER WATER SYSTEM | NTNC | D1 | TD | MADERA | GW |
| CA2700837 | BLACKIE RD WS #05 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3200134 | BLAIRSDEN WATER USERS ASSN | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA1900075 | BLEICH FLATS MUTUAL | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1000561 | BLM SAN JOAQUIN RIVER GORGE | NC | D1 | There are no treatment plants | FRESNO | GW |
| CA2210933 | BLM-BRICEBURG WATER SYSTEM | NC | NR | T1 | MARIPOSA | GW |
| CA3301877 | BLOCK 77 WATER COMPANY | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA0310805 | BLOOD GULCH | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0202523 | BLOOMFIELD CG #1 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA5000435 | BLOOMINGCAMP WATER SYSTEM | NC | NR | T1 | STANISLAUS | GW |
| CA1000517 | BLOSSOM TRAIL CAFE | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1300632 | BLU-IN CAFE | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA4901216 | BLUE HERON RESTAURANT | NC | NR | T1 | SONOMA | GW |
| CA0510009 | BLUE LAKE SPRINGS MUT WTR | C | D2 | T2 | CALAVERAS | SWP |
| CA1210002 | BLUE LAKE, CITY OF | C | D2 | There are no treatment plants | HUMBOLDT | GWP |
| CA1700561 | BLUE LAKES IMPROVEMENT CLUB | C | D1 | T2 | LAKE | GW |
| CA1700589 | BLUE LAKES MOBILE HOME PARK | C | D1 | TD | LAKE | GW |
| CA1700596 | BLUE LAKES VILLAGE | C | D1 | T1 | LAKE | GW |
| CA2100549 | BLUE MOUNTAIN CENTER | C | D1 | T1 | MARIN | GW |
| CA0409181 | BLUE OAK TERRACE MUTUAL | C | D1 | There are no treatment plants | BUTTE | GW |
| CA1900055 | BLUE SKIES TRAILOR PARK | C | D1 | T2 | LOS ANGELES | GW |
| CA4900789 | BLUE SPRUCE MOBILE HOME PARK | C | D1 | T1 | SONOMA | GW |
| CA4810042 | BLUE VICTORIAN WINERY | NC | NR | TD | SOLANO | GW |
| CA5500040 | BLUEBELL VALLEY MWC | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA1000443 | BLUFF POINTE GOLF COURSE AND LEARNING CE | NC | NR | TD | FRESNO | GW |
| CA2701740 | BLUFFS WS | C | D1 | TD | MONTEREY | GW |
| CA3310003 | BLYTHE - CITY OF | C | D4 | T2 | RIVERSIDE | GW |
| CA3301630 | BLYTHE - HIDDEN BEACHES | C | D1 | T1 | RIVERSIDE | GW |
| CA3301428 | BLYTHE - MESA RANCH | C | D2 | T1 | RIVERSIDE | GW |
| CA3301045 | BLYTHE MOBILE HOME ESTATES | C | D1 | TD | RIVERSIDE | GW |
| CA4390013 | BO TOWN RECYCLED WATER | NP | There are no treatment plants | SANTA CLARA | ||
| CA1700738 | BOATIQUE WINES | NC | NR | TD | LAKE | GW |
| CA5401074 | BOB WILEY DETENTION FACILITY | NTNC | D2 | TD | TULARE | GW |
| CA1000667 | BOB'S MARKET | NC | D1 | T1 | FRESNO | GW |
| CA5400985 | BOB'S TINY MART | NC | NR | There are no treatment plants | TULARE | GW |
| CA4200891 | BOBCAT SPRINGS MUTUAL WATER COMPANY | C | D1 | T1 | SANTA BARBARA | GW |
| CA4500351 | BOBS MARKET | NC | D1 | TD | SHASTA | GW |
| CA2900554 | BOCA REST CAMPGROUND | NC | NR | There are no treatment plants | NEVADA | GW |
| CA4901290 | BODEGA BAY OYSTER COMPANY | NC | NR | T1 | SONOMA | GW |
| CA4910021 | BODEGA BAY PUBLIC UTILITY DISTRICT | C | D3 | T2 | SONOMA | GW |
| CA4990015 | BODEGA BAY PUD (RECYCLED) | NP | NA | There are no treatment plants | SONOMA | |
| CA4900850 | BODEGA WATER COMPANY | C | D1 | T2 | SONOMA | GU |
| CA3901350 | BOETHING TREELAND FARMS INC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5700514 | BOGLE FAMILY LIMITED PARTNER | NTNC | D1 | T1 | YOLO | GW |
| CA5700523 | BOGLE VINEYARDS TASTING ROOM | NTNC | NR | There are no treatment plants | YOLO | GW |
| CA1200600 | BOISE CREEK CG-SNRF | NC | NR | T2 | HUMBOLDT | SW |
| CA4901393 | BOISSET - BUENA VISTA WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4900998 | BOISSET - DE LOACH WINERY | NC | NR | T1 | SONOMA | GW |
| CA2400304 | BOLAND'S MARKET | NC | NR | There are no treatment plants | MERCED | GW |
| CA2110005 | BOLINAS COMMUNITY PUD | C | D2 | T2 | MARIN | SW |
| CA2190004 | BOLINAS MESA PARK RECYCLED WATER | NP | NA | There are no treatment plants | MARIN | |
| CA3601173 | BOLO STATION RV PARK & SNACK BAR | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1503349 | BOLTHOUSE FRESH FOODS | NTNC | D2 | T2 | KERN | GW |
| CA2000529 | BONADELLE RANCHOS NO. 2 MUTUAL WATER CO | C | D2 | TD | MADERA | GW |
| CA5700555 | BONFIRE VILLAGE HOTEL | C | NR | There are no treatment plants | YOLO | GW |
| CA2000944 | BONITA FIVE INC. | NC | NR | T2 | MADERA | GW |
| CA3600384 | BONITA RANCH RV CAMPGROUND | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4200833 | BONITA SCHOOL | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA4400751 | BONNY DOON SCHOOL | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4000846 | BOOKER WINERY | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA2300953 | BOONVILLE HOTEL | NC | NR | TD | MENDOCINO | GW |
| CA5403211 | BOOTH RANCHES LLC | NTNC | D1 | T2 | TULARE | GW |
| CA2600567 | BOOTLEG CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA0300090 | BORJON WINERY | NC | NR | There are no treatment plants | AMADOR | GW |
| CA1300653 | BORNT 1992 IRREVOCABLE TRUST | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1510002 | BORON CSD | C | D2 | There are no treatment plants | KERN | SWP |
| CA3790783 | BORREGO SPRINGS CSD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3710036 | BORREGO WD | C | D2 | TD | SAN DIEGO | GW |
| CA2800055 | BOUCHAINE VINEYARDS | NC | NR | There are no treatment plants | NAPA | GW |
| CA4400704 | BOULDER CREEK SCOUT RESERV. | NC | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA1400504 | BOULDER CREEK TRAILER PARK | NC | NR | There are no treatment plants | INYO | GW |
| CA4901071 | BOULEVARD HEIGHTS MUTUAL WATER | C | D1 | TD | SONOMA | GW |
| CA3700195 | BOULEVARD KOA DRINKING WATER | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3702706 | BOULEVARD PINES MOBILE HOME AND RV PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5602512 | BOUQUET MULTIMEDIA | NC | D1 | T1 | VENTURA | GW |
| CA3200123 | BOURBON & WATER CO | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3310004 | BOX SPRINGS MUTUAL WC | C | D2 | T2 | RIVERSIDE | SWP |
| CA4901144 | BR COHN WINERY AND OLIVE CO | NTNC | D1 | T1 | SONOMA | GW |
| CA4400604 | BRACKEN BRAE COUNTRY CLUB | C | D1 | There are no treatment plants | SANTA CRUZ | SWP |
| CA3301171 | BRADFORD RUN RV | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA2700964 | BRADLEY UNION SCHOOL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2701701 | BRADLEY-LOCKWOOD RD WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3400391 | BRADSHAW CHRISTIAN SCHOOL | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3400382 | BRADSHAW RANCH GOLF COURSE INC | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3400180 | BRANCH CENTER [SWS] | NTNC | D2 | T2 | SACRAMENTO | GW |
| CA4000675 | BRANCH ELEMENTARY SCHOOL | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4900587 | BRAND WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA5603301 | BRANDEIS BARDIN INSTITUTE | C | D1 | There are no treatment plants | VENTURA | SWP |
| CA4200979 | BRANDER VINEYARD | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA2701731 | BRANDON CREEK MWS | C | D1 | T2 | MONTEREY | SW |
| CA1300685 | BRANDT CATTLE | NTNC | D1 | T3 | IMPERIAL | SW |
| CA5403138 | BRANDT FARMS, INC | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA4900545 | BRANGER MUTUAL WATER COMPANY, INC. | C | D1 | TD | SONOMA | GW |
| CA3410302 | BRANNAN ISLAND STATE REC. AREA | NC | D1 | T1 | SACRAMENTO | GW |
| CA3400206 | BRANNAN'S ISLAND TIME MARINA | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2300663 | BRANSCOMB MOBILE HOME PARK | C | D1 | T2 | MENDOCINO | SW |
| CA1700731 | BRASSFIELD ESTATE WINERY | NC | D1 | TD | LAKE | GW |
| CA5402022 | BRAVO FARMS TRAVER | NC | NR | There are no treatment plants | TULARE | GW |
| CA1310001 | BRAWLEY, CITY OF | C | D3 | T4 | IMPERIAL | SWP |
| CA4000850 | BRECON ESTATE | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5200008 | BREESE SUBDIVISION 2 | C | D1 | TD | TEHAMA | GW |
| CA5402019 | BRENDA EXPREES | NC | NR | There are no treatment plants | TULARE | GW |
| CA0710004 | BRENTWOOD | C | D5 | TD | CONTRA COSTA | SWP |
| CA0707534 | BRENTWOOD MARINA | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA5000335 | BRETHREN HERITAGE SCHOOL, INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3200219 | BREWING LAIR | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1200587 | BRICELAND C.S.D. | C | D1 | T2 | HUMBOLDT | SW |
| CA4200970 | BRICK BARN ESTATE WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4901468 | BRICOLEUR VINEYARDS | NC | D1 | T2 | SONOMA | GW |
| CA5301014 | BRIDGE CAMP | NC | NR | There are no treatment plants | TRINITY | GW |
| CA4900644 | BRIDGEHAVEN PARK | C | D1 | T2 | SONOMA | SW |
| CA0707570 | BRIDGEHEAD CAFE | NC | NR | T1 | CONTRA COSTA | GW |
| CA2610003 | BRIDGEPORT PUD | C | D1 | T2 | MONO | GW |
| CA2600576 | BRIDGEPORT RESERVOIR MARINA AND CG | NC | NR | There are no treatment plants | MONO | GW |
| CA1200778 | BRIDGEVILLE ELEM. SCHOOL | NTNC | D1 | T1 | HUMBOLDT | GW |
| CA1500489 | BRITE LAKE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA1009023 | BRITZ/COLUSA | C | D1 | T2 | FRESNO | SW |
| CA1009179 | BRITZ/FIVE POINT SYSTEM | C | D1 | T2 | FRESNO | SW |
| CA2000521 | BROADVIEW TERRACE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | MADERA | GWP |
| CA4901375 | BROADWAY MARKET | NC | NR | T1 | SONOMA | GW |
| CA1500409 | BROCK MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA5000286 | BRONCO WINERY | NTNC | D1 | T3 | STANISLAUS | GW |
| CA3400336 | BROOKSIDE EQUESTRIAN PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1400056 | BROOKSIDE ESTATES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA3600385 | BROOKSIDE MHP | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1400059 | BROOKSIDE MOBILE HOME PARK | C | D1 | There are no treatment plants | INYO | GW |
| CA2310009 | BROOKTRAILS TOWNSHIP CSD | C | D3 | T3 | MENDOCINO | SW |
| CA2600661 | BROWN'S OWENS RIVER CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA5100138 | BROWNS ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA5800001 | BROWNS VALLEY ONE STOP | NC | NR | There are no treatment plants | YUBA | GW |
| CA0707901 | BRUNS MEMORIAL AMPHITHEATER | NC | NR | There are no treatment plants | CONTRA COSTA | SWP |
| CA4300978 | BRUSH AND OLD WELL MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA0900618 | BRYANT CREEK/FIR TRACTS MWA | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA5401010 | BSA-CAMP WHITSETT | NC | NR | There are no treatment plants | TULARE | GW |
| CA1000165 | BSA/CAMP CHAWANAKEE | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000156 | BSA/CAMP OLJATO | NC | NR | TD | FRESNO | GW |
| CA3900796 | BTQC-ESCALON | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901277 | BUCHER WATER COMPANY | NTNC | D1 | TD | SONOMA | GW |
| CA2208056 | BUCK MEADOWS LODGE-YOSEMITE WESTGATE | NC | D1 | T1 | MARIPOSA | GW |
| CA2000749 | BUCK RIDGE HENSLEY LAKE | NC | D1 | T2 | MADERA | SW |
| CA5400637 | BUCKEYE TREE LODGE | NC | D1 | T2 | TULARE | SW |
| CA2000806 | BUCKHORN BAR AND RESTAURANT | NC | NR | There are no treatment plants | MADERA | GW |
| CA3301063 | BUCKHORN CAMP | NC | NR | TD | RIVERSIDE | GW |
| CA1710011 | BUCKINGHAM PARK WATER DISTRICT | C | D2 | T3 | LAKE | SW |
| CA4901345 | BUCKLEY FAMILY PARTNERSHIP | NTNC | D1 | TD | SONOMA | GW |
| CA3200098 | BUCKS LAKE CAMP AND RV PARK | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3205011 | BUCKS LAKE MARINA | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200072 | BUCKS LAKESHORE RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA5301001 | BUCKTAIL MUTUAL WATER COMPANY | C | D1 | TD | TRINITY | GW |
| CA2700998 | BUD ANTLE MARINA WS | NTNC | D1 | TD | MONTEREY | GW |
| CA5301010 | BUD FINE MWC | NC | NR | T2 | TRINITY | SW |
| CA5000297 | BUEHNER HOUSES | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000313 | BUEHNER WATER SYSTEM | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4400763 | BUENA VISTA MIGRANT CENTER | C | D1 | T2 | SANTA CRUZ | GW |
| CA5400919 | BUENA VISTA SCHOOL | NTNC | D1 | T2 | TULARE | GW |
| CA2400034 | BUHACH PENTECOST HALL | NC | NR | There are no treatment plants | MERCED | GW |
| CA2400134 | BUHACH PRESCHOOL (KINDERCARE) | NTNC | D1 | TD | MERCED | GW |
| CA3400383 | BUILDING TRADES ASSOC | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5800814 | BULLARD'S BAR REC FAC WTR SYS | NC | D2 | T2 | YUBA | SW |
| CA3901484 | BULLFROG LANDING MARINA | NC | NR | T1 | SAN JOAQUIN | GW |
| CA5500182 | BUMBLEBEE TRACT IMP ASSOC | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA1995003 | BURBANK, CITY OF - RECLAMATION | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910179 | BURBANK-CITY, WATER DEPT. | C | D5 | T4 | LOS ANGELES | SWP |
| CA5000509 | BURCHELL NURSERY, INC | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA4300567 | BURCHELL ROAD WATER ASSOCIATION | C | D1 | TD | SANTA CLARA | GW |
| CA3601131 | BURGER KING #9310 | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2800013 | BURGESS CELLARS | NC | NR | Operator is not required | NAPA | GW |
| CA1500336 | BURLANDO HEIGHTS MUTUAL WATER CO. | C | D1 | There are no treatment plants | KERN | GW |
| CA1210324 | BURLINGTON CG-STATE PARKS | NC | NR | T1 | HUMBOLDT | GW |
| CA3901407 | BURLINGTON NORTHERN SANTA FE | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4500058 | BURNEY FALLS RESORT | NC | NR | TD | SHASTA | GW |
| CA4500316 | BURNEY FALLS/HAT CREEK KOA | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500342 | BURNEY MOUNTAIN GUEST RANCH | NC | NR | T2 | SHASTA | GW |
| CA4510003 | BURNEY WATER DISTRICT | C | D2 | There are no treatment plants | SHASTA | GW |
| CA5304109 | BURNT RANCH ESTATES | C | D1 | T2 | TRINITY | SW |
| CA5304105 | BURNT RANCH SCHOOL | NTNC | D1 | TD | TRINITY | GW |
| CA1000182 | BURREL UNION ELEMENTARY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA1600029 | BURRIS PARK | NC | NR | There are no treatment plants | KINGS | GW |
| CA0500104 | BURSON FULL GOSPEL CHURCH | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA1503104 | BURTCH CONSTRUCTION | NTNC | D1 | TD | KERN | GW |
| CA4100503 | BUTANO CANYON MUTUAL | C | D1 | T2 | SAN MATEO | SW |
| CA4100523 | BUTANO GIRL SCOUT CAMP | NC | NR | T2 | SAN MATEO | SW |
| CA4110029 | BUTANO STATE PARK - CSP | NC | NR | T2 | SAN MATEO | SW |
| CA1100711 | BUTTE CITY COMMUNITY S.D. | C | D1 | TD | GLENN | GW |
| CA0800603 | BUTTE COURT MOBILE HOME PARK | C | D1 | TD | DEL NORTE | GW |
| CA0400007 | BUTTE CREEK ESTATES MUTUAL WATER CO | C | D1 | TD | BUTTE | GW |
| CA0400143 | BUTTE MEADOWS CAMP | NC | NR | There are no treatment plants | BUTTE | GW |
| CA0400070 | BUTTE-GLENN COMMUNITY COLLEGE DIST | NTNC | D1 | TD | BUTTE | GW |
| CA3701184 | BUTTERFIELD RANCH | C | D1 | TD | SAN DIEGO | GW |
| CA1502695 | BUTTERMILK ACRES WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA4700559 | BUTTEVILLE UNION SCHOOL | NTNC | D1 | There are no treatment plants | SISKIYOU | GW |
| CA1510011 | BUTTONWILLOW CWD | C | D2 | TD | KERN | GW |
| CA1590016 | BUTTONWILLOW RECLAMATION PROJECT | NP | There are no treatment plants | KERN | ||
| CA1503249 | BUTTONWILLOW ROAD CIRCUIT, LP | NC | NR | There are no treatment plants | KERN | GW |
| CA0706110 | BYRON AIRPORT | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0707521 | BYRON CORNERS INC | NC | NR | T1 | CONTRA COSTA | GW |
| CA0707595 | BYRON INN | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0706049 | BYRON ROADHOUSE | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0706022 | BYRON UNITED METHODIST | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0300113 | C. G. DI ARIE VINEYARD AND WINERY | NC | NR | There are no treatment plants | AMADOR | GW |
| CA3302049 | C21 ANZA | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA1890800 | CA CORRECTIONAL CENTER - RECLAMATION | NP | There are no treatment plants | LASSEN | ||
| CA1590012 | CA CORRECTIONAL INSTITUTION AT TEHACHAPI | NP | There are no treatment plants | KERN | ||
| CA0910301 | CA STATE PARKS - D.L. BLISS | NC | D2 | T2 | EL DORADO | SW |
| CA0910305 | CA STATE PARKS - EMERALD BAY, BOAT CAMPG | NC | NR | T2 | EL DORADO | SW |
| CA0910303 | CA STATE PARKS - EMERALD BAY, EAGLE POIN | NC | NR | T2 | EL DORADO | SW |
| CA0910302 | CA STATE PARKS - EMERALD BAY, VIKINGSHOL | NC | NR | T2 | EL DORADO | SW |
| CA0210300 | CA STATE PARKS - GROVER HOT SPRINGS | NC | NR | T2 | ALPINE | SW |
| CA2700522 | CABANA HOLIDAY WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3310047 | CABAZON WATER DISTRICT | C | D2 | Operator is not required | RIVERSIDE | GW |
| CA1000665 | CABOT PACKING, LLC | NC | D1 | T1 | FRESNO | GW |
| CA4400753 | CABRILLO COLLEGE | NTNC | D1 | TD | SANTA CRUZ | GW |
| CA2702595 | CACHAGUA COMM CTR WS | NTNC | D1 | T2 | MONTEREY | SW |
| CA2701888 | CACHAGUA MUTUAL WS (#4) | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5700713 | CACHE CREEK CANYON-MIDDLE SITE | NC | D1 | TD | YOLO | GW |
| CA5790003 | CACHE CREEK RESORT | NP | D1 | There are no treatment plants | YOLO | |
| CA1700736 | CACHE CREEK VINEYARDS | NC | D1 | TD | LAKE | GW |
| CA5700700 | CACHEVILLE SERVICE DIST | C | D1 | TD | YOLO | GW |
| CA4210028 | CACHUMA PROJECT | C | D3 | There are no treatment plants | SANTA BARBARA | SWP |
| CA4200505 | CACHUMA VILLAGE | C | D1 | TD | SANTA BARBARA | GW |
| CA3601070 | CADIZ INC | NC | NR | TD | SAN BERNARDINO | GW |
| CA4000845 | CAELESTA WINERY | NC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2301008 | CAFE BEAUJOLAIS | NC | NR | There are no treatment plants | MENDOCINO | GW |
| CA3302060 | CAHUILLA MOUNTAIN MARKET & CAFE | NC | NR | TD | RIVERSIDE | GW |
| CA3600062 | CAILLIER WATER SYSTEM | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA2800111 | CAIRDEAN WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA3601169 | CAJON PASS SHELL | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2801075 | CAKEBREAD CELLAR | NTNC | D1 | Operator is not required | NAPA | GW |
| CA1700595 | CAL 20 VILLAGE AND MEADOW POINTE PARK | C | D1 | T2 | LAKE | GW |
| CA3410031 | CAL AM - ANTELOPE | C | D3 | T2 | SACRAMENTO | SWP |
| CA3410045 | CAL AM - ARDEN | C | D2 | T1 | SACRAMENTO | SWP |
| CA2010013 | CAL AM - COARSEGOLD | C | D1 | Operator is not required | MADERA | GW |
| CA5700712 | CAL AM - DUNNIGAN | C | D1 | T1 | YOLO | GW |
| CA3410023 | CAL AM - FRUITRIDGE VISTA | C | D3 | T2 | SACRAMENTO | SWP |
| CA2010014 | CAL AM - GOLDSIDE | C | D1 | TD | MADERA | GW |
| CA3410012 | CAL AM - ISLETON | C | D2 | T2 | SACRAMENTO | GW |
| CA3410013 | CAL AM - LINCOLN OAKS | C | D3 | T2 | SACRAMENTO | SWP |
| CA2410008 | CAL AM - MEADOWBROOK | C | D2 | TD | MERCED | GW |
| CA2010007 | CAL AM - OAKHURST | C | D3 | T3 | MADERA | GW |
| CA3410017 | CAL AM - PARKWAY | C | D3 | T3 | SACRAMENTO | SWP |
| CA2010012 | CAL AM - RAYMOND | C | D1 | T3 | MADERA | GW |
| CA3410027 | CAL AM - SECURITY PARK | NTNC | D1 | T1 | SACRAMENTO | SWP |
| CA3410010 | CAL AM - SUBURBAN ROSEMONT | C | D4 | T2 | SACRAMENTO | SWP |
| CA3410047 | CAL AM - WALNUT GROVE | C | D1 | T2 | SACRAMENTO | GW |
| CA3110150 | CAL AM - WEST PLACER | C | D2 | There are no treatment plants | PLACER | SWP |
| CA4300543 | CAL AM - WEST SAN MARTIN | C | D2 | TD | SANTA CLARA | GW |
| CA2710006 | CAL AM WATER COMPANY - AMBLER PARK | C | D2 | T2 | MONTEREY | GW |
| CA2701202 | CAL AM WATER COMPANY - CHUALAR | C | D2 | TD | MONTEREY | GW |
| CA2701257 | CAL AM WATER COMPANY - GARRAPATA | C | D1 | T2 | MONTEREY | GU |
| CA2710022 | CAL AM WATER COMPANY - HIDDEN HILLS | C | D2 | T1 | MONTEREY | GW |
| CA2710004 | CAL AM WATER COMPANY - MONTEREY | C | D5 | T3 | MONTEREY | GU |
| CA2702004 | CAL AM WATER COMPANY - RALPH LANE | C | D1 | TD | MONTEREY | GW |
| CA2710021 | CAL AM WATER COMPANY - TORO | C | D2 | T2 | MONTEREY | GW |
| CA5610040 | CAL AMERICAN WATER CO | C | D4 | There are no treatment plants | VENTURA | SWP |
| CA5610021 | CAL AMERICAN WATER COMPANY - PIRU | C | D2 | TD | VENTURA | GW |
| CA5610081 | CAL AMERICAN WC - LAS POSAS ESTATES | C | D2 | There are no treatment plants | VENTURA | SWP |
| CA5610010 | CAL AMERICAN WC - RIO PLAZA | C | D2 | TD | VENTURA | GW |
| CA5210800 | CAL FIRE - ISHI CONSERVATION CAMP | NTNC | D1 | TD | TEHAMA | GW |
| CA1010800 | CAL FIRE - MIRAMONTE CONSERVATION CAMP | C | D1 | TD | FRESNO | GW |
| CA5410800 | CAL FIRE - MOUNTAIN HOME CNSRVTN CAMP | C | D1 | There are no treatment plants | TULARE | GW |
| CA5210801 | CAL FIRE - SALT CREEK CONSERVATION CAMP | NTNC | D1 | T2 | TEHAMA | SW |
| CA4510800 | CAL FIRE - SUGAR PINE CONSERVATION CAMP | NTNC | D1 | TD | SHASTA | GW |
| CA1110800 | CAL FIRE - VALLEY VIEW C.C | NTNC | D1 | TD | GLENN | GW |
| CA5510852 | CAL FIRE BASELINE CONSERVATION CAMP | C | D1 | T2 | TUOLUMNE | SW |
| CA2810302 | CAL FIRE SONOMA-LAKE-NAPA UNIT HQ | NTNC | D1 | T2 | NAPA | GW |
| CA4710800 | CAL FIRE-DEADWOOD CONSERVATION CAMP | NTNC | D1 | There are no treatment plants | SISKIYOU | GW |
| CA2510800 | CAL FIRE-DEVIL'S GARDEN CAMP | NTNC | D1 | There are no treatment plants | MODOC | GW |
| CA1210800 | CAL FIRE-EEL RIVER CONSERVATION CAMP | NTNC | D1 | T2 | HUMBOLDT | SW |
| CA1210801 | CAL FIRE-HIGH ROCK CONSERVATION CAMP | NTNC | D1 | T2 | HUMBOLDT | SW |
| CA1810801 | CAL FIRE-INTERMOUNTAIN CONSERVATION CAMP | NTNC | D1 | TD | LASSEN | GW |
| CA5310800 | CAL FIRE-TRINITY RIVER CONSERVATION CAMP | NTNC | D1 | TD | TRINITY | GW |
| CA4700546 | CAL ORE MOBILE ESTATES | C | D1 | TD | SISKIYOU | GW |
| CA1990012 | CAL POLY, POMONA | NP | There are no treatment plants | LOS ANGELES | ||
| CA4000640 | CAL SHASTA CLUB | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA3601096 | CAL TRANS - C.V. KANE | NC | NR | T2 | SAN BERNARDINO | GW |
| CA1400115 | CAL TRANS - COSO JUNCTION | NC | NR | There are no treatment plants | INYO | GW |
| CA2600589 | CAL TRANS - CRESTVIEW REST AREA | NC | NR | There are no treatment plants | MONO | GW |
| CA3600044 | CAL TRANS - DESERT OASIS | NC | NR | TD | SAN BERNARDINO | GW |
| CA1400114 | CAL TRANS - DIVISION CREEK | NC | NR | TD | INYO | GW |
| CA3601098 | CAL TRANS - FENNER | NC | NR | TD | SAN BERNARDINO | GW |
| CA4210900 | CAL TRANS - GAVIOTA RSR | NC | NR | There are no treatment plants | SANTA BARBARA | SWP |
| CA3601097 | CAL TRANS - VALLEY WELLS | NC | NR | TD | SAN BERNARDINO | GW |
| CA1502029 | CAL TRANS BUTTONWILLOW SFTY RSRA | NC | NR | There are no treatment plants | KERN | GW |
| CA2400216 | CAL TRANS CHP CHOWCHILLA RIVER FACILITY | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA3790001 | CAL-AM CORONADO - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA1910186 | CAL-AM WATER COMPANY - DUARTE | C | D4 | TD | LOS ANGELES | GW |
| CA1910020 | CAL-AM WATER COMPANY - EAST PASADENA | C | D2 | TD | LOS ANGELES | GW |
| CA3710001 | CAL-AM WATER CORONADO | C | D4 | There are no treatment plants | SAN DIEGO | SWP |
| CA3302018 | CAL-TRANS WILEY WELL REST STOP | NC | NR | There are no treatment plants | RIVERSIDE | GWP |
| CA0410002 | CAL-WATER SERVICE CO.-CHICO | C | D5 | T2 | BUTTE | GW |
| CA1110002 | CAL-WATER SERVICE CO.-HAMILTON CITY | C | D2 | TD | GLENN | GW |
| CA5810001 | CAL-WATER SERVICE CO.-MARYSVILLE | C | D3 | T2 | YUBA | GW |
| CA0410005 | CAL-WATER SERVICE CO.-OROVILLE | C | D3 | T4 | BUTTE | SW |
| CA1110003 | CAL-WATER SERVICE CO.-WILLOWS | C | D2 | T2 | GLENN | GW |
| CA1910052 | CAL/AM WATER COMPANY - BALDWIN HILLS | C | D4 | T2 | LOS ANGELES | SWP |
| CA1910139 | CAL/AM WATER COMPANY - SAN MARINO | C | D4 | T2 | LOS ANGELES | SWP |
| CA0590017 | CALAVERAS COUNTY WATER DISTRICT-COPPER C | NP | There are no treatment plants | CALAVERAS | ||
| CA0590006 | CALAVERAS COUNTY WATER DISTRICT-JENNY L | NP | There are no treatment plants | CALAVERAS | ||
| CA0510002 | CALAVERAS PUD | C | D3 | T3 | CALAVERAS | SW |
| CA2000507 | CALBEE AMERICA INCORPORATED | NTNC | D1 | TD | MADERA | GW |
| CA1300635 | CALENERGY (ADMINISTRATIVE) | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1300642 | CALENERGY (ENG. & TECH.) | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1300637 | CALENERGY (SALTON SEA UNIT NO III) | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1300638 | CALENERGY (VULCAN POWER PLANT) | NTNC | D1 | T2 | IMPERIAL | SW |
| CA2700523 | CALERA CANYON HEIGHTS HOA | C | D1 | T1 | MONTEREY | GW |
| CA4300987 | CALERO COUNTY PARK | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA3702111 | CALEXICO LODGE | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1310002 | CALEXICO, CITY OF | C | D4 | T4 | IMPERIAL | SWP |
| CA0810800 | CALFIRE-ALDER CONSERVATION CAMP | NTNC | D1 | T2 | DEL NORTE | GU |
| CA5403132 | CALGREN RENEWABLE FUELS | NTNC | D1 | T2 | TULARE | GW |
| CA3601183 | CALI BURGER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1900975 | CALI LAKE RV RESORT | C | D1 | T2 | LOS ANGELES | GW |
| CA3600036 | CALICO GHOST TOWN | NTNC | D1 | T3 | SAN BERNARDINO | GW |
| CA3601036 | CALICO LAKE HOMEOWNERS | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1910022 | CALIF STATE POLYTECHNICAL UNIV - POMONA | C | D4 | T3 | LOS ANGELES | SW |
| CA1503685 | CALIFIA FARMS WATER SYSTEM | NTNC | D1 | T1 | KERN | GW |
| CA0500057 | CALIFORNIA CAVERNS | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA5403106 | CALIFORNIA CITRUS ASSOCIATION | NTNC | D1 | T2 | TULARE | GW |
| CA1510032 | CALIFORNIA CITY, CITY OF | C | D3 | TD | KERN | SWP |
| CA1900007 | CALIFORNIA CONSERVATION CAMP #14 | C | D1 | T2 | LOS ANGELES | GU |
| CA5403042 | CALIFORNIA DAIRIES INC TIPTON | NTNC | D1 | TD | TULARE | GW |
| CA1910199 | CALIFORNIA DOMESTIC WATER COMPANY | C | D4 | T5 | LOS ANGELES | GW |
| CA3901245 | CALIFORNIA FRUIT PROCESSORS | NC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5400513 | CALIFORNIA HOT SPRINGS WATER COMPANY | NC | NR | There are no treatment plants | TULARE | GW |
| CA3610850 | CALIFORNIA INSTITUTION FOR MEN | C | D3 | T4 | SAN BERNARDINO | GW |
| CA3610851 | CALIFORNIA INSTITUTION FOR WOMEN | C | D2 | T1 | SAN BERNARDINO | GWP |
| CA3902206 | CALIFORNIA ISLAMIC CENTER | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4010830 | CALIFORNIA MENS COLONY | C | D3 | T3 | SAN LUIS OBISPO | SW |
| CA4090001 | CALIFORNIA MENS COLONY - RW | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA5000527 | CALIFORNIA NUT COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5500112 | CALIFORNIA ODD FELLOW-REBEKAH | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA1105006 | CALIFORNIA OLIVE RANCH | NTNC | NR | There are no treatment plants | GLENN | GW |
| CA2701742 | CALIFORNIA ORCHARD WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2500503 | CALIFORNIA PINES C.S.D. | C | D1 | There are no treatment plants | MODOC | GW |
| CA1502034 | CALIFORNIA PORTLAND CEMENT | NTNC | D1 | TD | KERN | GW |
| CA3310800 | CALIFORNIA REHABILITATION CENTER - NORCO | C | D2 | TD | RIVERSIDE | SWP |
| CA1503440 | CALIFORNIA RESOURCES ELK HILLS | NTNC | D2 | There are no treatment plants | KERN | GWP |
| CA3410026 | CALIFORNIA STATE FAIR | C | D1 | TD | SACRAMENTO | GW |
| CA4810800 | CALIFORNIA STATE PRISON - SOLANO | C | D2 | T3 | SOLANO | SW |
| CA1010339 | CALIFORNIA STATE UNIVERSITY FRESNO | C | D3 | Operator is not required | FRESNO | GW |
| CA3601159 | CALIFORNIA STEEL INDUSTRIES | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | SWP |
| CA2400334 | CALIFORNIA SWEET POTATO GROWERS COOP | NC | NR | TD | MERCED | GW |
| CA5000586 | CALIFORNIA TRANSPLANTS LLC | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2000807 | CALIFORNIA VIPASSANA CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA5200809 | CALIFORNIA WALNUTS | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4110006 | CALIFORNIA WATER SERVICE - BEAR GULCH | C | D5 | T3 | SAN MATEO | SW |
| CA0110003 | CALIFORNIA WATER SERVICE - LIVERMORE | C | D5 | T2 | ALAMEDA | SWP |
| CA4110007 | CALIFORNIA WATER SERVICE - SAN CARLOS | C | D3 | There are no treatment plants | SAN MATEO | SWP |
| CA4110008 | CALIFORNIA WATER SERVICE - SAN MATEO | C | D4 | There are no treatment plants | SAN MATEO | SWP |
| CA3910001 | CALIFORNIA WATER SERVICE - STOCKTON | C | D4 | T2 | SAN JOAQUIN | SWP |
| CA5690005 | CALIFORNIA WATER SERVICE - WESTLAKE - RW | NP | There are no treatment plants | VENTURA | ||
| CA5610016 | CALIFORNIA WATER SERVICE CO - WESTLAKE | C | D4 | There are no treatment plants | VENTURA | SWP |
| CA1910242 | CALIFORNIA WATER SERVICE CO-LAKE HUGHES | C | D2 | T2 | LOS ANGELES | GW |
| CA1910243 | CALIFORNIA WATER SERVICE CO-LEONA VALLEY | C | D2 | T2 | LOS ANGELES | SWP |
| CA4810002 | CALIFORNIA WATER SERVICE CO. - DIXON | C | D2 | T2 | SOLANO | GW |
| CA1910033 | CALIFORNIA WATER SERVICE CO. - DOMINGUEZ | C | D5 | T2 | LOS ANGELES | SWP |
| CA1910036 | CALIFORNIA WATER SERVICE CO. - ELA | C | D5 | T3 | LOS ANGELES | SWP |
| CA1910134 | CALIFORNIA WATER SERVICE CO. - HERM/REDO | C | D5 | T1 | LOS ANGELES | SWP |
| CA1910104 | CALIFORNIA WATER SERVICE CO. - PALOS VER | C | D5 | There are no treatment plants | LOS ANGELES | SWP |
| CA1910010 | CALIFORNIA WATER SERVICE CO.-LANCASTER | C | D2 | TD | LOS ANGELES | SWP |
| CA4810701 | CALIFORNIA WATER SERVICE CO.-TRAVIS AFB | C | D2 | T1 | SOLANO | SWP |
| CA4110009 | CALIFORNIA WATER SERVICE-S SAN FRANCISCO | C | D5 | T2 | SAN MATEO | SWP |
| CA4910024 | CALIFORNIA-AMERICAN GEYSERVILLE (PUC) | C | D1 | T1 | SONOMA | GW |
| CA4910023 | CALIFORNIA-AMERICAN LARKFIELD (PUC) | C | D3 | T2 | SONOMA | GW |
| CA1900843 | CALIFORNIAN MOBILE HOME PARK | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1310800 | CALIPATRIA STATE PRISON | C | D2 | T2 | IMPERIAL | SWP |
| CA2800039 | CALISTOGA FARM WORKER CENTER | C | D1 | T2 | NAPA | GW |
| CA2810002 | CALISTOGA, CITY OF | C | D3 | T3 | NAPA | SW |
| CA3600371 | CALIZONA RV PARK | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4700503 | CALLAHAN WATER DISTRICT | C | D1 | T2 | SISKIYOU | SW |
| CA1710013 | CALLAYOMI COUNTY WATER DISTRICT | C | D2 | T2 | LAKE | GW |
| CA5610050 | CALLEGUAS MUNICIPAL WATER DIST | C | D5 | T5 | VENTURA | SW |
| CA5690006 | CALLEGUAS MWD - RW | NP | There are no treatment plants | VENTURA | ||
| CA4000805 | CALLENDER GROVE MUTUAL WATER | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA2300507 | CALPELLA COUNTY WATER DISTRICT | C | D1 | There are no treatment plants | MENDOCINO | SWP |
| CA4901030 | CALPINE (GEYSERS ADMINISTRATION CENTER) | NTNC | D1 | T2 | SONOMA | SW |
| CA4901004 | CALPINE (WEST FIELD OFFICE) | NTNC | D1 | TD | SONOMA | GW |
| CA4991030 | CALPINE GEYSERS - RECLAIMED FROM SR | NP | NA | There are no treatment plants | SONOMA | |
| CA3601061 | CALPORTLAND ORO GRANDE PLANT | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3610130 | CALTRANS - MOUNTAIN PASS JPOE CVEF | NTNC | D1 | T1 | SAN BERNARDINO | GW |
| CA4010900 | CALTRANS - SHANDON REST STOP | NC | D1 | TD | SAN LUIS OBISPO | GW |
| CA2700984 | CALTRANS CAMP ROBERTS RSRA NB | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2700983 | CALTRANS CAMP ROBERTS RSRA SB | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5401024 | CALTRANS CHESTER H. WARLOW SFTY RSRA | NC | D1 | TD | TULARE | GW |
| CA2490010 | CALTRANS ERRECA REST AREA RECYCLED WATER | NP | There are no treatment plants | MERCED | ||
| CA5401045 | CALTRANS PHILLIP S. RAINE SFTY RSRA NB | NC | D1 | There are no treatment plants | TULARE | GW |
| CA5401047 | CALTRANS PHILLIP S. RAINE SFTY RSRA SB | NC | D1 | There are no treatment plants | TULARE | GW |
| CA5401044 | CALTRANS VISALIA MAINTENANCE STATION | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA3701021 | CALTRANS, BUCKMAN SPRINGS REST AREA | NC | NR | TD | SAN DIEGO | GW |
| CA3301075 | CALTRANS, CACTUS CITY REST AREA | NC | NR | T2 | RIVERSIDE | SWP |
| CA1300583 | CALTRANS, SAND HILL REST STOP | NC | There are no treatment plants | IMPERIAL | GW | |
| CA3710050 | CALTRANS, TECATE CVEF | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3301082 | CALTRANS, WHITEWATER REST AREA | NC | NR | TD | RIVERSIDE | GW |
| CA1502422 | CALTRANS-BORON REST STOP WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA3200022 | CALTRANS-CHESTER SAFETY REST STOP | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA4700554 | CALTRANS-COLLIER REST STOP | NC | NR | T2 | SISKIYOU | SW |
| CA0800661 | CALTRANS-COLLIER TUNNEL RS | NC | NR | TD | DEL NORTE | GW |
| CA5205006 | CALTRANS-COTTONWOOD TRUCK INSP. FAC. | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5700556 | CALTRANS-DUNIGAN RS | NC | D1 | T1 | YOLO | GW |
| CA4700573 | CALTRANS-DUNSMUIR GRADE INSP. FACILITY | NTNC | NR | TD | SISKIYOU | GW |
| CA4700558 | CALTRANS-GRASS LAKE REST STOP | NC | NR | TD | SISKIYOU | GW |
| CA4500283 | CALTRANS-HILLCREST SRRA | NC | NR | There are no treatment plants | SHASTA | GW |
| CA1800531 | CALTRANS-HONEY LAKE SRRA | NC | NR | There are no treatment plants | LASSEN | GW |
| CA3200020 | CALTRANS-L.T. DAVIS RESTSTOP | NC | NR | TD | PLUMAS | GW |
| CA4500285 | CALTRANS-LAKEHEAD SRRA | NC | NR | TD | SHASTA | GW |
| CA3200009 | CALTRANS-MASSACK REST STOP | NC | NR | TD | PLUMAS | GW |
| CA0600050 | CALTRANS-MAXWELL RESTSTOPS | NC | NR | There are no treatment plants | COLUSA | GW |
| CA4500284 | CALTRANS-O'BRIEN SRRA | NC | NR | TD | SHASTA | GW |
| CA5200603 | CALTRANS-RED BLUFF REST-NB | NC | NR | TD | TEHAMA | GW |
| CA5200602 | CALTRANS-RED BLUFF REST-SB | NC | NR | TD | TEHAMA | GW |
| CA5304507 | CALTRANS-SALYER SAFETY REST STOP | NC | NR | T1 | TRINITY | GW |
| CA4500289 | CALTRANS-SHINGLETOWN SRRA | NC | NR | There are no treatment plants | SHASTA | GW |
| CA1200754 | CALTRANS-TRINIDAD NB | NC | NR | TD | HUMBOLDT | GW |
| CA4700557 | CALTRANS-WEED REST STOP | NC | NR | TD | SISKIYOU | GW |
| CA3104519 | CALTRANS-WHITMORE MAINT. STATION | NC | NR | There are no treatment plants | PLACER | GW |
| CA1100257 | CALTRANS-WILLOWS RESTSTOP-NB | NC | D1 | TD | GLENN | GW |
| CA1100258 | CALTRANS-WILLOWS RESTSTOP-SB | NC | D1 | TD | GLENN | GW |
| CA3901394 | CALVA PRODUCTS CO INC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503397 | CALVARY CHAPEL | NC | NR | There are no treatment plants | KERN | GW |
| CA3600595 | CALVARY CHAPEL CHRISTIAN CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1300661 | CALVARY CHAPEL CHURCH | NTNC | D1 | T3 | IMPERIAL | SW |
| CA3700149 | CALVARY CHAPEL JULIAN | NC | D1 | T1 | SAN DIEGO | GW |
| CA5200524 | CALVARY CHAPEL OF RED BLUFF | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA2700703 | CALVARY CHURCH INC WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA0409200 | CALVARY CONCOW CHURCH | NC | D1 | There are no treatment plants | BUTTE | GW |
| CA2000508 | CALVIN CREST CONFERENCE CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA1000639 | CALWEST RAIN - KERMAN | NTNC | NR | TD | FRESNO | GW |
| CA0310008 | CAMANCHE NORTH SHORE INC. | C | D2 | T2 | AMADOR | GW |
| CA0510012 | CAMANCHE SOUTH SHORE-EBMUD | C | D2 | T2 | CALAVERAS | SW |
| CA5610019 | CAMARILLO WATER DEPT | C | D4 | T2 | VENTURA | SWP |
| CA4010014 | CAMBRIA COMM SERVICES DIST | C | D2 | T3 | SAN LUIS OBISPO | GU |
| CA4090015 | CAMBRIA CSD - RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4200930 | CAMBRIA WINERY | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA1000238 | CAMDEN TRAILER PARK | C | D1 | T1 | FRESNO | GW |
| CA3701380 | CAMERON CORNERS | NC | D1 | T1 | SAN DIEGO | GW |
| CA0707598 | CAMINO MOBILEHOME | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA3600771 | CAMP ALANDALE | NC | NR | TD | SAN BERNARDINO | GW |
| CA1502524 | CAMP AREV | NC | NR | There are no treatment plants | KERN | GW |
| CA2800115 | CAMP BERRYESSA | NC | NR | There are no treatment plants | NAPA | GW |
| CA2900621 | CAMP BOUNTIFUL | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3600593 | CAMP CEDAR CREST | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600538 | CAMP CEDAR FALLS | NC | NR | T2 | SAN BERNARDINO | SW |
| CA3702530 | CAMP CEDAR GLEN | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4400711 | CAMP CHESEBROUGH | NC | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA2203021 | CAMP CHILNUALNA WATER SYSTEM | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA0900631 | CAMP CONCORD | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3700880 | CAMP DENVER FOX | NTNC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1502073 | CAMP EL CAMINO PINES | NC | NR | There are no treatment plants | KERN | GW |
| CA1900080 | CAMP ELK | NC | D1 | T1 | LOS ANGELES | GW |
| CA5800801 | CAMP FAR WEST RESORT | NC | D2 | T2 | YUBA | SW |
| CA0900401 | CAMP FLEMING CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900100 | CAMP FLEMING LODGE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1000170 | CAMP FRESNO WATER SYSTEM | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3600600 | CAMP GILBOA | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601139 | CAMP HEART BAR EQUESTRIAN GROUP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5500151 | CAMP JACK HAZARD | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3301097 | CAMP JOE SCHERMAN | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4100538 | CAMP JONES GULCH | C | D1 | T2 | SAN MATEO | GW |
| CA1900603 | CAMP JOSEPHO-BSA WATER | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA2000564 | CAMP KREM YOSEMITE | NC | NR | There are no treatment plants | MADERA | GW |
| CA3600536 | CAMP LA VERNE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1502042 | CAMP LAKOTA WATER SYSTEM | NC | NR | TD | KERN | GW |
| CA4600005 | CAMP LEONARD, SIERRA NV F.C. | NC | NR | There are no treatment plants | SIERRA | GW |
| CA0202547 | CAMP LIAHONA | NC | NR | There are no treatment plants | ALPINE | GW |
| CA4901109 | CAMP LIAHONA REDWOODS | NC | NR | TD | SONOMA | GW |
| CA3700118 | CAMP LOCKETT MIDDLE SCHOOL | NTNC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA0500026 | CAMP LODESTAR | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA4100529 | CAMP LOMA MAR | C | D1 | T2 | SAN MATEO | SW |
| CA0900205 | CAMP LOTUS WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3301099 | CAMP MARANATHA | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA5500031 | CAMP MATHER | NC | D1 | T2 | TUOLUMNE | SW |
| CA4500346 | CAMP MCCUMBER WATER SYSTEM | NC | D2 | TD | SHASTA | GW |
| CA4910029 | CAMP MEEKER WATER SYSTEM | C | D1 | T1 | SONOMA | GW |
| CA2300839 | CAMP MENDOCINO | NC | D1 | T2 | MENDOCINO | SW |
| CA0500022 | CAMP MENZIES | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3601141 | CAMP MORNING STAR | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0900114 | CAMP NAUVOO WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2300873 | CAMP NAVARRO | NC | D1 | TD | MENDOCINO | GU |
| CA5410022 | CAMP NELSON WATER COMPANY | C | D1 | T2 | TULARE | SW |
| CA3600587 | CAMP OSITO RANCHO | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1502315 | CAMP OWEN WATER SYSTEM | C | D1 | T1 | KERN | GW |
| CA0202548 | CAMP PEACEFUL PINES | NC | NR | There are no treatment plants | ALPINE | GW |
| CA3710700 | CAMP PENDLETON (NORTH) | C | D4 | T3 | SAN DIEGO | GW |
| CA3710702 | CAMP PENDLETON (SOUTH) | C | D4 | T3 | SAN DIEGO | GW |
| CA3790702 | CAMP PENDLETON - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA0300006 | CAMP RITCHIE | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2710705 | CAMP ROBERTS - CALIFORNIA NATIONAL GUARD | NTNC | D2 | TD | MONTEREY | GW |
| CA3301100 | CAMP RONALD MCDONALD FOR G.T. | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2900520 | CAMP ROSS RELLES | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3600777 | CAMP ROUND MEADOW | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4901105 | CAMP ROYANEH | NC | NR | TD | SONOMA | GW |
| CA2900516 | CAMP RUCKER LAKE | NC | NR | There are no treatment plants | NEVADA | GW |
| CA0900516 | CAMP SACRAMENTO | NC | NR | T2 | EL DORADO | SW |
| CA5400894 | CAMP SAN JOAQUIN | NC | NR | There are no treatment plants | TULARE | GW |
| CA4300834 | CAMP SARATOGA | C | T1 | SANTA CLARA | SW | |
| CA5601135 | CAMP SCHEIDECK | NTNC | D1 | TD | VENTURA | GW |
| CA0900505 | CAMP SHELLY | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1000010 | CAMP SIERRA | NC | NR | T2 | FRESNO | SW |
| CA5500026 | CAMP SILVER SPUR | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3600532 | CAMP SKY MEADOWS | NC | NR | TD | SAN BERNARDINO | GW |
| CA4400710 | CAMP ST FRANCIS | NC | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA1502249 | CAMP ST NICHOLAS WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA3700906 | CAMP STEVENS | C | D1 | T1 | SAN DIEGO | GW |
| CA2000560 | CAMP SUGAR PINE | NC | NR | There are no treatment plants | MADERA | GW |
| CA3600767 | CAMP TAHQUITZ | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2100568 | CAMP TAMARANCHO | NC | NR | TD | MARIN | GW |
| CA5500141 | CAMP TAWONGA | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA1502044 | CAMP TECUYA WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA3200097 | CAMP TIMBERWOLF | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1200728 | CAMP TRINIDAD RV RESORT | NC | NR | There are no treatment plants | HUMBOLDT | GW |
| CA5500368 | CAMP TUOLUMNE TRAILS | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA1900594 | CAMP VERDUGO OAKS BOYSCOUTS | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA3600064 | CAMP WATERMAN MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2203051 | CAMP WAWONA | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA5401049 | CAMP WILDERNESS | NC | NR | There are no treatment plants | TULARE | GW |
| CA1900529 | CAMP WILLIAMS-RESORT WATER | C | D1 | T1 | LOS ANGELES | GW |
| CA3702319 | CAMP WINACKA | NC | D1 | T1 | SAN DIEGO | GW |
| CA3104449 | CAMP WINTHERS | NC | NR | T2 | PLACER | SW |
| CA0300022 | CAMP WINTON | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0500055 | CAMP WOLFEBORO | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA4800727 | CAMPBELL SOUP DIXON | NTNC | D1 | There are no treatment plants | SOLANO | GW |
| CA5700554 | CAMPERS INN - RV & GOLF COURSE | C | D1 | TD | YOLO | GW |
| CA2701046 | CAMPHORA APARTMENTS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2701579 | CAMPHORA STATION WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702642 | CAMPHORA-GLORIA RD WS #01 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3700018 | CAMPO ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA3705060 | CAMPO GROUP LLC | NC | D1 | T1 | SAN DIEGO | GW |
| CA3710047 | CAMPO HILLS-COUNTY PUBLIC WORKS WASTEWTR | C | D1 | T3 | SAN DIEGO | GU |
| CA4901063 | CAMPOBELLO | NC | NR | TD | SONOMA | GW |
| CA1000580 | CAMPOS BROS. FARMS | NTNC | D1 | TD | FRESNO | GW |
| CA1900089 | CAMPS MUNZ AND MENDENHALL | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA5800924 | CAMPTONVILLE COMMUNITY SERV DIST | C | D1 | T2 | YUBA | SW |
| CA5610063 | CAMROSA WATER DISTRICT | C | D4 | T3 | VENTURA | SWP |
| CA5690011 | CAMROSA WATER DISTRICT - RW | NP | There are no treatment plants | VENTURA | ||
| CA2790001 | CANADA WOODS RECLAMATION COMPANY | NP | There are no treatment plants | MONTEREY | ||
| CA2702588 | CANADA WOODS WC | C | D2 | T2 | MONTEREY | GU |
| CA0900112 | CANDLELIGHT VILLAGE MUTUAL WATER CO. | C | NR | There are no treatment plants | EL DORADO | GW |
| CA3400418 | CANNERY LANDING | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4910022 | CANON MANOR WATER SYSTEM | C | D1 | T1 | SONOMA | GW |
| CA2000594 | CANTINA WATER SYSTEM | NC | NR | There are no treatment plants | MADERA | GW |
| CA1009051 | CANTUA CREEK VINEYARDS, IV, LLC. | C | D1 | There are no treatment plants | FRESNO | GW |
| CA4500093 | CANYON CREEK MHP | C | D1 | TD | SHASTA | GW |
| CA5700608 | CANYON CREEK RESORT | NC | D1 | T3 | YOLO | SW |
| CA1900162 | CANYON CREEK SPORTS COMPLEX | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4000230 | CANYON CREST MUTUAL BENEFIT WC | C | D1 | There are no treatment plants | SAN LUIS OBISPO | SWP |
| CA1000600 | CANYON FEED & SUPPLY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1500443 | CANYON MEADOWS MUTUAL WATER | C | D1 | T2 | KERN | GW |
| CA3200152 | CANYON RANCH RV PARK | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3000759 | CANYON RV PARK | NTNC | D1 | TD | ORANGE | GW |
| CA0707620 | CANYON SCHOOL | NTNC | D1 | T1 | CONTRA COSTA | GW |
| CA1100527 | CAPAY JOINT UNION ELEM. SCHOOL | NTNC | D1 | TD | GLENN | GW |
| CA5700737 | CAPAY OPEN SPACE PARK | NC | NR | There are no treatment plants | YOLO | GW |
| CA2800543 | CAPELL VALLEY ESTATES | C | D1 | T2 | NAPA | SW |
| CA4901257 | CAPITAL LUMBER COMPANY | NTNC | D1 | TD | SONOMA | GW |
| CA0202546 | CAPLES LAKE CG | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202506 | CAPLES LAKE RESORT | NC | NR | There are no treatment plants | ALPINE | GW |
| CA2702322 | CAPTAIN COOPER SCHOOL WS | NTNC | D1 | T2 | MONTEREY | GU |
| CA2702296 | CAPURRO & SON WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA1400067 | CARDINAL VILLAGE RESORT | NC | NR | There are no treatment plants | INYO | GW |
| CA2801028 | CARDINALE ESTATE | NTNC | D1 | TD | NAPA | GW |
| CA3900921 | CARDOZA VILLA CORP | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3200153 | CARIBOU CROSSROADS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3900568 | CARIBOU MOBILE PARK PWS | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3710045 | CARLSBAD DESALINATION PLANT | C | NR | T5 | SAN DIEGO | SW |
| CA3710005 | CARLSBAD MWD | C | D5 | T2 | SAN DIEGO | SWP |
| CA3790005 | CARLSBAD MWD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA2790007 | CARMEL AREA WASTEWATER DISTRICT | NP | There are no treatment plants | MONTEREY | ||
| CA2701297 | CARMEL BY THE RIVER RV PARK WS | NC | NR | TD | MONTEREY | GW |
| CA2701254 | CARMEL RIVIERA MWC | C | D1 | T2 | MONTEREY | SW |
| CA2790006 | CARMEL VALLEY RANCH | NP | There are no treatment plants | MONTEREY | ||
| CA2702503 | CARMEL VALLEY TENNIS CAMP WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3901305 | CARMELO INDUSTRIAL PARK | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900578 | CARMET BY THE SEA WATER COMPANY | C | D1 | T2 | SONOMA | GU |
| CA3410004 | CARMICHAEL WATER DISTRICT | C | D3 | T5 | SACRAMENTO | GU |
| CA3910301 | CARNEGIE SVRA | NC | D1 | TD | SAN JOAQUIN | GW |
| CA4900909 | CARNEROS DELI | NTNC | D1 | T1 | SONOMA | GW |
| CA2890005 | CARNEROS INN | NP | There are no treatment plants | NAPA | ||
| CA4901247 | CARNEROS WAREHOUSING | NTNC | D1 | T1 | SONOMA | GW |
| CA4000847 | CARPENTER WINERY | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4210001 | CARPINTERIA VALLEY WATER DISTRICT | C | D3 | T1 | SANTA BARBARA | SWP |
| CA1100101 | CARRIERE FAMILY FARMS | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA4000732 | CARRISA PLAINS ELEMENTARY | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA3400434 | CARSON LANDSCAPE INDUSTRIES | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA0202515 | CARSON RIVER RESORT | NC | NR | There are no treatment plants | ALPINE | GW |
| CA1400027 | CARTAGO MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA1010039 | CARUTHERS COMM SERV DIST | C | D2 | T2 | FRESNO | GW |
| CA1000468 | CARUTHERS RAISIN PACKING CO | NTNC | D1 | TD | FRESNO | GW |
| CA3301107 | CARVER TRACT MUTUAL WATER COMP | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA0400169 | CASA DE ALMA EL CAMERON PELAO | NC | NR | TD | BUTTE | GW |
| CA5000060 | CASA DE AMIGOS MANUFACTURED HOUSING COMM | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3500511 | CASA DE FRUTA ORCHARDS | C | D1 | TD | SAN BENITO | GW |
| CA4300611 | CASA DE FRUTA WATER SYSTEM | C | D1 | T1 | SANTA CLARA | GW |
| CA1900717 | CASA DULCE ESTATES | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA2000547 | CASA GRANDE MOTEL | NC | NR | There are no treatment plants | MADERA | GW |
| CA1510004 | CASA LOMA WATER CO, INC. | C | D1 | There are no treatment plants | KERN | GW |
| CA0707594 | CASA MEDANOS WATER SYSTEM | C | D1 | TD | CONTRA COSTA | GW |
| CA5700518 | CASA RUIZ | NC | NR | There are no treatment plants | YOLO | GW |
| CA5500104 | CASCADE ESTATES | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA0900523 | CASCADE MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4500012 | CASCADE RACQUET CLUB MUTUAL WATER | C | D1 | TD | SHASTA | GW |
| CA2000509 | CASCADEL MUTUAL WATER SYSTEM | C | D1 | T1 | MADERA | GW |
| CA5403047 | CASILLAS WATER SYSTEM | NC | NR | There are no treatment plants | TULARE | GW |
| CA4900748 | CASINI RANCH CAMPGROUND | C | NR | TD | SONOMA | GW |
| CA5610024 | CASITAS MUNICIPAL WATER DIST | C | D5 | T5 | VENTURA | SW |
| CA5601104 | CASITAS MUTUAL WATER COMPANY | C | D1 | TD | VENTURA | SWP |
| CA4200870 | CASMALIA COMMUNITY SERVICES DISTRICT | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2300736 | CASPAR BEACH RV PARK | NC | D1 | T1 | MENDOCINO | GW |
| CA2300610 | CASPAR SOUTH SERVICE COMPANY | C | D1 | T2 | MENDOCINO | GU |
| CA3000940 | CASPERS REGIONAL WILDERNESS PARK | NC | NR | TD | ORANGE | GW |
| CA4500173 | CASSEL PARK MUTUAL WATER CO | C | D1 | TD | SHASTA | GW |
| CA4400904 | CASSIN RANCH (DRISCOLL'S) | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4901412 | CAST ESTATE VINEYARDS & CELLARS | NC | NR | T1 | SONOMA | GW |
| CA1990017 | CASTAIC LAKE WATER AGENCY | NP | There are no treatment plants | LOS ANGELES | ||
| CA2800043 | CASTELLO DI AMOROSA | NTNC | D1 | Operator is not required | NAPA | GW |
| CA1200546 | CASTERLIN SCHOOL | NTNC | D1 | TD | HUMBOLDT | GW |
| CA2410700 | CASTLE AIRPORT | C | D2 | TD | MERCED | GW |
| CA3601082 | CASTLE MOUNTAIN MINE | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA0105008 | CASTLEWOOD DOMESTIC WATER SYSTEM | C | D1 | There are no treatment plants | ALAMEDA | GWP |
| CA5800832 | CASTLEWOOD MOBILE HOME PARK | C | D1 | T1 | YUBA | GW |
| CA2710005 | CASTROVILLE COMMUNITY SERVICES DISTRICT | C | D2 | T2 | MONTEREY | GW |
| CA4290004 | CATE SCHOOL - RW | NP | There are no treatment plants | SANTA BARBARA | ||
| CA4400652 | CATHEDRAL HILLS MWC, INC | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA0900511 | CATHEDRAL WATER ASSOCIATION | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4400642 | CATHEDRAL WOOD MUTUAL WATER COMPANY | C | D1 | T2 | SANTA CRUZ | SW |
| CA4901106 | CATHOLIC CHARITIES - CYO CAMP | NC | NR | T2 | SONOMA | SW |
| CA4810038 | CAYMUS CORDELIA WINERY | NTNC | D1 | TD | SOLANO | GW |
| CA2801076 | CAYMUS VINEYARDS | NTNC | D1 | Operator is not required | NAPA | GW |
| CA4010006 | CAYUCOS BEACH MUTUAL WATER COMPANY | C | D1 | TD | SAN LUIS OBISPO | SWP |
| CA4090019 | CAYUCOS SANITARY DISTRICT | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4901107 | CAZADERO PERFORMING ARTS CAMP | NC | NR | T1 | SONOMA | GW |
| CA4900508 | CAZADERO WATER COMPANY, INC. (PUC) | C | D1 | T1 | SONOMA | GU |
| CA3901282 | CBUSO DBA WOODBRIDGE WINERY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2000659 | CBUSO MISSION BELL | NTNC | D1 | T1 | MADERA | GW |
| CA1009232 | CC FARMS, LLC. | C | D1 | T2 | FRESNO | SW |
| CA1510800 | CCI - TEHACHAPI | C | D2 | T1 | KERN | GW |
| CA0510017 | CCWD - COPPER COVE | C | D3 | T3 | CALAVERAS | SW |
| CA0510016 | CCWD - EBBETTS PASS | C | D4 | T3 | CALAVERAS | SW |
| CA0510006 | CCWD - JENNY LIND | C | D4 | T4 | CALAVERAS | SW |
| CA0510004 | CCWD - SHEEP RANCH | C | D1 | T2 | CALAVERAS | SW |
| CA0510019 | CCWD - WALLACE | C | D1 | T2 | CALAVERAS | GW |
| CA0510005 | CCWD - WEST POINT | C | D2 | T3 | CALAVERAS | SW |
| CA0590016 | CCWD-FOREST MEADOWS RECYCLING FACILITY | NP | There are no treatment plants | CALAVERAS | ||
| CA0710011 | CCWD/BRENTWOOD WTP | C | NR | T5 | CONTRA COSTA | SWP |
| CA1090010 | CDC COALINGA SECURE TREATMENT FACILITY | NP | There are no treatment plants | FRESNO | ||
| CA5510851 | CDCR - SIERRA CONSERVATION CENTER | C | D2 | T3 | TUOLUMNE | SW |
| CA3910803 | CDCR CALIFORNIA HEALTH CARE FACILITY | C | D2 | TD | SAN JOAQUIN | SWP |
| CA1805004 | CDCR-HIGH DESERT STATE PRISON | C | D2 | T2 | LASSEN | GW |
| CA2210851 | CDF & FP - MT. BULLION | C | D1 | TD | MARIPOSA | GW |
| CA3610800 | CDF - OAK GLEN CONSERVATION CAMP | C | D1 | TD | SAN BERNARDINO | GW |
| CA1410800 | CDF - OWENS VALLEY CONSERVATION CAMP | C | D1 | There are no treatment plants | INYO | GW |
| CA3610801 | CDF - PILOT ROCK CONSERVATION CAMP | C | D1 | T2 | SAN BERNARDINO | GW |
| CA2310801 | CDF-CHAMBERLAIN CREEK CONSERVATION CAMP | NTNC | D1 | T2 | MENDOCINO | SW |
| CA1710800 | CDF-KONOCTI CONSERVATION CAMP NO. 27 | C | D1 | T2 | LAKE | GW |
| CA2310800 | CDF-PARLIN FORK CONSERVATION CAMP | NTNC | D1 | T2 | MENDOCINO | SW |
| CA3610131 | CDFA-MOUNTAIN PASS JPOE AIS | NC | D1 | TD | SAN BERNARDINO | GW |
| CA2702226 | CDFW ELKHORN SLOUGH ECOLOGICAL RESERVE | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2410303 | CDPR FOUR RIVERS DISTRICT-BASALT | NC | D1 | T2 | MERCED | SW |
| CA2410304 | CDPR FOUR RIVERS DISTRICT-SAN LUIS CREEK | NC | D1 | T2 | MERCED | SW |
| CA2410302 | CDPR-HATFIELD | NC | NR | There are no treatment plants | MERCED | GW |
| CA2410301 | CDPR-MCCONNELL | NC | NR | There are no treatment plants | MERCED | GW |
| CA2410305 | CDPR-SECTOR WIDE POTABLE WATER TANKS | NC | D1 | There are no treatment plants | MERCED | SWP |
| CA5000590 | CEBRO FROZEN FOODS (EH) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4500063 | CEDAR CREEK MOBILEHOME PARK | C | D1 | TD | SHASTA | GW |
| CA3600586 | CEDAR LAKE CAMP INC | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2210900 | CEDAR LODGE RESORT | C | D1 | T3 | MARIPOSA | GW |
| CA5400921 | CEDAR SLOPE MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | TULARE | GW |
| CA2000538 | CEDAR VALLEY MUTUAL WATER CO | C | D1 | TD | MADERA | GW |
| CA3610011 | CEDARPINES PARK MWC | C | D2 | T1 | SAN BERNARDINO | SWP |
| CA2510002 | CEDARVILLE COUNTY WATER DIST. | C | D1 | There are no treatment plants | MODOC | GW |
| CA5700729 | CEJA-REYES INC | NC | NR | There are no treatment plants | YOLO | GW |
| CA3601130 | CEMEX CALIF CEMENT LLC AV | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601062 | CEMEX CALIF CEMENT LLC VV | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000831 | CENTER OF EFFORT WINERY | NC | D1 | TD | SAN LUIS OBISPO | GW |
| CA1300627 | CENTER OF THE WORLD | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA3600070 | CENTER WATER CO | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4510011 | CENTERVILLE C.S.D. | C | D2 | There are no treatment plants | SHASTA | SWP |
| CA1000104 | CENTERVILLE SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1310801 | CENTINELA STATE PRISON | C | D2 | T3 | IMPERIAL | SWP |
| CA1995000 | CENTRAL BASIN MUNICIPAL WATER DISTRICT | NP | There are no treatment plants | LOS ANGELES | ||
| CA2702490 | CENTRAL BAY HIGH SCHOOL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1000560 | CENTRAL CA ALMOND GROWERS ASSN | NC | NR | TD | FRESNO | GW |
| CA2010800 | CENTRAL CA WOMENS FACILITY | C | D2 | T1 | MADERA | GW |
| CA2000517 | CENTRAL CAMP WATER COMPANY | NC | NR | There are no treatment plants | MADERA | GW |
| CA4210030 | CENTRAL COAST WATER AUTHORITY | C | D5 | T5 | SANTA BARBARA | SW |
| CA0790002 | CENTRAL CONTRA COSTA SANITARY DISTRICT | NP | There are no treatment plants | CONTRA COSTA | ||
| CA2090006 | CENTRAL GREEN RIVER RANCH ESTATES | NP | There are no treatment plants | MADERA | ||
| CA1000217 | CENTRAL HIGH SCHOOL WEST | NTNC | D1 | TD | FRESNO | GW |
| CA2090009 | CENTRAL POINT BUSINESS PARK -RW | NP | There are no treatment plants | MADERA | ||
| CA3901486 | CENTRAL VALLEY BAPTIST CHURCH WS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1504006 | CENTRAL VALLEY EGGS, LLC | NTNC | D1 | T2 | KERN | GW |
| CA1600050 | CENTRAL VALLEY MEAT CO INC | NTNC | D1 | T1 | KINGS | GW |
| CA4410018 | CENTRAL WATER DISTRICT | C | D3 | TD | SANTA CRUZ | GW |
| CA3900579 | CENTURY MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000109 | CERES UNIFIED/WESTPORT SCHOOL | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5090028 | CERES, CITY OF | NP | There are no treatment plants | STANISLAUS | ||
| CA5010028 | CERES, CITY OF | C | D4 | T3 | STANISLAUS | SWP |
| CA1910019 | CERRITOS - CITY, WATER DEPT. | C | D5 | T2 | LOS ANGELES | SWP |
| CA1995005 | CERRITOS, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA4000757 | CERRO ALTO CAMPGROUND | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2000681 | CERTAINTEED LLC | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3200053 | CHALET VIEW LODGE | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA2600627 | CHALFANT COMMUNITY CENTER | NC | NR | There are no treatment plants | MONO | GW |
| CA2600699 | CHALFANT VALLEY WEST M.W.C. | C | D1 | There are no treatment plants | MONO | GW |
| CA4200885 | CHALK HILL ESTATES HOA | C | D1 | T1 | SANTA BARBARA | GW |
| CA4901390 | CHALK HILL WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA3600071 | CHAMISAL MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000851 | CHAMISAL VINEYARDS | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA2701659 | CHAMISAL WA | NTNC | D1 | TD | MONTEREY | GW |
| CA1502670 | CHANAC CREEK MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA0500099 | CHANGING ECHOES | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA5610039 | CHANNEL ISLANDS BEACH CSD | C | D2 | There are no treatment plants | VENTURA | SWP |
| CA5610500 | CHANNEL ISLANDS NATIONAL PARK | NC | NR | TD | VENTURA | GW |
| CA3301947 | CHAPEL IN THE PINES | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2800051 | CHAPPELLET WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901444 | CHAR VALE VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA3901320 | CHARGIN-SOSSAMON WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000535 | CHARITY WAY WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1400004 | CHARLES BROWN WATER COMPANY | C | D1 | T1 | INYO | GW |
| CA2400091 | CHARLESTON SCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA4901360 | CHATEAU DIANA | NC | NR | T1 | SONOMA | GW |
| CA2801004 | CHATEAU MONTELENA WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA5000101 | CHATOM SCHOOL (EH) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4300517 | CHEMEKETA PARK MUTUAL WATER COMPANY | C | D1 | T2 | SANTA CLARA | SW |
| CA5000482 | CHEMURGIC AGRICULTURAL CHEMICALS, INC. | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3902194 | CHEROKEE MEMORIAL PARK INC WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000442 | CHERRY AUCTION | NC | D1 | There are no treatment plants | FRESNO | GW |
| CA3900983 | CHERRY LANE TRAILER PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3301245 | CHERRY VALLEY RANCH LLC | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301114 | CHERRY VALLEY WATER COMPANY | C | D1 | TD | RIVERSIDE | GW |
| CA3210009 | CHESTER PUBLIC U.D. | C | D2 | There are no treatment plants | PLUMAS | GW |
| CA2700634 | CHETMOORE ACRES WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5403219 | CHEVRON LINDSAY | NC | NR | There are no treatment plants | TULARE | GW |
| CA2701171 | CHEVRON OIL FIELD WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1502561 | CHEVRON SAN JOAQUIN | NTNC | D1 | T2 | KERN | SWP |
| CA5590005 | CHICKEN RANCH RANCHERIA | NP | There are no treatment plants | TUOLUMNE | ||
| CA0400166 | CHICO EASTSIDE LITTLE LEAGUE | NC | NR | There are no treatment plants | BUTTE | GW |
| CA0409184 | CHICO GRANGE #486 | NC | NR | There are no treatment plants | BUTTE | GW |
| CA0400160 | CHICO ROD & GUN CLUB | NC | NR | There are no treatment plants | BUTTE | GW |
| CA4901382 | CHILDKIND LAGUNA PRESCHOOL | NTNC | D1 | T1 | SONOMA | GW |
| CA2801077 | CHIMNEY ROCK WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA1200751 | CHIMNEY TREE | NC | NR | T2 | HUMBOLDT | SW |
| CA0901222 | CHINA FLAT CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1500563 | CHINA LAKE ACRES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA1503678 | CHINA LAKE NAVAL AIR - SOUTH RANGE | NTNC | D1 | T2 | KERN | GW |
| CA1510703 | CHINA LAKE NAVAL AIR WEAPONS STATION | C | D3 | T2 | KERN | GW |
| CA1000171 | CHINA PEAK MOUNTAIN RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5500148 | CHINESE CAMP SCHOOL | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA3610075 | CHINO BASIN DESALTER AUTH. - DESALTER 1 | C | D4 | T5 | SAN BERNARDINO | GW |
| CA3310083 | CHINO BASIN DESALTER AUTH. - DESALTER 2 | C | D4 | T5 | RIVERSIDE | GW |
| CA3610036 | CHINO HILLS, CITY OF | C | D5 | T2 | SAN BERNARDINO | SWP |
| CA3610012 | CHINO, CITY OF | C | D5 | T4 | SAN BERNARDINO | SWP |
| CA0800622 | CHINOOK WATER SYSTEM | NC | NR | There are no treatment plants | DEL NORTE | GW |
| CA4300757 | CHIRI SWEET WATER COMPANY | C | There are no treatment plants | SANTA CLARA | GW | |
| CA3301115 | CHIRIACO SUMMIT WATER DIST. | C | D1 | T2 | RIVERSIDE | SWP |
| CA4200963 | CHISAN ORCHIDS NURSERY | NTNC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4300991 | CHITACTAC-ADAMS COUNTY PARK | NC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA1500599 | CHOCTAW VALLEY MUTUAL WATER CO. | C | D1 | T1 | KERN | GW |
| CA1000534 | CHOOLJIAN BROS PACKING CO | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA4010030 | CHORRO VALLEY PIPELINE - SLO COUNTY | C | D3 | There are no treatment plants | SAN LUIS OBISPO | SWP |
| CA2010001 | CHOWCHILLA CITY WATER DEPT | C | D3 | TD | MADERA | GW |
| CA2000942 | CHOWCHILLA CONG OF J W S | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000808 | CHOWCHILLA REC AREA EASTMAN LAKE | NC | NR | TD | MADERA | GW |
| CA0110800 | CHP - MISSION GRADE SCALES | NC | NR | TD | ALAMEDA | GW |
| CA2600564 | CHRIS FLAT CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA5500364 | CHRISTIAN BERETS CONF. CENTER | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2900541 | CHRISTIAN ENCOUNTER MINISTRIES | C | D1 | There are no treatment plants | NEVADA | GW |
| CA1503646 | CHRISTIAN LIFE ASSEMBLY WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1300657 | CHRISTIAN SERVICE CENTER OF SENATOR WASH | NC | NR | T1 | IMPERIAL | GW |
| CA3110034 | CHRISTIAN VALLEY PARK CSD | C | D2 | T3 | PLACER | SW |
| CA4000642 | CHRISTMAS COVE | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA4300957 | CHRISTOPHER RANCH L.L.C. | NTNC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA3310802 | CHUCKAWALLA VALLEY STATE PRISON | C | D3 | T3 | RIVERSIDE | GW |
| CA3301140 | CHUCKWALLA VALLEY RACEWAY WATER SYSTEM | NC | NR | T1 | RIVERSIDE | GW |
| CA2090005 | CHUKCHANSI INDIAN HOTEL-CASINO | NP | There are no treatment plants | MADERA | ||
| CA4290005 | CHUMASH CASINO RESORT - RW | NP | There are no treatment plants | SANTA BARBARA | ||
| CA5102009 | CHURCH OF GLAD TIDINGS | NTNC | D1 | T1 | SUTTER | GW |
| CA3901399 | CHURCH OF JESUS CHRIST OF LDS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3400460 | CHURCH OF JESUS CHRIST OF LDS (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5200714 | CHURCH OF LATTER DAY SAINTS | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA3600704 | CHURCH OF SPIRITUAL TECHNOLOGY | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2702050 | CHURCH OF THE GOOD SHEPHERD WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1000457 | CHURCH OF THE REDEEMER | NC | NR | T1 | FRESNO | GW |
| CA4500231 | CHURN CREEK GOLF COURSE | NC | NR | TD | SHASTA | GW |
| CA3700025 | CIBBETTS FLATS CAMPGROUND | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3301699 | CINCO POSES CAMP - USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4900716 | CINNABAR ELEMENTARY SCHOOL | NTNC | D1 | T1 | SONOMA | GW |
| CA4300986 | CINNABAR HILLS GOLF CLUB | NTNC | D1 | T2 | SANTA CLARA | SWP |
| CA3107350 | CIOTTI CELLARS | NC | NR | There are no treatment plants | PLACER | GW |
| CA4200562 | CIRCLE BAR B GUEST RANCH | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5403153 | CIRCLE J - NORRIS RANCH | NC | NR | There are no treatment plants | TULARE | GW |
| CA1000677 | CIRCLE K RANCH | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA2800521 | CIRCLE OAKS WATER DISTRICT | C | D1 | T2 | NAPA | SW |
| CA4200818 | CIRCLE V RANCH CAMP | NC | D1 | There are no treatment plants | SANTA BARBARA | GU |
| CA3100008 | CISCO GROVE HOLDINGS | NC | NR | There are no treatment plants | PLACER | GW |
| CA3410006 | CITRUS HEIGHTS WATER DISTRICT | C | D4 | TD | SACRAMENTO | SWP |
| CA1995019 | CITY OF SANTA CLARITA | NP | There are no treatment plants | LOS ANGELES | ||
| CA2300731 | CITY OF 10,000 BUDDHAS | C | D1 | T1 | MENDOCINO | GW |
| CA1910001 | CITY OF ALHAMBRA | C | D4 | T3 | LOS ANGELES | SWP |
| CA2510001 | CITY OF ALTURAS | C | D2 | There are no treatment plants | MODOC | GW |
| CA2890003 | CITY OF AMERICAN CANYON-RECYCLED WATER | NP | There are no treatment plants | NAPA | ||
| CA3010001 | CITY OF ANAHEIM | C | D5 | T5 | ORANGE | SW |
| CA3090012 | CITY OF ANAHEIM RECYCLED WATER SYSTEM | NP | N/A | There are no treatment plants | ORANGE | |
| CA4510001 | CITY OF ANDERSON | C | D3 | TD | SHASTA | GW |
| CA0710001 | CITY OF ANTIOCH | C | D5 | T5 | CONTRA COSTA | SW |
| CA1910003 | CITY OF ARCADIA | C | D4 | T3 | LOS ANGELES | GW |
| CA4010001 | CITY OF ARROYO GRANDE UTILITIES DIVISION | C | D4 | T2 | SAN LUIS OBISPO | SWP |
| CA1590008 | CITY OF ARVIN | NP | There are no treatment plants | KERN | ||
| CA2410001 | CITY OF ATWATER | C | D3 | T2 | MERCED | GW |
| CA1690001 | CITY OF AVENAL | NP | There are no treatment plants | KINGS | ||
| CA1590005 | CITY OF BAKERSFIELD | NP | There are no treatment plants | KERN | ||
| CA3690003 | CITY OF BARSTOW | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3390104 | CITY OF BEAUMONT PLANT NO. 1 | NP | There are no treatment plants | RIVERSIDE | ||
| CA1910108 | CITY OF BELL GARDENS | C | D2 | T2 | LOS ANGELES | SWP |
| CA4890003 | CITY OF BENICIA | NP | There are no treatment plants | SOLANO | ||
| CA4810001 | CITY OF BENICIA | C | D3 | T4 | SOLANO | SW |
| CA0410001 | CITY OF BIGGS | C | D2 | TD | BUTTE | GW |
| CA3010002 | CITY OF BREA | C | D4 | There are no treatment plants | ORANGE | SWP |
| CA0790005 | CITY OF BRENTWOOD RECYCLING PROJECT | NP | There are no treatment plants | CONTRA COSTA | ||
| CA4110002 | CITY OF BRISBANE | C | D2 | There are no treatment plants | SAN MATEO | SWP |
| CA4210018 | CITY OF BUELLTON WATER DIVISION | C | D2 | T1 | SANTA BARBARA | SWP |
| CA3010003 | CITY OF BUENA PARK | C | D5 | TD | ORANGE | SWP |
| CA4110003 | CITY OF BURLINGAME | C | D3 | There are no treatment plants | SAN MATEO | SWP |
| CA1590027 | CITY OF CALIFORNIA CITY | NP | There are no treatment plants | KERN | ||
| CA2890002 | CITY OF CALISTOGA WASTEWATER RECLAMATION | NP | There are no treatment plants | NAPA | ||
| CA5690012 | CITY OF CAMARILLO RW RETAILER | NP | There are no treatment plants | VENTURA | ||
| CA4290006 | CITY OF CARPINTERIA RECYCLED WATER | NP | There are no treatment plants | SANTA BARBARA | ||
| CA3690006 | CITY OF CHINO | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3690008 | CITY OF CHINO HILLS | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA1090014 | CITY OF CLOVIS | NP | There are no treatment plants | FRESNO | ||
| CA1010003 | CITY OF CLOVIS | C | D4 | T5 | FRESNO | SW |
| CA1090019 | CITY OF COALINGA RECYCLED WATER | NP | There are no treatment plants | FRESNO | ||
| CA0610002 | CITY OF COLUSA | C | D2 | TD | COLUSA | GW |
| CA0690002 | CITY OF COLUSA RECYCLED WATER | NP | There are no treatment plants | COLUSA | ||
| CA5210001 | CITY OF CORNING | C | D2 | TD | TEHAMA | GW |
| CA3790120 | CITY OF CORONADO RW | NP | There are no treatment plants | SAN DIEGO | ||
| CA0810001 | CITY OF CRESCENT CITY | C | D3 | T1 | DEL NORTE | GW |
| CA0890001 | CITY OF CRESCENT CITY - RW | NP | There are no treatment plants | DEL NORTE | ||
| CA4310018 | CITY OF CUPERTINO | C | D5 | TD | SANTA CLARA | SWP |
| CA4190001 | CITY OF DALY CITY | NP | There are no treatment plants | SAN MATEO | ||
| CA4110013 | CITY OF DALY CITY | C | D5 | T3 | SAN MATEO | SWP |
| CA5710001 | CITY OF DAVIS | C | D4 | T2 | YOLO | SWP |
| CA1590004 | CITY OF DELANO | NP | There are no treatment plants | KERN | ||
| CA5490015 | CITY OF DINUBA - RECLAMATION OF WW | NP | There are no treatment plants | TULARE | ||
| CA4810009 | CITY OF DIXON | C | D3 | T1 | SOLANO | GW |
| CA2410002 | CITY OF DOS PALOS | C | D2 | T3 | MERCED | SW |
| CA1990023 | CITY OF DOWNEY | NP | There are no treatment plants | LOS ANGELES | ||
| CA4110024 | CITY OF EAST PALO ALTO | C | D3 | T2 | SAN MATEO | SWP |
| CA5490001 | CITY OF EXETER WASTEWATER PLANT | NP | There are no treatment plants | TULARE | ||
| CA4810003 | CITY OF FAIRFIELD | C | D4 | T5 | SOLANO | SW |
| CA1296015 | CITY OF FERNDALE | NP | There are no treatment plants | HUMBOLDT | ||
| CA5690008 | CITY OF FILLMORE WWTP | NP | There are no treatment plants | VENTURA | ||
| CA3010069 | CITY OF FOUNTAIN VALLEY | C | D5 | T2 | ORANGE | SWP |
| CA1010006 | CITY OF FOWLER | C | D2 | There are no treatment plants | FRESNO | GW |
| CA1010007 | CITY OF FRESNO | C | D4 | T5 | FRESNO | SW |
| CA3010010 | CITY OF FULLERTON | C | D5 | T2 | ORANGE | SWP |
| CA3490004 | CITY OF GALT WW TREATMENT PLANT | NP | There are no treatment plants | SACRAMENTO | ||
| CA3010062 | CITY OF GARDEN GROVE | C | D4 | T3 | ORANGE | SWP |
| CA4310004 | CITY OF GILROY | C | D4 | T1 | SANTA CLARA | GW |
| CA2910001 | CITY OF GRASS VALLEY | C | D2 | T3 | NEVADA | SW |
| CA2990002 | CITY OF GRASS VALLEY WWTP | NP | There are no treatment plants | |||
| CA0410004 | CITY OF GRIDLEY | C | D2 | T1 | BUTTE | GW |
| CA4010004 | CITY OF GROVER BEACH PUBLIC WORKS DEPT | C | D3 | T2 | SAN LUIS OBISPO | SW |
| CA2490001 | CITY OF GUSTINE | NP | There are no treatment plants | MERCED | ||
| CA2410003 | CITY OF GUSTINE | C | D2 | Operator is not required | MERCED | GW |
| CA1690005 | CITY OF HANFORD | NP | There are no treatment plants | KINGS | ||
| CA1690002 | CITY OF HANFORD | NP | There are no treatment plants | KINGS | ||
| CA0190006 | CITY OF HAYWARD | NP | There are no treatment plants | ALAMEDA | ||
| CA0110006 | CITY OF HAYWARD | C | D5 | There are no treatment plants | ALAMEDA | SWP |
| CA3010053 | CITY OF HUNTINGTON BEACH | C | D5 | T2 | ORANGE | SWP |
| CA1090021 | CITY OF HURON - RECYCLED WATER | NP | There are no treatment plants | FRESNO | ||
| CA1910029 | CITY OF INDUSTRY WATERWORKS SYSTEMS | C | D2 | Operator is not required | LOS ANGELES | GW |
| CA0390901 | CITY OF IONE/ARSA/CASTLE OAKS RECYCLE | NP | There are no treatment plants | AMADOR | ||
| CA0310001 | CITY OF JACKSON | C | D2 | There are no treatment plants | AMADOR | SWP |
| CA1090006 | CITY OF KERMAN - RECLAMATION | NP | There are no treatment plants | FRESNO | ||
| CA3010018 | CITY OF LA HABRA | C | D5 | T2 | ORANGE | SWP |
| CA3010100 | CITY OF LA PALMA | C | D3 | T2 | ORANGE | SWP |
| CA1790001 | CITY OF LAKEPORT - RECLAMATION PROJECT | NP | There are no treatment plants | LAKE | ||
| CA3910015 | CITY OF LATHROP | C | D3 | T3 | SAN JOAQUIN | SWP |
| CA3990015 | CITY OF LATHROP - RECLAMATION | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA1690004 | CITY OF LEMOORE | NP | There are no treatment plants | KINGS | ||
| CA3110004 | CITY OF LINCOLN | C | D4 | TD | PLACER | SWP |
| CA3190002 | CITY OF LINCOLN WASTEWATER TREATMENT PLA | NP | There are no treatment plants | PLACER | ||
| CA5110001 | CITY OF LIVE OAK | C | D2 | T2 | SUTTER | GW |
| CA0190002 | CITY OF LIVERMORE | NP | There are no treatment plants | ALAMEDA | ||
| CA0110011 | CITY OF LIVERMORE | C | D4 | There are no treatment plants | ALAMEDA | SWP |
| CA2490003 | CITY OF LIVINGSTON | NP | There are no treatment plants | MERCED | ||
| CA2410004 | CITY OF LIVINGSTON | C | D3 | T3 | MERCED | GW |
| CA3990004 | CITY OF LODI | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA1990006 | CITY OF LOS ANGELES. DWP | NP | There are no treatment plants | LOS ANGELES | ||
| CA2410005 | CITY OF LOS BANOS | C | D3 | T1 | MERCED | GW |
| CA4610001 | CITY OF LOYALTON | C | D1 | TD | SIERRA | GW |
| CA4690001 | CITY OF LOYALTON WWTP | NP | NR | There are no treatment plants | SIERRA | |
| CA1990028 | CITY OF LYNWOOD | NP | There are no treatment plants | LOS ANGELES | ||
| CA2090004 | CITY OF MADERA | NP | There are no treatment plants | MADERA | ||
| CA2010002 | CITY OF MADERA | C | D4 | T2 | MADERA | GW |
| CA1990025 | CITY OF MALIBU | NP | There are no treatment plants | LOS ANGELES | ||
| CA3990005 | CITY OF MANTECA-WQCF | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA0710006 | CITY OF MARTINEZ | C | D3 | T5 | CONTRA COSTA | SWP |
| CA5890001 | CITY OF MARYSVILLE WW DISTRICT | NP | There are no treatment plants | YUBA | ||
| CA1590010 | CITY OF MCFARLAND | NP | There are no treatment plants | KERN | ||
| CA2410009 | CITY OF MERCED | C | D4 | T2 | MERCED | GW |
| CA2490005 | CITY OF MERCED RW | NP | There are no treatment plants | MERCED | ||
| CA2400348 | CITY OF MERCED WWTP | NTNC | D1 | TD | MERCED | GW |
| CA4110018 | CITY OF MILLBRAE | C | D3 | There are no treatment plants | SAN MATEO | SWP |
| CA4310005 | CITY OF MILPITAS | C | D5 | There are no treatment plants | SANTA CLARA | SWP |
| CA4390005 | CITY OF MILPITAS RECYCLED WATER SYSTEM | NP | There are no treatment plants | SANTA CLARA | ||
| CA5010035 | CITY OF MODESTO - CENTRAL TURLOCK | C | D1 | There are no treatment plants | STANISLAUS | GWP |
| CA5010029 | CITY OF MODESTO - DEL RIO | C | D1 | T2 | STANISLAUS | GW |
| CA5010033 | CITY OF MODESTO - GRAYSON | C | D1 | T2 | STANISLAUS | GW |
| CA5010034 | CITY OF MODESTO - NORTH TURLOCK | C | D1 | TD | STANISLAUS | GW |
| CA5010005 | CITY OF MODESTO - SALIDA | C | D3 | TD | STANISLAUS | GW |
| CA5010023 | CITY OF MODESTO - SOUTH TURLOCK | C | D2 | TD | STANISLAUS | GW |
| CA5090010 | CITY OF MODESTO - UTILITIES | NP | There are no treatment plants | STANISLAUS | ||
| CA5010031 | CITY OF MODESTO - WALNUT MANOR | C | D1 | TD | STANISLAUS | GW |
| CA3690031 | CITY OF MONTCLAIR | NP | There are no treatment plants | |||
| CA4310006 | CITY OF MORGAN HILL | C | D4 | TD | SANTA CLARA | GW |
| CA3910027 | CITY OF MOUNTAIN HOUSE | C | D3 | T4 | SAN JOAQUIN | SW |
| CA3990027 | CITY OF MOUNTAIN HOUSE RECYCLED WATER | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA4310007 | CITY OF MOUNTAIN VIEW | C | D4 | T2 | SANTA CLARA | SWP |
| CA4390009 | CITY OF MOUNTAIN VIEW RECYCLED WATER | NP | There are no treatment plants | SANTA CLARA | ||
| CA2910002 | CITY OF NEVADA CITY | C | D2 | T3 | NEVADA | SW |
| CA5090013 | CITY OF NEWMAN - RECYCLED | NP | There are no treatment plants | STANISLAUS | ||
| CA5010013 | CITY OF NEWMAN-WATER DEPARTMENT | C | D3 | TD | STANISLAUS | GW |
| CA3010023 | CITY OF NEWPORT BEACH | C | D5 | T3 | ORANGE | SWP |
| CA3090004 | CITY OF NEWPORT BEACH- RW | NP | D5 | There are no treatment plants | ORANGE | |
| CA3390025 | CITY OF NORCO - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA5000272 | CITY OF OAKDALE -KERR PARK | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3690011 | CITY OF ONTARIO - RECLAMATION | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3010027 | CITY OF ORANGE | C | D5 | T1 | ORANGE | SWP |
| CA1090013 | CITY OF ORANGE COVE | NP | There are no treatment plants | FRESNO | ||
| CA1010023 | CITY OF ORANGE COVE | C | D2 | T3 | FRESNO | SW |
| CA1110001 | CITY OF ORLAND | C | D2 | TD | GLENN | GW |
| CA1105003 | CITY OF ORLAND, HAIGH FIELD PARK | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA5690003 | CITY OF OXNARD WASTEWATER DIVISION | NP | There are no treatment plants | VENTURA | ||
| CA4190004 | CITY OF PACIFICA RECYCLED | NP | There are no treatment plants | SAN MATEO | ||
| CA1995014 | CITY OF PALMDALE (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA4310009 | CITY OF PALO ALTO | C | D5 | TD | SANTA CLARA | SWP |
| CA1010025 | CITY OF PARLIER | C | D3 | TD | FRESNO | GW |
| CA4090017 | CITY OF PASO ROBLES RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4010007 | CITY OF PASO ROBLES WATER DIVISION | C | D4 | T3 | SAN LUIS OBISPO | SW |
| CA4090018 | CITY OF PISMO BEACH RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA0710008 | CITY OF PITTSBURG | C | D4 | T5 | CONTRA COSTA | SWP |
| CA0990005 | CITY OF PLACERVILLE (RECLAMATION) | NP | There are no treatment plants | EL DORADO | ||
| CA0190009 | CITY OF PLEASANTON | NP | There are no treatment plants | ALAMEDA | ||
| CA0110008 | CITY OF PLEASANTON | C | D5 | T1 | ALAMEDA | SWP |
| CA0390004 | CITY OF PLYMOUTH - RECYCLED WATER | NP | There are no treatment plants | AMADOR | ||
| CA5490005 | CITY OF PORTERVILLE | NP | There are no treatment plants | TULARE | ||
| CA3210003 | CITY OF PORTOLA | C | D2 | TD | PLUMAS | SWP |
| CA5210004 | CITY OF RED BLUFF | C | D3 | There are no treatment plants | TEHAMA | GW |
| CA4510005 | CITY OF REDDING | C | D5 | T5 | SHASTA | SW |
| CA4590005 | CITY OF REDDING RECLAMATION | NP | There are no treatment plants | SHASTA | ||
| CA3690018 | CITY OF REDLANDS-RECYCLED WATER PROGRAM | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4190003 | CITY OF REDWOOD CITY | NP | There are no treatment plants | SAN MATEO | ||
| CA4110022 | CITY OF REDWOOD CITY | C | D5 | There are no treatment plants | SAN MATEO | SWP |
| CA3690004 | CITY OF RIALTO, UTILITIES | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA1590025 | CITY OF RIDGECREST | NP | There are no treatment plants | KERN | ||
| CA4810004 | CITY OF RIO VISTA | C | D2 | T2 | SOLANO | GW |
| CA4890004 | CITY OF RIO VISTA - RECLAIMATION | NP | There are no treatment plants | SOLANO | ||
| CA4990014 | CITY OF ROHNERT PARK RECLAMATION | NP | NA | There are no treatment plants | SONOMA | |
| CA3110008 | CITY OF ROSEVILLE | C | D5 | T5 | PLACER | SW |
| CA3410020 | CITY OF SACRAMENTO MAIN | C | D4 | T5 | SACRAMENTO | SW |
| CA3690002 | CITY OF SAN BERNARDINO (RIX) | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4110023 | CITY OF SAN BRUNO | C | D4 | T2 | SAN MATEO | SWP |
| CA3090013 | CITY OF SAN CLEMENTE | NP | N/A | There are no treatment plants | ORANGE | |
| CA3010036 | CITY OF SAN CLEMENTE | C | D5 | T2 | ORANGE | SWP |
| CA3705063 | CITY OF SAN DIEGO - EL CAPITAN RESERVOIR | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3705061 | CITY OF SAN DIEGO, CAMP MORENA | NC | D1 | T1 | SAN DIEGO | GW |
| CA1090011 | CITY OF SAN JOAQUIN - RECYCLED WATER | NP | There are no treatment plants | FRESNO | ||
| CA4310020 | CITY OF SAN JOSE - EVG/EDV/COY | C | D5 | There are no treatment plants | SANTA CLARA | SWP |
| CA4310019 | CITY OF SAN JOSE - NSJ/ALVISO | C | D3 | There are no treatment plants | SANTA CLARA | SWP |
| CA0190008 | CITY OF SAN LEANDRO | NP | There are no treatment plants | ALAMEDA | ||
| CA4090002 | CITY OF SAN LUIS OBISPO, SANITATION DEPT | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4190007 | CITY OF SAN MATEO RECYCLED WATER PROJECT | NP | There are no treatment plants | |||
| CA1010029 | CITY OF SANGER | C | D3 | T3 | FRESNO | GW |
| CA3010038 | CITY OF SANTA ANA | C | D5 | T3 | ORANGE | SWP |
| CA3090011 | CITY OF SANTA ANA- RW | NP | There are no treatment plants | ORANGE | ||
| CA4290002 | CITY OF SANTA BARBARA RECYCLED WATER DIV | NP | There are no treatment plants | SANTA BARBARA | ||
| CA4210010 | CITY OF SANTA BARBARA WATER DEPARTMENT | C | D5 | T5 | SANTA BARBARA | SW |
| CA4310012 | CITY OF SANTA CLARA | C | D5 | There are no treatment plants | SANTA CLARA | SWP |
| CA4210011 | CITY OF SANTA MARIA UTILITIES DEPARTMENT | C | D4 | T3 | SANTA BARBARA | SWP |
| CA5610011 | CITY OF SANTA PAULA | C | D4 | T2 | VENTURA | GW |
| CA5690009 | CITY OF SANTA PAULA RECYCLING PROJECT | NP | There are no treatment plants | VENTURA | ||
| CA3010041 | CITY OF SEAL BEACH | C | D3 | TD | ORANGE | SWP |
| CA4510006 | CITY OF SHASTA LAKE | C | D3 | T3 | SHASTA | SW |
| CA4590006 | CITY OF SHASTA LAKE - RECLAMATION | NP | There are no treatment plants | SHASTA | ||
| CA5690001 | CITY OF SIMI VALLEY, SANITATION DISTRICT | NP | There are no treatment plants | VENTURA | ||
| CA2790012 | CITY OF SOLEDAD RW | NP | There are no treatment plants | MONTEREY | ||
| CA1910154 | CITY OF SOUTH PASADENA | C | D4 | T3 | LOS ANGELES | SWP |
| CA2890006 | CITY OF ST. HELENA RECYCLED WATER PROJEC | NP | There are no treatment plants | NAPA | ||
| CA3910012 | CITY OF STOCKTON | C | D5 | T5 | SAN JOAQUIN | SW |
| CA3990012 | CITY OF STOCKTON - WASTEWATER | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA4310014 | CITY OF SUNNYVALE | C | D4 | There are no treatment plants | SANTA CLARA | SWP |
| CA1810001 | CITY OF SUSANVILLE | C | D2 | TD | LASSEN | GW |
| CA0390903 | CITY OF SUTTER CREEK/ARSA | NP | There are no treatment plants | AMADOR | ||
| CA1590022 | CITY OF TAFT RECYCLED WATER | NP | There are no treatment plants | KERN | ||
| CA1590017 | CITY OF TEHACHAPI RECYCLED WATER SYSTEM | NP | There are no treatment plants | KERN | ||
| CA5200504 | CITY OF TEHAMA | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5610020 | CITY OF THOUSAND OAKS WATER DEPARTMENT | C | D4 | There are no treatment plants | VENTURA | SWP |
| CA1995006 | CITY OF TORRANCE | NP | There are no treatment plants | LOS ANGELES | ||
| CA3990011 | CITY OF TRACY RECYCLED WATER | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA5490010 | CITY OF TULARE | NP | There are no treatment plants | TULARE | ||
| CA5090019 | CITY OF TURLOCK - RECLAMATION | NP | There are no treatment plants | STANISLAUS | ||
| CA3010046 | CITY OF TUSTIN | C | D4 | T3 | ORANGE | SWP |
| CA3690024 | CITY OF UPLAND - RECYCLED WATER | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4810008 | CITY OF VACAVILLE | C | D5 | T4 | SOLANO | SW |
| CA4890005 | CITY OF VACAVILLE - RECLAIMATION | NP | There are no treatment plants | SOLANO | ||
| CA4810007 | CITY OF VALLEJO | C | D5 | T5 | SOLANO | SW |
| CA4810021 | CITY OF VALLEJO-LAKES SYSTEM | C | D2 | T3 | SOLANO | SW |
| CA5690007 | CITY OF VENTURA WASTEWATER DIVISION | NP | There are no treatment plants | VENTURA | ||
| CA3690021 | CITY OF VICTORVILLE (RECYCLED WATER) | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA5490003 | CITY OF VISALIA | NP | There are no treatment plants | TULARE | ||
| CA5010006 | CITY OF WATERFORD | C | D2 | T2 | STANISLAUS | GW |
| CA5710003 | CITY OF WEST SACRAMENTO | C | D4 | T5 | YOLO | SW |
| CA3010064 | CITY OF WESTMINSTER | C | D4 | TD | ORANGE | SWP |
| CA5810004 | CITY OF WHEATLAND | C | D2 | TD | YUBA | GW |
| CA0610004 | CITY OF WILLIAMS | C | D2 | T1 | COLUSA | GW |
| CA2390002 | CITY OF WILLITS | NP | There are no treatment plants | MENDOCINO | ||
| CA5710005 | CITY OF WINTERS | C | D2 | TD | YOLO | GW |
| CA5490012 | CITY OF WOODLAKE | NP | There are no treatment plants | TULARE | ||
| CA5710006 | CITY OF WOODLAND | C | D4 | T1 | YOLO | SWP |
| CA5790006 | CITY OF WOODLAND WASTEWATER TREATMENT | NP | There are no treatment plants | YOLO | ||
| CA5110002 | CITY OF YUBA CITY | C | D4 | T5 | SUTTER | SW |
| CA5700761 | CLARK PACIFIC - CR 18C | NTNC | D1 | T1 | YOLO | GW |
| CA1502056 | CLARK STREET COMMUNITY WELL | C | D1 | There are no treatment plants | KERN | GW |
| CA5301113 | CLARK SYSTEM | NC | NR | There are no treatment plants | TRINITY | GW |
| CA5700804 | CLARKSBURG COMM CHURCH | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA5700509 | CLARKSBURG MIDDLE SCHOOL | NTNC | D1 | TD | YOLO | GW |
| CA2400255 | CLASSIC YAM WATER SYSTEM | NTNC | D1 | T1 | MERCED | GW |
| CA2400347 | CLAUSEN MEAT COMPANY | NTNC | D1 | TD | MERCED | GW |
| CA3610114 | CLAWA | C | D3 | T3 | SAN BERNARDINO | SW |
| CA1000315 | CLAY JOINT ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA0707603 | CLAYTON PALMS WATER | C | D1 | There are no treatment plants | CONTRA COSTA | SWP |
| CA1502763 | CLEAN HARBORS BUTTONWILLOW, LLC. | NTNC | D1 | TD | KERN | GWP |
| CA4510016 | CLEAR CREEK CSD-ANDERSON | C | D2 | T5 | SHASTA | SW |
| CA1800512 | CLEAR CREEK CSD-WESTWOOD | C | D1 | There are no treatment plants | LASSEN | GW |
| CA1800010 | CLEAR CREEK LATTER DAY SAINTS CHURCH | NC | NR | There are no treatment plants | LASSEN | GW |
| CA4500208 | CLEAR CREEK MARKET | NTNC | NR | TD | SHASTA | GW |
| CA4500066 | CLEAR CREEK MOBILE PARK | C | D1 | TD | SHASTA | GW |
| CA1900527 | CLEAR CREEK OUTDOOR EDUCATION CENTER | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA2900536 | CLEAR CREEK SCHOOL | NTNC | D1 | There are no treatment plants | NEVADA | GW |
| CA4900736 | CLEAR CREEK WATER COMPANY | C | D1 | T1 | SONOMA | GW |
| CA2701898 | CLEAR RIDGE WA | C | D1 | T2 | MONTEREY | GU |
| CA1900817 | CLEAR SKIES MOBILE HOME PARK | C | D1 | T1 | LOS ANGELES | GW |
| CA1700546 | CLEAR WATER MUTUAL WATER COMPANY | C | D1 | T3 | LAKE | SW |
| CA1710001 | CLEARLAKE OAKS COUNTY WATER DISTRICT | C | D3 | T3 | LAKE | SW |
| CA4901483 | CLEARWATER RANCH | C | D1 | There are no treatment plants | SONOMA | GW |
| CA3901457 | CLEMENTS RIDGE PRODUCE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900504 | CLEMENTS WATER WORKS #43 | C | D1 | T1 | SAN JOAQUIN | GW |
| CA2300636 | CLEONE CAMPGROUND AND GROCERY | NC | D1 | TD | MENDOCINO | GW |
| CA0901223 | CLEVELAND CORRAL REST AREA | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3400113 | CLIFF'S MARINA | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4901278 | CLINE CELLARS | NTNC | D1 | TD | SONOMA | GW |
| CA1000679 | CLINGANS GROCERY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000606 | CLINGANS JUNCTION CABINS AND COFFEE | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3200509 | CLIO PUBLIC UTILITY DISTRICT | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA3200083 | CLIO RIVERS EDGE RV PARK | NC | NR | TD | PLUMAS | GW |
| CA3100105 | CLIPPER GAP HEAD START | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA2801006 | CLOS DU VAL WINE CO. | NTNC | D1 | Operator is not required | NAPA | GW |
| CA2801007 | CLOS PEGASE WINERY | NTNC | NR | There are no treatment plants | NAPA | GW |
| CA5800017 | CLOVER CAFE & WINE BAR | NC | NR | There are no treatment plants | YUBA | GW |
| CA3702364 | CLOVER FLAT ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA5610068 | CLOVERDALE MUTUAL WATER CO. | C | D1 | TD | VENTURA | GW |
| CA4910002 | CLOVERDALE, CITY OF | C | D2 | T3 | SONOMA | GU |
| CA4900774 | CLOVERLEAF RANCH SUMMER CAMP | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3790106 | CO OF SAN DIEGO WASTEWATER MANAGEMENT | NP | There are no treatment plants | SAN DIEGO | ||
| CA3301148 | COACHELLA VALLEY PUBLIC CEMETERY | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3390001 | COACHELLA VWD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA3310001 | COACHELLA VWD: COVE COMMUNITY | C | D5 | T2 | RIVERSIDE | GW |
| CA3310048 | COACHELLA VWD: I.D. NO. 8 | C | D3 | TD | RIVERSIDE | GW |
| CA3310007 | COACHELLA WATER AUTHORITY | C | D4 | Operator is not required | RIVERSIDE | GW |
| CA2600755 | COACHWHIP CAFE | NC | NR | There are no treatment plants | MONO | GW |
| CA1010004 | COALINGA-CITY | C | D3 | T4 | FRESNO | SW |
| CA2000581 | COARSEGOLD INN | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000558 | COARSEGOLD MARKET | NTNC | D1 | TD | MADERA | GW |
| CA2000611 | COARSEGOLD SCHOOL | NTNC | D1 | T1 | MADERA | GW |
| CA2000260 | COARSEGOLD SELF SERVE | NC | NR | TD | MADERA | GW |
| CA2300519 | COAST INN AND SPA | NC | D1 | TD | MENDOCINO | GW |
| CA2110007 | COAST SPRINGS - CAL. WATER SERVICE (PUC) | C | D1 | T3 | MARIN | SW |
| CA4000844 | COASTAL CHRISTIAN SCHOOL | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2701279 | COASTLANDS MWS (POST CREEK) | C | D1 | T2 | MONTEREY | SW |
| CA4110011 | COASTSIDE COUNTY WATER DISTRICT | C | D3 | T3 | SAN MATEO | SW |
| CA1710012 | COBB AREA COUNTY WATER DISTRICT | C | D2 | T1 | LAKE | GW |
| CA5000033 | COBLES CORNER | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1300540 | COCO PALMS MOBILE HOME PARK | NC | NR | T2 | IMPERIAL | GW |
| CA2000810 | CODORNIZ REC AREA EASTMAN LK | NC | NR | TD | MADERA | GW |
| CA0901260 | CODY WATER ASSOCIATION | NC | NR | T2 | EL DORADO | SW |
| CA5105011 | COE ORCHARD EQUIPMENT | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA0400161 | COHASSET INDUSTRIAL PARK | NC | D1 | There are no treatment plants | BUTTE | GW |
| CA1900612 | COLBY RANCH-UNITED METHODIST CAMP | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4700885 | COLD CREEK MUTUAL WATER COMPANY | C | There are no treatment plants | SISKIYOU | GW | |
| CA2000619 | COLD SPRING GRANITE CO RAYMOND | NTNC | D1 | T1 | MADERA | GW |
| CA4200577 | COLD SPRING TAVERN | NC | D2 | T1 | SANTA BARBARA | SW |
| CA5510011 | COLD SPRINGS WATER CO | C | D1 | T2 | TUOLUMNE | SW |
| CA2600733 | COLD WATER CANYON MWC | C | D1 | There are no treatment plants | MONO | GW |
| CA1900952 | COLDBROOK CAMPGROUND | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4500036 | COLEMAN NATIONAL FISH HATCHERY | NTNC | D1 | There are no treatment plants | SHASTA | GW |
| CA2600570 | COLEVILLE HIGH SCHOOL | NTNC | D1 | T2 | MONO | GW |
| CA4900667 | COLLEGE PARK MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA3900965 | COLLEGEVILLE MARKET & CAFE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5800829 | COLLINS LAKE | NC | NR | There are no treatment plants | YUBA | GW |
| CA0707517 | COLONIA SANTA MARIA | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA2700534 | COLONIAL OAK WC INC | C | D1 | T1 | MONTEREY | GW |
| CA4900721 | COLONIAL PARK | C | D1 | T2 | SONOMA | GW |
| CA1900801 | COLORADO MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA3610014 | COLTON, CITY OF | C | D5 | T2 | SAN BERNARDINO | GW |
| CA5500149 | COLUMBIA MOBILE HOME PARK | C | D1 | TD | TUOLUMNE | GW |
| CA5400886 | COLUMBINE SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA1503681 | COLUMBINE VINEYARDS PLANT 1 WATER SYSTEM | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA0600012 | COLUSA CO. SERVICE AREA #1-CENTURY RANCH | C | D1 | T2 | COLUSA | SW |
| CA0600005 | COLUSA CO. SERVICE AREA #2-STONYFORD | C | D1 | T2 | COLUSA | GW |
| CA0600008 | COLUSA CO. WWD #1 - GRIMES | C | D1 | TD | COLUSA | GW |
| CA0600013 | COLUSA CO. WWD #2 - PRINCETON | C | D1 | TD | COLUSA | GW |
| CA0600065 | COLUSA INDUSTRIAL PROPERTIES | NTNC | D1 | TD | COLUSA | GW |
| CA0600009 | COLUSA LANDING | NC | NR | There are no treatment plants | COLUSA | GW |
| CA5403062 | COMFORT INN & SUITES | NC | NR | There are no treatment plants | TULARE | GW |
| CA1910050 | COMMERCE-CITY, WATER DEPT. | C | D2 | T2 | LOS ANGELES | SWP |
| CA5601125 | COMMUNITY MUTUAL WATER CO | C | D1 | TD | VENTURA | GW |
| CA3103218 | COMMUNITY OF THE GREAT COMMISSION | NC | NR | There are no treatment plants | PLACER | GW |
| CA1910026 | COMPTON-CITY, WATER DEPT. | C | D4 | TD | LOS ANGELES | SWP |
| CA3500912 | COMSTOCK MUTUAL WATER COMPANY | C | D1 | TD | SAN BENITO | GW |
| CA4901423 | COMSTOCK WINERY | NC | NR | T1 | SONOMA | GW |
| CA0707542 | CONCORD MT DIABLO TRAILRIDE ASSOC. | NC | D1 | TD | CONTRA COSTA | GW |
| CA0400064 | CONCOW ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA4000809 | CONGREGATION BETH DAVID | NC | D1 | TD | SAN LUIS OBISPO | GW |
| CA2801009 | CONN CREEK WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA4810036 | CONNECTION POINT CHURCH | NC | D1 | There are no treatment plants | SOLANO | GW |
| CA0710003 | CONTRA COSTA WATER DISTRICT | C | D5 | T5 | CONTRA COSTA | SW |
| CA1400155 | CONTROL GORGE POWER PLANT | C | D1 | T3 | INYO | GU |
| CA2702641 | CONUNDRUM WINERY WS | NC | NR | TD | MONTEREY | GW |
| CA2600601 | CONVICT LAKE CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA0300052 | COOK'S STATION | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4901328 | COPAIN WINE CELLARS | NC | NR | T1 | SONOMA | GW |
| CA4700551 | COPCO LAKE MWC | C | D1 | T1 | SISKIYOU | GW |
| CA1090001 | COPPER RIVER RANCH WRF | NP | There are no treatment plants | FRESNO | ||
| CA3200063 | COPPERCREEK CAMPGROUND | NC | D1 | There are no treatment plants | PLUMAS | GW |
| CA1503689 | COPUS ROAD LLC | NC | D1 | T1 | KERN | GW |
| CA1610004 | CORCORAN, CITY OF | C | D3 | T4 | KINGS | GW |
| CA2701820 | CORDA RD WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3400286 | CORDOVA GOLF COURSE | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1700549 | CORINTHIAN BAY MUTUAL WATER COMPANY | C | D1 | TD | LAKE | GW |
| CA4901275 | CORNERSTONE SONOMA | NC | NR | There are no treatment plants | SONOMA | GW |
| CA5200255 | CORNING RV PARK | C | D1 | TD | TEHAMA | GW |
| CA3310037 | CORONA, CITY OF | C | D5 | T5 | RIVERSIDE | SWP |
| CA3390037 | CORONA, CITY OF - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA5403116 | CORRAL CREEK RESORT | NC | NR | TD | TULARE | GW |
| CA2702315 | CORRAL DE TIERRA COUNTRY CLUB WS | NTNC | D1 | TD | MONTEREY | GW |
| CA2700536 | CORRAL DE TIERRA ESTATES WC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3900702 | CORRAL HOLLOW PWS | C | D1 | T2 | SAN JOAQUIN | GW |
| CA2710850 | CORRECTIONAL TRAINING FACILITY - SOLEDAD | C | D2 | T1 | MONTEREY | GW |
| CA2400254 | CORTEZ GROWERS ASSO. WATER SYSTEM | NC | NR | There are no treatment plants | MERCED | GW |
| CA3901015 | CORTI WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4500009 | CORTLAND PINES MUTUAL WATER CO | C | D1 | There are no treatment plants | SHASTA | GW |
| CA2801010 | COSENTINO WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA1400012 | COSO JUNCTION RANCH STORE | NC | NR | There are no treatment plants | INYO | GW |
| CA1503687 | COSTAJO ARCO AMPM | NC | NR | There are no treatment plants | KERN | GW |
| CA4100603 | COSTANOA CAMPGROUND | NTNC | D1 | T2 | SAN MATEO | GW |
| CA3400253 | COSUMNES RIVER ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3400432 | COSUMNES RIVER PRESERVE VISITOR (BLM) | NC | NR | T1 | SACRAMENTO | GW |
| CA4910016 | COTATI, CITY OF | C | D2 | T2 | SONOMA | GW |
| CA0500016 | COTTAGE SPRINGS WATER CO. | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA4200939 | COTTON WOOD WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5201127 | COTTONWOOD CHEVRON | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4500107 | COTTONWOOD RIDGE MANUFACTURED HOUSING CO | C | D1 | TD | SHASTA | GW |
| CA3301308 | COTTONWOOD SCHOOL | NTNC | D1 | TD | RIVERSIDE | GW |
| CA4510007 | COTTONWOOD WATER DISTRICT | C | D2 | There are no treatment plants | SHASTA | GW |
| CA2290006 | COULTERVILLE WASTEWATER RECLAMATION | NP | There are no treatment plants | MARIPOSA | ||
| CA2400128 | COUNTRY CLUB COUNTY WD | C | D1 | There are no treatment plants | MERCED | GW |
| CA3900733 | COUNTRY CLUB VISTA MUTUAL WATER CO | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000670 | COUNTRY CORNER MARKET | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3301946 | COUNTRY CORNERS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4000637 | COUNTRY HILLS ESTATES | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3301058 | COUNTRY HILLS RV PARK | NC | D1 | TD | RIVERSIDE | GW |
| CA2800683 | COUNTRY INN, THE | NC | NR | There are no treatment plants | NAPA | GW |
| CA0706031 | COUNTRY JUNCTION DELI | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA1100413 | COUNTRY LEISURE MOBILE ESTATES | C | D1 | There are no treatment plants | GLENN | GW |
| CA1300550 | COUNTRY LIFE MH & RV PARK | C | D1 | T2 | IMPERIAL | SW |
| CA3900844 | COUNTRY MANOR MHP | C | D1 | T1 | SAN JOAQUIN | GW |
| CA3901011 | COUNTRY MARKET | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901435 | COUNTRY MART DIESEL & GAS WATER SYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900607 | COUNTRY SQUIRE MOBILE ESTATES & WATER SY | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000505 | COUNTRY STORE WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000218 | COUNTRY VILLA APTS | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5800824 | COUNTRY VILLAGE MOBILE HOME PARK | C | D1 | T2 | YUBA | GW |
| CA5000080 | COUNTRY WESTERN MHRV | C | D1 | T2 | STANISLAUS | GW |
| CA1000430 | COUNTRYSIDE CARE CENTER | C | D1 | TD | FRESNO | GW |
| CA3400201 | COUNTRYSIDE DRIVE-IN | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2702374 | COUNTRYSIDE ESTATES MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3901046 | COUNTRYSIDE LIQUORS & GAS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503398 | COUNTRYSIDE MKT & RESTRN-119 | NC | NR | There are no treatment plants | KERN | GW |
| CA1503676 | COUNTRYSIDE MKT & RESTRNT - BEAR MTN | NC | NR | There are no treatment plants | KERN | GW |
| CA1503654 | COUNTRYSIDE MKT & RESTRNT - COMANCHE | NC | NR | There are no treatment plants | KERN | GW |
| CA5800828 | COUNTRYSIDE MOBILE HOME PARK | C | D1 | T1 | YUBA | GW |
| CA4000590 | COUNTY OF MONTEREY-LAKE NACIMIENTO | NTNC | D1 | T2 | SAN LUIS OBISPO | GU |
| CA4100582 | COUNTY SERVICE AREA 11 | C | D1 | TD | SAN MATEO | GW |
| CA4100509 | COUNTY SERVICE AREA 7 | C | D1 | T2 | SAN MATEO | SW |
| CA3690010 | COUNTY SERVICE AREA-70 - RECLAMATION | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA5403148 | COURAGE TO CHANGE | NTNC | D1 | TD | TULARE | GW |
| CA3400334 | COURTLAND BOARDWALK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1000012 | COURTRIGHT LAKE VILLAGE | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4000843 | COURTSIDE CELLARS | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA1000249 | COVE ISLAND RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4700626 | COVE MOBILE VILLA | C | D1 | TD | SISKIYOU | GW |
| CA2300892 | COVELO MOBILE HOME PARK | C | D1 | T1 | MENDOCINO | GW |
| CA5000516 | COVENANT GROVE CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1910128 | COVINA IRRIGATING CO. | C | D4 | T4 | LOS ANGELES | SW |
| CA1910127 | COVINA-CITY, WATER DEPT. | C | D4 | There are no treatment plants | LOS ANGELES | SWP |
| CA5301103 | COVINGTON MILL - A | C | NR | There are no treatment plants | TRINITY | GW |
| CA5301104 | COVINGTON MILL MWC-DIVISION B | C | D1 | There are no treatment plants | TRINITY | GW |
| CA5500027 | COW CREEK PERMITTEES ASSOCIATION | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA5400987 | COWPUNCHERS FOUNTAIN SPRINGS | NC | D1 | T2 | TULARE | GW |
| CA4300596 | COYOTE CREEK GOLF CLUB | NTNC | D1 | TD | SANTA CLARA | GW |
| CA4300815 | COYOTE LAKE COUNTY PARK | NC | D1 | TD | SANTA CLARA | GW |
| CA1300514 | COYOTE VALLEY MUTUAL WATER CO | C | D1 | There are no treatment plants | IMPERIAL | GW |
| CA4300994 | COYOTE VALLEY RV RESORT | C | D1 | TD | SANTA CLARA | GW |
| CA4300967 | COYOTE VALLEY SPORTING CLAYS | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA3901323 | COZAD WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3600490 | CRAB FLATS CAMPGROUND | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0409195 | CRAIN PARK WATER SYSTEM | NC | NR | There are no treatment plants | BUTTE | GW |
| CA5200015 | CRAIN WALNUT SHELLING, INC. | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA2000530 | CRASS MUTUAL WATER COMPANY | C | D1 | TD | MADERA | GW |
| CA3600770 | CRAZZY'S WASEWAGAN CAMP | NC | NR | T2 | SAN BERNARDINO | SW |
| CA3500911 | CREEKBRIDGE MUTUAL WATER COMPANY | C | D1 | TD | SAN BENITO | GW |
| CA2300717 | CREEKSIDE CABINS & RV RESORT | C | D1 | T1 | MENDOCINO | GW |
| CA4500219 | CREEKSIDE MOBILEHOME PARK | C | D1 | There are no treatment plants | SHASTA | GW |
| CA2900531 | CREEKSIDE VILLAGE | C | D1 | There are no treatment plants | NEVADA | GW |
| CA0800542 | CRESCENT BEACH MOTEL | NC | NR | T1 | DEL NORTE | GW |
| CA1910028 | CRESCENTA VALLEY CWD | C | D4 | T3 | LOS ANGELES | SWP |
| CA2400097 | CRESSEY SCHOOL | NTNC | D1 | T1 | MERCED | GW |
| CA2400307 | CRESSEY STORE | NC | NR | There are no treatment plants | MERCED | GW |
| CA4800589 | CRESTA MESA PARQUE | C | D1 | There are no treatment plants | SOLANO | GW |
| CA3690027 | CRESTLINE CSD | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3610015 | CRESTLINE VILLAGE CWD - DIVISION 10 | C | D3 | T2 | SAN BERNARDINO | SWP |
| CA4000210 | CRESTON COUNTRY STORE | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA4000693 | CRESTON ELEMENTARY SCHOOL | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5610058 | CRESTVIEW MUTUAL WATER CO | C | D3 | T1 | VENTURA | SWP |
| CA4400605 | CRESTWOOD HEIGHTS WATER ASSN | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA5700730 | CREW WINE COMPANY | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA0800613 | CRIVELLI'S WATER SYSTEM | NC | NR | TD | DEL NORTE | GW |
| CA3200058 | CROMBERG SPRING WATER ASSN | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1503658 | CROSSOVER CHURCH OF ROSEDALE WS | NC | NR | There are no treatment plants | KERN | GW |
| CA1000511 | CROSSOVER COMMUNITY CHURCH | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4901364 | CROWELL KING RIDGE, LLC | NC | NR | T1 | SONOMA | GW |
| CA2600556 | CROWLEY LAKE CAMPGROUND (BLM) | NC | NR | There are no treatment plants | MONO | GW |
| CA2600503 | CROWLEY LAKE CAMPLAND | NC | NR | There are no treatment plants | MONO | GW |
| CA2600649 | CROWLEY LAKE FISH CAMP | NC | NR | There are no treatment plants | MONO | GW |
| CA2600708 | CROWLEY LAKE GENERAL STORE | NC | NR | There are no treatment plants | MONO | GW |
| CA2600546 | CROWLEY LAKE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | MONO | GW |
| CA2600626 | CROWLEY LAKE PARK | NC | NR | There are no treatment plants | MONO | GW |
| CA2600547 | CROWLEY LAKE TRAILER PARK | C | D1 | There are no treatment plants | MONO | GW |
| CA5610006 | CROWN POINTE ESTATES AT MALIBU, LLC | C | D1 | TD | VENTURA | GW |
| CA5000005 | CROWS LANDING COMM SVC DISTRICT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA0706018 | CRUISER HAVEN MARINA | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0900422 | CRYSTAL CAVES MHP | C | NR | There are no treatment plants | EL DORADO | GW |
| CA2600530 | CRYSTAL CRAG WATER & DEVELOPMENT ASSOC. | NC | NR | T2 | MONO | SW |
| CA1400528 | CRYSTAL GEYSER BOTTLING PLANT | NTNC | D1 | T2 | INYO | GW |
| CA3601010 | CRYSTAL LAKE PROPERTY OWNERS | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA0202532 | CRYSTAL SPRINGS CG | NC | NR | There are no treatment plants | ALPINE | GW |
| CA3601163 | CSA 29 MIDWAY PARK | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600220 | CSA 42 ORO GRANDE | C | D1 | TD | SAN BERNARDINO | GW |
| CA3301381 | CSA 51 | C | D1 | T1 | RIVERSIDE | GW |
| CA3301577 | CSA 62 | C | D1 | T1 | RIVERSIDE | GW |
| CA3600114 | CSA 70 W-3 HACIENDA | C | D1 | TD | SAN BERNARDINO | GW |
| CA3600196 | CSA 70 W-4 PIONEERTOWN | C | D1 | TD | SAN BERNARDINO | GW |
| CA3600226 | CSA 70-F MORONGO | C | D1 | TD | SAN BERNARDINO | GW |
| CA3500006 | CSA NO. 31 STONEGATE WS | C | D1 | T2 | SAN BENITO | SW |
| CA2110302 | CSP - ANGEL ISLAND ST PARK | NC | NR | TD | MARIN | GW |
| CA4100575 | CSP - ANO NUEVO STATE PARK | NC | NR | T1 | SAN MATEO | GW |
| CA2810300 | CSP - BALE GRIST MILL STATE HISTORIC PAR | NC | NR | There are no treatment plants | NAPA | GW |
| CA2610300 | CSP - BODIE SHP | NC | NR | T2 | MONO | GU |
| CA1510301 | CSP - FORT TEJON | NC | NR | TD | KERN | GW |
| CA2110304 | CSP - MARCONI CONFERENCE CENTER | NC | D1 | T2 | MARIN | GU |
| CA2110305 | CSP - MT TAM EAST PEAK SYSTEM | NC | NR | TD | MARIN | GW |
| CA2110301 | CSP - MT TAM THEATRE WELL | NC | NR | T1 | MARIN | GW |
| CA4100527 | CSP - PORTOLA STATE PARK | NC | D1 | T2 | SAN MATEO | SW |
| CA4410306 | CSP - RANCHO DEL OSO | NC | NR | T1 | SANTA CRUZ | GW |
| CA1510300 | CSP - RED ROCK CANYON | NC | NR | T2 | KERN | SW |
| CA2110300 | CSP - SAMUEL TAYLOR ST PARK | NC | NR | T1 | MARIN | GW |
| CA2110303 | CSP - TOMALES BAY ST PARK | NC | NR | TD | MARIN | GW |
| CA1510302 | CSP - TULE ELK | NC | NR | TD | KERN | GW |
| CA3910300 | CSP CASWELL STATE PARK | NC | D1 | TD | SAN JOAQUIN | GW |
| CA4310300 | CSP HENRY W. COE STATE PARK | NC | NR | TD | SANTA CLARA | GW |
| CA3510302 | CSP HOLLISTER HILLS SVRA | NC | NR | TD | SAN BENITO | GW |
| CA5105013 | CSP LABS & MICRO PARADOX | NTNC | D1 | T1 | SUTTER | GW |
| CA4410308 | CSP- KIRKWOOD ENTRANCE | NC | NR | T1 | SANTA CRUZ | GW |
| CA2710301 | CSP-ANDREW MOLERA STATE RESERVE | NC | NR | T2 | MONTEREY | GU |
| CA4910306 | CSP-ARMSTRONG REDWOODS STATE RESERVE | NC | D1 | T1 | SONOMA | GW |
| CA2810301 | CSP-BOTHE-NAPA VALLEY STATE PARK | NC | D1 | T1 | NAPA | GW |
| CA4910309 | CSP-FORT ROSS STATE PARK | NC | NR | T3 | SONOMA | GU |
| CA3510300 | CSP-FREMONT PEAK | NC | NR | TD | SAN BENITO | GW |
| CA4910313 | CSP-GOAT ROCK STATE BEACH | NC | NR | T2 | SONOMA | GU |
| CA2310303 | CSP-HENDY WOODS STATE PARK | NC | D1 | TD | MENDOCINO | GW |
| CA2710302 | CSP-J.P. BURNS PARK | NC | NR | TD | MONTEREY | GW |
| CA4910305 | CSP-JACK LONDON STATE HISTORIC PARK | NC | NR | TD | SONOMA | GW |
| CA2710306 | CSP-LIMEKILN | NC | NR | TD | MONTEREY | GW |
| CA2310301 | CSP-MACKERRICHER STATE PARK | NC | D1 | T2 | MENDOCINO | SW |
| CA2310300 | CSP-MANCHESTER STATE PARK | NC | D1 | T1 | MENDOCINO | GW |
| CA2310316 | CSP-MENDOCINO HEADLANDS - FORD HOUSE | NC | D1 | T1 | MENDOCINO | GW |
| CA2310308 | CSP-MENDOCINO HEADLANDS-SEA ARCH | NC | D1 | T1 | MENDOCINO | GW |
| CA2310313 | CSP-MENDOCINO WOODLANDS | NC | D1 | T2 | MENDOCINO | GU |
| CA4410304 | CSP-NATURE CENTER | NC | NR | T1 | SANTA CRUZ | GW |
| CA4910304 | CSP-PETALUMA ADOBE STATE HISTORIC PARK | NC | NR | TD | SONOMA | GW |
| CA2710300 | CSP-PFEIFFER BIG SUR | C | D1 | TD | MONTEREY | GW |
| CA2310317 | CSP-PT. CABRILLO LIGHT STATION SHP | NC | D1 | T2 | MENDOCINO | SW |
| CA2310304 | CSP-RUSSIAN GULCH STATE PARK | NC | D1 | T2 | MENDOCINO | SW |
| CA4910310 | CSP-SALT POINT STATE PARK | NC | NR | T2 | SONOMA | GW |
| CA2310310 | CSP-STANDISH HICKEY STATE REC AREA | NC | D1 | T2 | MENDOCINO | SW |
| CA4910302 | CSP-SUGARLOAF RIDGE STATE PARK | NC | NR | TD | SONOMA | GW |
| CA2310302 | CSP-VAN DAMME STATE PARK | NC | D1 | T2 | MENDOCINO | SW |
| CA2310312 | CSP-WESTPORT STATE BEACH | NC | D1 | T2 | MENDOCINO | SW |
| CA4910308 | CSP-WRIGHTS BEACH STATE PARK | NC | NR | T2 | SONOMA | GU |
| CA3690016 | CUCAMONGA CWD-RECLAMATION | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3610018 | CUCAMONGA VALLEY WATER DISTRICT | C | D5 | T5 | SAN BERNARDINO | SW |
| CA1200681 | CUDDEBACK GRAMMAR SCHOOL | NTNC | D1 | TD | HUMBOLDT | GW |
| CA4110012 | CUESTA LA HONDA GUILD INC | C | D1 | T3 | SAN MATEO | SW |
| CA3900701 | CURRIER ESTATES WATER CORP | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0500097 | CUSD DISTRICT OFFICE | NTNC | NR | There are no treatment plants | CALAVERAS | GW |
| CA5490004 | CUTLER - OROSI JOINT POWERS AUTHORITY | NP | There are no treatment plants | TULARE | ||
| CA5400583 | CUTLER PARK | NC | NR | There are no treatment plants | TULARE | GW |
| CA5410001 | CUTLER PUD | C | D3 | TD | TULARE | GW |
| CA2800106 | CUVAISON CARNEROS | NC | NR | There are no treatment plants | NAPA | GW |
| CA4210009 | CUYAMA COMMUNITY SERVICES DISTRICT | C | D1 | T2 | SANTA BARBARA | GW |
| CA4200879 | CUYAMA ELEMENTARY SCHOOL | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA4000598 | CUYAMA LANE WATER COMPANY | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4200514 | CUYAMA MUTUAL WATER COMPANY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA1503679 | CUYAMA ORCHARDS INC | NC | NR | T2 | KERN | GW |
| CA3701909 | CUYAMACA OUTDOOR SCHOOL | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA3710312 | CUYAMACA SP - GREEN VALLEY | NC | NR | TD | SAN DIEGO | GW |
| CA3710311 | CUYAMACA SP - PASO PICACHO | NC | NR | TD | SAN DIEGO | GU |
| CA3700074 | CUYAMACA WATER DISTRICT | C | D1 | TD | SAN DIEGO | GW |
| CA3301147 | CVUSD FACILITIES/M&O | NTNC | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA1510003 | CWS - BAKERSFIELD | C | D5 | T5 | KERN | SW |
| CA1500333 | CWS - FREMONT VALLEY | C | D1 | TD | KERN | GW |
| CA1510033 | CWS - KERNVILLE | C | D2 | T3 | KERN | SW |
| CA1510049 | CWS - LAKELAND | C | D1 | T2 | KERN | GW |
| CA1510056 | CWS - LOWER BODFISH WATER SYSTEM | C | D2 | T3 | KERN | GW |
| CA5400935 | CWS - MULLEN WATER COMPANY | C | D1 | T2 | TULARE | GW |
| CA1510055 | CWS - NORTH GARDEN | C | D3 | T4 | KERN | SW |
| CA1010024 | CWS - SELMA | C | D3 | T2 | FRESNO | GW |
| CA5410041 | CWS - TULCO WATER COMPANY | C | D1 | T3 | TULARE | GW |
| CA1510026 | CWS - UPPER BODFISH WATER SYSTEM | C | D2 | T3 | KERN | GW |
| CA5410016 | CWS - VISALIA | C | D4 | T2 | TULARE | GW |
| CA1510039 | CWS SOUTHLAKE SYSTEM | C | D2 | T2 | KERN | GW |
| CA1500374 | CWS-GRAND OAKS WATER SYSTEM | C | D1 | TD | KERN | GW |
| CA1510043 | CWS-ONYX WATER SYSTEM | C | D1 | T2 | KERN | GW |
| CA1500407 | CWS-SPLIT MOUNTAIN WATER SYSTEM | C | D1 | T2 | KERN | GU |
| CA2710009 | CWSC KING CITY | C | D3 | T1 | MONTEREY | GW |
| CA2710013 | CWSC LAS LOMAS | C | D2 | T2 | MONTEREY | GW |
| CA4310001 | CWSC LOS ALTOS SUBURBAN | C | D5 | TD | SANTA CLARA | SWP |
| CA2710019 | CWSC OAK HILLS | C | D2 | T2 | MONTEREY | GW |
| CA2710010 | CWSC SALINAS | C | D4 | T2 | MONTEREY | GW |
| CA2710012 | CWSC SALINAS HILLS | C | D2 | T1 | MONTEREY | GW |
| CA5800838 | CYO CAMP PENDOLA | NC | D1 | T2 | YUBA | SW |
| CA1502449 | CYPRESS CANYON WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA2702643 | CYPRESS CENTER WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA2702030 | CYPRESS COMMUNITY CHURCH WS | NC | D1 | T2 | MONTEREY | GW |
| CA5602103 | CYPRESS MUTUAL WATER CO INC | C | D1 | There are no treatment plants | VENTURA | SWP |
| CA4090006 | CYPRESS RIDGE DEVELOPMENT RW | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA3600086 | DAGGETT COMM SVCS DIST | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2000597 | DAIRYLAND SCHOOL | NTNC | D1 | TD | MADERA | GW |
| CA2800064 | DAKOTA SHY WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1503649 | DALE DAVIS - ENOS LANE FACILITY | NC | D1 | There are no treatment plants | KERN | GW |
| CA3705074 | DALEY RANCH | NC | D1 | TD | SAN DIEGO | GW |
| CA3902183 | DAN R COSTA INC (WS) | NC | D2 | T3 | SAN JOAQUIN | GW |
| CA1000488 | DANTE CLUB OF FRESNO | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4000825 | DAOU VINEYARDS, LLC | NTNC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA5500090 | DARDANELLES RESORT | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2800041 | DARIOUSH WINERY | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA3301701 | DARK CANYON CAMPGROUND - USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA5000599 | DARLING INGREDIENTS TURLOCK | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3601013 | DARR WATER CO | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA3901310 | DARRIGOS WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1400098 | DARWIN COMMUNITY SERVICE DISTRICT | C | D1 | T2 | INYO | GU |
| CA2400332 | DASH DREAM PLANT | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA1300575 | DATE GARDENS MOBILE HOME PARK | C | D1 | T2 | IMPERIAL | SW |
| CA0409189 | DAUTERMAN WELL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA4490002 | DAVENPORT CO SANITATION DISTRICT | NP | There are no treatment plants | SANTA CRUZ | ||
| CA4400571 | DAVENPORT COUNTY SANITATION | C | D1 | T2 | SANTA CRUZ | SW |
| CA4400505 | DAVID BRUCE WINERY | NC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2801057 | DAVIS ESTATES | NTNC | D1 | T1 | NAPA | GW |
| CA5700623 | DAVIS JUSD - FAIRFIELD SCHOOL | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA5700539 | DAVIS MIGRANT CENTER (CIUDAD DEL SOL) | NTNC | D1 | TD | YOLO | GW |
| CA5790004 | DAVIS WWTP, CITY OF - RECYCLED | NP | There are no treatment plants | YOLO | SW | |
| CA1805006 | DAYS END RV PARK | NC | NR | There are no treatment plants | LASSEN | GW |
| CA0790004 | DDSD RECYCLING PROJECT | NP | There are no treatment plants | CONTRA COSTA | ||
| CA3702703 | DE ANZA SPRINGS RESORT | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3600534 | DE BENNEVILLE PINES | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1200637 | DEAN CREEK RESORT | NC | NR | TD | HUMBOLDT | GW |
| CA1400069 | DEATH VALLEY JUNCTION | NC | TD | TD | INYO | GW |
| CA1400068 | DEEP SPRINGS COLLEGE | NTNC | D1 | TD | INYO | GW |
| CA5200582 | DEER CREEK LODGE | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5402057 | DEER CREEK RV PARK | NC | NR | There are no treatment plants | TULARE | GW |
| CA3600087 | DEER LODGE WATER SYSTEM | C | D1 | T2 | SAN BERNARDINO | SWP |
| CA5401026 | DEER MEADOW MUTUAL WATER COMPANY | C | D1 | TD | TULARE | GW |
| CA4901295 | DEERFIELD RANCH WINERY LLC | NC | NR | TD | SONOMA | GW |
| CA2702323 | DEETJEN'S BIG SUR INN WS | NTNC | D1 | T2 | MONTEREY | SW |
| CA3910702 | DEFENSE DISTRIB. DEPOT - TRACY SITE | NTNC | D2 | T1 | SAN JOAQUIN | GW |
| CA3910701 | DEFENSE DISTRIB. DEPOT, SHARPE SITE | NTNC | D1 | T2 | SAN JOAQUIN | GW |
| CA3700866 | DEL DIOS MUTUAL WATER COMPANY | C | D1 | TD | SAN DIEGO | SWP |
| CA2800100 | DEL DOTTO WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA5304113 | DEL LOMA RV PARK & CG | NC | NR | There are no treatment plants | TRINITY | GW |
| CA3710004 | DEL MAR, CITY OF | C | D2 | There are no treatment plants | SAN DIEGO | SWP |
| CA2700541 | DEL MONTE FARMS RD WS #03 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1600249 | DEL MONTE FOODS, INC. PLANT #24 | NTNC | D1 | T3 | KINGS | GW |
| CA0810300 | DEL NORTE COAST STATE PARK | NC | NR | TD | DEL NORTE | GU |
| CA5602104 | DEL NORTE MUTUAL WATER CO. | C | D1 | TD | VENTURA | GW |
| CA5410034 | DEL ORO CALIFORNIA PINES DISTRICT | C | D1 | TD | TULARE | GW |
| CA5400767 | DEL ORO EAST PLANO DISTRICT | C | D1 | There are no treatment plants | TULARE | GW |
| CA5400666 | DEL ORO GRANDVIEW GARDENS DISTRICT | C | D1 | TD | TULARE | GW |
| CA5400665 | DEL ORO RIVER ISLAND SERV TERR #1 | C | D2 | T3 | TULARE | SW |
| CA5402048 | DEL ORO RIVER ISLAND SERV TERR #2 | C | D1 | T2 | TULARE | GW |
| CA5400553 | DEL ORO TRAVER DISTRICT | C | D1 | T2 | TULARE | GW |
| CA1000057 | DEL ORO WATER CO - METROPOLITAN DISTRICT | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1210007 | DEL ORO WATER CO-FERNDALE | C | D2 | T1 | HUMBOLDT | GW |
| CA4500022 | DEL ORO WATER CO. - HAT CREEK DISTRICT | C | D1 | T2 | SHASTA | SW |
| CA4510015 | DEL ORO WATER CO.-JOHNSON PARK | C | D1 | TD | SHASTA | GW |
| CA0405001 | DEL ORO WATER CO.-LIME SADDLE MARINA | C | D2 | T2 | BUTTE | SW |
| CA0410009 | DEL ORO WATER CO.-MAGALIA | C | D1 | T2 | BUTTE | GW |
| CA0410011 | DEL ORO WATER CO.-PARADISE PINES | C | D3 | TD | BUTTE | SWP |
| CA0410018 | DEL ORO WATER CO.-STIRLING BLUFFS | C | D1 | T2 | BUTTE | SW |
| CA0400091 | DEL ORO WATER COMPANY - BUZZTAIL DIST. | C | D1 | TD | BUTTE | GW |
| CA5510007 | DEL ORO WATER COMPANY - STRAWBERRY DIV. | C | D2 | T3 | TUOLUMNE | SW |
| CA0605011 | DEL ORO WC - ARBUCKLE DISTRICT | C | D1 | There are no treatment plants | COLUSA | GW |
| CA1100404 | DEL ORO WC - BLACK BUTTE DISTRICT | C | D1 | TD | GLENN | GW |
| CA1500314 | DEL ORO WC - COUNTRY ESTATES DIST | C | D1 | TD | KERN | GW |
| CA5200574 | DEL ORO WC - LARKSPUR MEADOWS | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA3410007 | DEL PASO MANOR COUNTY WATER DI | C | D2 | T2 | SACRAMENTO | GW |
| CA1010035 | DEL REY COMMUNITY SERV DIST | C | D2 | There are no treatment plants | FRESNO | GW |
| CA1090005 | DEL REY CSD WASTEWATER TREATMENT PLANT | NP | There are no treatment plants | FRESNO | ||
| CA5000099 | DEL RIO EAST HOA WATER SYSTEM | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1900130 | DEL RIO MUTUAL | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1900304 | DEL SUR GARDENS TRAILER PARK | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1900750 | DEL SUR SCHOOL/WESTSIDE UNION DISTRICT | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA1502066 | DELANO GROWERS GRAPE PRODUCTS | NTNC | D1 | TD | KERN | GW |
| CA1590013 | DELANO II PRISON FOR MEN | NP | There are no treatment plants | KERN | ||
| CA1510005 | DELANO, CITY OF | C | D4 | T2 | KERN | GW |
| CA2702110 | DELANY WC | C | D1 | TD | MONTEREY | GW |
| CA2210003 | DELAWARE NORTH PARKS SERVICES AT TENAYA | NTNC | D1 | T1 | MARIPOSA | GW |
| CA5403023 | DELFT COLONY WATER | C | D1 | TD | TULARE | GW |
| CA2410006 | DELHI CWD | C | D2 | TD | MERCED | GW |
| CA2400245 | DELHI KINGDOM HALL | NC | NR | T1 | MERCED | GW |
| CA2490007 | DELHI RW | NP | There are no treatment plants | MERCED | ||
| CA3900815 | DELICATO VINEYARDS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1400088 | DELIGHT'S HOT SPRINGS RESORT | NC | NR | There are no treatment plants | INYO | GW |
| CA4901346 | DELORES LANE WATER SYSTEM | C | D1 | TD | SONOMA | GW |
| CA4700591 | DELPHIC ELEMENTARY SCHOOL | NTNC | D1 | TD | SISKIYOU | GW |
| CA3901470 | DELRIO MARKET & DELI | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA0707509 | DELTA BAR AND GRILL | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA3400303 | DELTA BEACH RESORTS [SWS] | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4810801 | DELTA CONSERVATION CAMP | C | D1 | TD | SOLANO | GW |
| CA3400461 | DELTA FARMER'S MARKET | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5700510 | DELTA HIGH SCHOOL | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA0707573 | DELTA MUTUAL WATER COMPANY | C | D1 | TD | CONTRA COSTA | GW |
| CA3400394 | DELTA SHORES RESORT | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA0706056 | DELTA SPORTSMAN | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA1503660 | DELTA TRADING WATER SYSTEM | NTNC | D1 | T1 | KERN | GW |
| CA5610001 | DEMPSEY ROAD MUTUAL WATER CO | C | D2 | TD | VENTURA | SWP |
| CA5010021 | DENAIR COMMUNITY SERVICES DISTRICT | C | D2 | There are no treatment plants | STANISLAUS | GW |
| CA5601701 | DENNISON PARK | NC | NR | TD | VENTURA | GW |
| CA3901124 | DENNY BOYS WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000134 | DEPARTMENT OF TRANSPORTATION | NC | D1 | TD | STANISLAUS | GW |
| CA3600283 | DEPARTMENT OF WATER AND POWER | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5590002 | DEPT CORR. - SIERRA CONS CAMP | NP | There are no treatment plants | TUOLUMNE | ||
| CA1503667 | DERREL'S MINI STORAGE #66 | NC | NR | There are no treatment plants | KERN | GW |
| CA0190007 | DERWA | NP | There are no treatment plants | ALAMEDA | ||
| CA3710009 | DESCANSO COMMUNITY WATER DISTRICT | C | D2 | T2 | SAN DIEGO | GW |
| CA3700029 | DESCANSO FIRE STATION | NC | NR | T1 | SAN DIEGO | GW |
| CA1990030 | DESCANSO GARDENS FOUNDATION | NP | There are no treatment plants | LOS ANGELES | ||
| CA3700013 | DESCANSO JUNCTION | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1900143 | DESERT AIRE GOLF COURSE | NC | D1 | T2 | LOS ANGELES | GW |
| CA1502247 | DESERT BREEZE MOBILE HOME ESTATES | C | D1 | TD | KERN | GW |
| CA3600088 | DESERT DAWN MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3301388 | DESERT DUNES GOLF CLUB LTD | NTNC | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3702302 | DESERT IRONWOODS RESORT INC. | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1510027 | DESERT LAKE COMM SERV DIST | C | D1 | There are no treatment plants | KERN | SWP |
| CA1900693 | DESERT PALMS MOBILE HOME PARK | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1500396 | DESERT PARADISE RV PARK WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA3310084 | DESERT SAGE YOUTH WELLNESS CENTER | NTNC | D1 | TD | RIVERSIDE | GW |
| CA3600089 | DESERT SPRINGS MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601143 | DESERT VIEW RV RESORT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3301209 | DESERT VIEW TRAILER PARK | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3310005 | DESERT WATER AGENCY | C | D5 | T3 | RIVERSIDE | SW |
| CA3390005 | DESERT WATER AGENCY - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA3901464 | DESHMESH DARBAR LODI/STK WATER SYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA2700547 | DESMOND RD WS #03 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5200529 | DESOTEC US LLC | NTNC | D1 | Missing treatment classification in SDWIS | TEHAMA | GW |
| CA3301571 | DESTINY MCINTYRE RV CAMPGROUND | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3901343 | DEVIL MOUNTAIN WHOLESALE NURSERY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2100586 | DEVILS GULCH RANCH WATER SYSTEM | NC | NR | TD | MARIN | GW |
| CA3610117 | DEVORE WC | C | D3 | TD | SAN BERNARDINO | GW |
| CA2902326 | DEW DROP INN | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3705078 | DG CAMPO | NC | There are no treatment plants | SAN DIEGO | GW | |
| CA2390731 | DHARMA REALM BUDDHIST ASSOC IIPE | NP | There are no treatment plants | MENDOCINO | ||
| CA3710053 | DHS BORDER PATROL HWY 94 CHECKPOINT | NTNC | D1 | T2 | SAN DIEGO | GU |
| CA3710052 | DHS BORDER PATROL I-8 CHECKPOINT | NTNC | D1 | TD | SAN DIEGO | GU |
| CA3710051 | DHS BOULEVARD BORDER PATROL | NTNC | D1 | TD | SAN DIEGO | GW |
| CA1310019 | DHS CALEXICO | NTNC | D1 | T3 | IMPERIAL | SWP |
| CA1502068 | DI GIORGIO SCHOOL WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA2801089 | DI ROSA ART PRESERVE | NC | NR | Operator is not required | NAPA | GW |
| CA0710007 | DIABLO WATER DISTRICT | C | D3 | T2 | CONTRA COSTA | SWP |
| CA4900562 | DIAMOND A MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA2900567 | DIAMOND ARROW CONFERENCE CENTER | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3700174 | DIAMOND JACK'S RV RANCH | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA1503360 | DIAMOND JIM S CASINO | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA1800528 | DIAMOND MOUNTAIN GOLF CLUB | NC | NR | There are no treatment plants | LASSEN | GW |
| CA0202501 | DIAMOND VALLEY SCHOOL | NTNC | NR | There are no treatment plants | ALPINE | GW |
| CA1400049 | DIAZ LAKE CAMPGROUND | NC | NR | TD | INYO | GW |
| CA2300872 | DICK'S PLACE | NC | D1 | TD | MENDOCINO | GW |
| CA3901473 | DIEDE TRUCKING WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2100580 | DIEKMANN'S GENERAL STORE | NC | NR | There are no treatment plants | MARIN | GW |
| CA4200951 | DIERBERG/STAR LANE VINEYARD | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3400254 | DILLARD ELEMENTARY SCHOOL | NTNC | D2 | There are no treatment plants | SACRAMENTO | GW |
| CA3400469 | DILLARD STORE (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4700594 | DILLON CREEK CAMPGROUND-SRNF | NC | NR | T2 | SISKIYOU | GW |
| CA0400051 | DINGERVILLE USA PARK | C | D1 | There are no treatment plants | BUTTE | GW |
| CA1000478 | DINKEY CREEK INN | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000015 | DINKEY CREEK WATER IMPROVEMENT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000625 | DINO MART 1 | NC | NR | T2 | FRESNO | GW |
| CA5410002 | DINUBA, CITY OF | C | D3 | TD | TULARE | GW |
| CA1503650 | DIRTY BIRD H2O | NC | NR | There are no treatment plants | KERN | GW |
| CA3400117 | DISCOVERY PARK [SWS] | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3390105 | DIVERSIFIED PRODUCT INDUSTRIES, INC. | NP | There are no treatment plants | RIVERSIDE | ||
| CA2000760 | DIXIELAND ELEMENTARY SCHOOL | NTNC | D1 | TD | MADERA | GW |
| CA4800732 | DIXON 76 | NC | NR | T2 | SOLANO | GW |
| CA4800804 | DIXON MIGRANT CENTER | NTNC | D1 | TD | SOLANO | GW |
| CA3902184 | DLJ PROPERTIES, LLC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4700881 | DOCTOR'S PARK OWNERS ASSOCIATION | NTNC | D1 | There are no treatment plants | SISKIYOU | GW |
| CA5500168 | DODGE RIDGE SKI RESORT | NTNC | D1 | T2 | TUOLUMNE | GU |
| CA3600094 | DOGWOOD BLUE JAY CYN IMP | C | D1 | T1 | SAN BERNARDINO | GW |
| CA2700548 | DOLAN RD MWC | C | D1 | TD | MONTEREY | GW |
| CA2702652 | DOLAN RD WATER SYSTEM #2 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2400011 | DOLE ATWATER PLANT | NTNC | D1 | T1 | MERCED | GW |
| CA2702412 | DOLE FRESH VEGETABLES WS | NTNC | D1 | TD | MONTEREY | GW |
| CA1000654 | DOLLAR GENERAL #19853 - SQUAW VALLEY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5800010 | DOLLAR GENERAL - LOMA RICA | NC | D1 | T2 | YUBA | GW |
| CA5800014 | DOLLAR GENERAL - SMARTSVILLE | NC | NR | There are no treatment plants | YUBA | GW |
| CA1800028 | DOLLAR GENERAL DOYLE | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1805010 | DOLLAR GENERAL JANESVILLE | NC | NR | There are no treatment plants | LASSEN | GW |
| CA5200710 | DOLLAR GENERAL PROBERTA | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA1000620 | DOLLAR GENERAL STORE #15320 | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3601190 | DOLLAR GENERAL STORE # 14280 | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5700734 | DOLLAR GENERAL STORE #16171 | NC | NR | There are no treatment plants | YOLO | GW |
| CA4700894 | DOLLAR GENERAL STORE - WEED | NC | D1 | There are no treatment plants | SISKIYOU | GW |
| CA2300743 | DOLPHIN ISLE MARINA | C | D1 | TD | MENDOCINO | GW |
| CA2801011 | DOMAINE CARNEROS | NTNC | D1 | T1 | NAPA | GW |
| CA2800736 | DOMAINE CHANDON | NTNC | D1 | T1 | NAPA | GW |
| CA2803911 | DOMINUS ESTATE WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA5500274 | DON PEDRO REC AG:BLUE OAKS | NC | D1 | T2 | TUOLUMNE | SW |
| CA5500048 | DON PEDRO REC AG:FLEM.MEADOWS | C | D1 | T2 | TUOLUMNE | SW |
| CA2900569 | DONNER MINE CAMP INC | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2910016 | DONNER SUMMIT PUBLIC UTILITY DISTRICT | C | D1 | T2 | NEVADA | SW |
| CA2901208 | DONNER TRAIL ELEMENTARY SCHOOL | NTNC | D1 | T1 | NEVADA | GW |
| CA4901447 | DONUM ESTATE WATER SYSTEM | NC | NR | TD | SONOMA | GW |
| CA1000016 | DORABELLE MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2400336 | DOREVA PRODUCE | NTNC | D1 | T1 | MERCED | GW |
| CA1503677 | DORNER FAMILY VINEYARDS | NC | NR | There are no treatment plants | KERN | GW |
| CA4710001 | DORRIS, CITY OF | C | D1 | TD | SISKIYOU | GW |
| CA2400058 | DOS PALOS Y AUCTION YARD | NC | NR | There are no treatment plants | MERCED | GW |
| CA3900842 | DOUBLE L MOBILE ESTATES | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0707615 | DOUBLETREE RANCH WATER SYSTEM | C | D1 | T1 | CONTRA COSTA | GW |
| CA3301133 | DOUG JONES WATER | NTNC | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3600604 | DOVID OVED RETREAT CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0409192 | DOWN RANGE INDOOR TRAINING CENTER | NC | NR | There are no treatment plants | BUTTE | GW |
| CA3901423 | DOWN RIVER AN ITW COMPANY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1910034 | DOWNEY - CITY, WATER DEPT. | C | D4 | There are no treatment plants | LOS ANGELES | GW |
| CA4610002 | DOWNIEVILLE PUBLIC U.D. | C | D1 | T2 | SIERRA | SW |
| CA4901246 | DOWNTOWN GRATON MUTUAL WATER SYSTEM | C | D1 | T1 | SONOMA | GW |
| CA1000017 | DOWVILLE TRACT ASSOCIATION | NC | NR | There are no treatment plants | FRESNO | GU |
| CA1800619 | DOYLE PAYLESS SHELL | NC | NR | There are no treatment plants | LASSEN | GW |
| CA5401093 | DOYLE SPRINGS ASSOCIATION | NC | NR | There are no treatment plants | TULARE | GW |
| CA4510303 | DP&R - CASTLE CRAGS SP | NC | NR | TD | SHASTA | GW |
| CA4510302 | DP&R - MCARTHUR-BURNEY FALLS SP | NC | NR | TD | SHASTA | GW |
| CA2000320 | DRAGONFLY GOLF COURSE/WATER | NC | NR | There are no treatment plants | MADERA | GW |
| CA3200049 | DREAM CATCHER CAMPGROUND | NC | D1 | There are no treatment plants | PLUMAS | GW |
| CA0500007 | DREAM MOUNTAIN CHRISTIAN CAMP INC. | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA1000258 | DRIFTWOOD MOBILEHOME PARK | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3301693 | DRIPPING SPRINGS CG- USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2702487 | DRISCOLL STRAWBERRY WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA0900109 | DRU BARNER CAMPGROUND | NC | NR | T2 | EL DORADO | GW |
| CA4901024 | DRY CREEK STORE | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901119 | DRY CREEK VINEYARD | NTNC | D1 | TD | SONOMA | GW |
| CA0300010 | DRYTOWN COUNTY WATER DISTRICT | C | D1 | There are no treatment plants | AMADOR | SWP |
| CA3100034 | DSPUD-BIG BEND | NC | D1 | T1 | PLACER | GW |
| CA5000465 | DUARTE NURSERY INC WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA0190001 | DUBLIN SAN RAMON SERVICES DISTRICT | NP | There are no treatment plants | ALAMEDA | ||
| CA0110009 | DUBLIN SAN RAMON SERVICES DISTRICT | C | D5 | There are no treatment plants | ALAMEDA | SWP |
| CA3400374 | DUCK ISLAND RV PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2800024 | DUCKHORN VINEYARDS | NTNC | D1 | Operator is not required | NAPA | GW |
| CA5400542 | DUCOR CSD | C | D1 | TD | TULARE | GW |
| CA2800587 | DUFFY'S NAPA VALLEY REHAB | NC | NR | T1 | NAPA | GW |
| CA4901060 | DUNCANS MILLS CAMPING CLUB | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4900847 | DUNCANS MILLS TRADING COMPANY | NC | D1 | There are no treatment plants | SONOMA | GW |
| CA1502690 | DUNE 3 MUTUAL WATER COMPANY, LLC | C | D1 | There are no treatment plants | KERN | GW |
| CA1300656 | DUNER'S DINER | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA4900739 | DUNHAM SCHOOL | NTNC | D1 | T1 | SONOMA | GW |
| CA1000184 | DUNLAP K-8 SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA3500539 | DUNNEVILLE MARKET & KITCHEN | NC | NR | There are no treatment plants | SAN BENITO | GW |
| CA3500910 | DUNNEVILLE ESTATES CSA #50 | C | D1 | T1 | SAN BENITO | GW |
| CA5700751 | DUNNIGAN CHEVRON | NC | NR | There are no treatment plants | YOLO | GW |
| CA0500068 | DUNROVIN MOBILE HOME VILLAGE | C | TD | There are no treatment plants | CALAVERAS | GW |
| CA4710002 | DUNSMUIR, CITY OF | C | D2 | There are no treatment plants | SISKIYOU | GW |
| CA0400140 | DURHAM DAYTON INDUSTRIAL PARTNERS-PRO PA | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA3901424 | DURHAM FERRY COMMUNITY SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0410003 | DURHAM IRRIGATION DISTRICT | C | D2 | TD | BUTTE | GW |
| CA0400135 | DURHAM PARK | NC | NR | There are no treatment plants | BUTTE | GW |
| CA0707519 | DUTCH SLOUGH WATER WORKS | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA4901464 | DUTCHER CROSSING WINERY | NC | NR | T1 | SONOMA | GW |
| CA4901471 | DUTTON FARMWORKER HOUSING | NTNC | D1 | T2 | SONOMA | GW |
| CA4901384 | DUTTON RANCH CORPORATION | NC | NR | T1 | SONOMA | GW |
| CA3610022 | DWP - FAWNSKIN | C | D1 | T2 | SAN BERNARDINO | GU |
| CA2410950 | DWR - SAN LUIS DIVISION O&M | NTNC | D1 | T2 | MERCED | SW |
| CA0710800 | DWR DELTA FIELD DIVISION - BANKS PP | NTNC | D1 | T2 | CONTRA COSTA | SW |
| CA0405002 | DWR-MONUMENT HILL RESTROOMS | NC | NR | There are no treatment plants | BUTTE | GW |
| CA5102032 | DWR-SUTTER MAINTENANCE YARD | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA1910604 | DWR. VISTA DEL LAGO VISITOR CTR,VAQUERRO | NC | NR | T2 | LOS ANGELES | SW |
| CA3901338 | DYNATECT RO-LAB, INC. | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2400169 | E & J GALLO WINERY | NTNC | D1 | T3 | MERCED | GW |
| CA4901252 | E & J GALLO WINERY-SONOMA | NTNC | D1 | T1 | SONOMA | GW |
| CA5200541 | E HEADSTART | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4901425 | E STRING CELLARS | NC | NR | T1 | SONOMA | GW |
| CA1000447 | E&J GALLO WINERY | NTNC | D1 | T1 | FRESNO | GW |
| CA0300070 | E. SILVER LAKE HOMEOWNERS | NC | NR | There are no treatment plants | AMADOR | GW |
| CA5403007 | E.M. THARP, INC. | NTNC | D1 | T1 | TULARE | GW |
| CA1800801 | EAGLE LAKE RV PARK | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1800514 | EAGLE NEST HOMEOWNERS' ASSOCIATION | NC | NR | There are no treatment plants | LASSEN | GW |
| CA3205009 | EAGLE RIDGE RV PARK | NC | D1 | There are no treatment plants | PLUMAS | GW |
| CA5400602 | EAGLE'S NEST RESORT | C | D1 | There are no treatment plants | TULARE | GW |
| CA5490008 | EARLIMART PUD | NP | There are no treatment plants | TULARE | ||
| CA5410021 | EARLIMART PUD | C | D2 | TD | TULARE | GW |
| CA1300676 | EARTHRISE NUTRITIONALS, LLC | NTNC | D1 | T2 | IMPERIAL | SW |
| CA2000512 | EAST ACRES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | MADERA | GW |
| CA4000817 | EAST AIRPORT FIERO LANE WATER COMPANY | NTNC | D1 | T2 | SAN LUIS OBISPO | GW |
| CA4900629 | EAST AUSTIN CREEK MUTUAL WATER COMPANY | NC | NR | T1 | SONOMA | GW |
| CA0110005 | EAST BAY MUD | C | D5 | T5 | ALAMEDA | SW |
| CA2600608 | EAST FORK CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA1500554 | EAST INYOKERN MUTUAL WATER | C | D1 | There are no treatment plants | KERN | GW |
| CA5100136 | EAST NICOLAUS JOINT UNION HIGH SCHOOL | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA5100135 | EAST NICOLAUS MWC | NC | D1 | There are no treatment plants | SUTTER | GW |
| CA1510006 | EAST NILES CSD | C | D4 | T2 | KERN | SWP |
| CA3010068 | EAST ORANGE COUNTY WD - RZ | C | D3 | T1 | ORANGE | SWP |
| CA3010093 | EAST ORANGE COUNTY WD - WZ | C | D4 | TD | ORANGE | SWP |
| CA5401003 | EAST OROSI COMMUNITY SERVICES DISTRICT | C | D1 | TD | TULARE | GW |
| CA5400744 | EAST THREE RIVERS MUTUAL WATER CORP | C | D1 | TD | TULARE | GW |
| CA4200800 | EAST VALLEY FARMS MUTUAL WATER COMPANY | C | D1 | T2 | SANTA BARBARA | GW |
| CA3610064 | EAST VALLEY WATER DISTRICT | C | D5 | T4 | SAN BERNARDINO | SW |
| CA3690026 | EAST VALLEY WD (RECYCLED WATER) | NP | Missing treatment classification in SDWIS | SAN BERNARDINO | ||
| CA3400106 | EAST WALNUT GROVE [SWS] | C | D2 | T2 | SACRAMENTO | GW |
| CA1502699 | EAST WILSON ROAD WATER COMPANY | C | D1 | Operator is not required | KERN | GW |
| CA4810040 | EASTERLY WWTP - VACAVILLE | NTNC | D1 | There are no treatment plants | SOLANO | GW |
| CA3310009 | EASTERN MUNICIPAL WD | C | D5 | T5 | RIVERSIDE | SWP |
| CA3390009 | EASTERN MUNICIPAL WD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA3105779 | EASTERN REGIONAL SANITARY LANDFILL WATER | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA1400526 | EASTERN SIERRA COLLEGE CENTER - BISHOP | NTNC | D1 | TD | INYO | GW |
| CA1400055 | EASTERN SIERRA REGIONAL AIRPORT | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA1400136 | EASTERN SIERRA TRI COUNTY FAIR | NC | NR | There are no treatment plants | INYO | GW |
| CA5000574 | EASTIN | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2000618 | EASTMAN LAKE HEADQUARTERS | NC | NR | TD | MADERA | GW |
| CA1000221 | EASTON AUTHORITY JPA | NTNC | D1 | TD | FRESNO | GW |
| CA1000626 | EASTON BRANCH LIBRARY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000018 | EASTON ESTATES WATER COMPANY | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000416 | EASTON PRESBYTERIAN CHURCH | NC | D1 | TD | FRESNO | GW |
| CA1900751 | EASTSIDE UNION SCHOOL DISTRICT | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA3010008 | EASTSIDE WATER ASSOCIATION | C | D2 | TD | ORANGE | GW |
| CA4800820 | EB STONE | NTNC | NR | There are no treatment plants | SOLANO | GW |
| CA0790001 | EBMUD | NP | There are no treatment plants | CONTRA COSTA | ||
| CA0190005 | EBMUD - E. BAYSHORE RW | NP | There are no treatment plants | ALAMEDA | ||
| CA0190004 | EBMUD - SAN RAMON VALLEY RW | NP | There are no treatment plants | ALAMEDA | ||
| CA0190003 | EBMUD ENAQUA UV | NP | There are no treatment plants | ALAMEDA | ||
| CA0105010 | EBRPD - DEL VALLE REGIONAL PARK | NC | NR | T2 | ALAMEDA | SW |
| CA0105013 | EBRPD - PIEDMONT STABLES | NC | NR | TD | ALAMEDA | GW |
| CA0105012 | EBRPD - SUNOL REGIONAL WILDERNESS | NC | NR | TD | ALAMEDA | GW |
| CA0707644 | EBRPD ALHAMBRA | NC | D1 | TD | CONTRA COSTA | GW |
| CA0708000 | EBRPD BAY POINT REGIONAL SHORELINE | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA0707502 | EBRPD BLACK DIAMOND MINES | NC | D1 | TD | CONTRA COSTA | GW |
| CA0706111 | EBRPD LITTLE HILLS | NC | D1 | TD | CONTRA COSTA | GW |
| CA0707900 | EBRPD MORGAN TERRITORY | NC | D1 | TD | CONTRA COSTA | GW |
| CA0707643 | EBRPD OLD BRIONES REGIONAL PARK | NC | D1 | TD | CONTRA COSTA | GW |
| CA0706112 | EBRPD ROUND VALLEY WATER SYSTEM | NC | D1 | TD | CONTRA COSTA | GW |
| CA2000688 | ECCO | C | D1 | T2 | MADERA | GW |
| CA0900652 | ECHO CHALET INC | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900650 | ECHO LAKE CAMP | NC | NR | T2 | EL DORADO | SW |
| CA3600377 | ECHO LODGE RESORT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0900603 | ECHO PEAK WATER ASSOCIATION | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900525 | ECHO ROAD GROUP WATER ASSOC | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2701423 | ECHO VALLEY RD WS #05 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700552 | ECHO VALLEY SCHOOL WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA5200802 | ECO SHELL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0900536 | ECONO LODGE INN AND SUITES | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4300602 | ECONOMY INN | NC | NR | T1 | SANTA CLARA | GW |
| CA3400119 | EDDO'S HARBOR & R V PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3400433 | EDGEWATER MOBILE HOME PARK | C | D1 | T2 | SACRAMENTO | GW |
| CA2600568 | EDNA BEAMAN ELEMENTARY SCHOOL | NTNC | D1 | T2 | MONO | GW |
| CA4000202 | EDNA VALLEY RANCH EAST | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4000819 | EDNA VALLEY VINEYARDS | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1510702 | EDWARDS AFB - AIR FORCE RESEARCH LAB | NTNC | D1 | TD | KERN | SWP |
| CA1510701 | EDWARDS AFB - MAIN BASE | C | D4 | T2 | KERN | SWP |
| CA1590001 | EDWARDS AIR FORCE BASE | NP | There are no treatment plants | KERN | ||
| CA2300863 | EEL RIVER CHARTER SCHOOL | NTNC | D1 | TD | MENDOCINO | GW |
| CA2800101 | EHLERS ESTATE | NC | NR | Operator is not required | NAPA | GW |
| CA0990004 | EID - RECYCLED WATER (MAIN) | NP | There are no treatment plants | EL DORADO | ||
| CA4901413 | EIGHTH STREET EAST PARTNERS | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3301238 | EISENHOWER MEDICAL CENTER(WATER) | NTNC | D2 | TD | RIVERSIDE | GW |
| CA4901404 | EKTIMO VINEYARDS | NC | NR | TD | SONOMA | GW |
| CA1500493 | EL ADOBE POA, INC. | C | D1 | TD | KERN | GW |
| CA4300816 | EL CAMINO HOSPITAL | NTNC | D2 | There are no treatment plants | SANTA CLARA | SWP |
| CA2702452 | EL CAMINO MACHINE & WELDING WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700575 | EL CAMINO REAL WS #16 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2702409 | EL CAMINO WC INC | C | D1 | T1 | MONTEREY | GW |
| CA4210304 | EL CAPITAN BEACH STATE PARK | NC | D1 | T2 | SANTA BARBARA | GW |
| CA4200703 | EL CAPITAN MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA1310004 | EL CENTRO, CITY OF | C | D5 | T5 | IMPERIAL | SWP |
| CA2000577 | EL CID MEXICAN CUISINE | NC | NR | There are no treatment plants | MADERA | GW |
| CA3601161 | EL COYOTE LOCO | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA0910001 | EL DORADO ID - MAIN | C | D5 | T5 | EL DORADO | SW |
| CA0910018 | EL DORADO ID - OUTINGDALE | C | D1 | T3 | EL DORADO | SW |
| CA0910017 | EL DORADO ID - STRAWBERRY | C | D1 | T2 | EL DORADO | SW |
| CA0990003 | EL DORADO IRRIGAITON DISTRICT-CREEKSIDE | NP | There are no treatment plants | EL DORADO | ||
| CA0990001 | EL DORADO IRRIGATION DISTRICT - SERRANO | NP | There are no treatment plants | EL DORADO | ||
| CA1690008 | EL DORADO MHP WWTF-MCCLORY PROPERTIES | NP | There are no treatment plants | KINGS | ||
| CA3400121 | EL DORADO MOBILE HOME PARK | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA1900803 | EL DORADO MUTUAL WATER CO. | C | D1 | T2 | LOS ANGELES | SWP |
| CA3400122 | EL DORADO WEST MHP | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3601115 | EL MIRAGE MARKET | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601179 | EL MIRAGE SCHOOL | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3700895 | EL MONTE COUNTY PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1910038 | EL MONTE-CITY, WATER DEPT. | C | D3 | T2 | LOS ANGELES | GW |
| CA2400075 | EL NIDO ELEMENTARY SCHOOL | NTNC | D1 | T2 | MERCED | GW |
| CA2400053 | EL NIDO MOBILE HOME PARK | C | D1 | T1 | MERCED | GW |
| CA4900799 | EL PORTAL MOBILE ESTATES | C | D1 | T1 | SONOMA | GW |
| CA1900636 | EL RANCHO MOBILE HOME PARK | C | D1 | T1 | LOS ANGELES | GW |
| CA3900709 | EL RANCHO MOTEL | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4200924 | EL RANCHO TAJIGUAS | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4500246 | EL RIO ESTATES | C | D1 | TD | SHASTA | GW |
| CA3900569 | EL RIO MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1910040 | EL SEGUNDO-CITY, WATER DEPT. | C | D3 | There are no treatment plants | LOS ANGELES | SWP |
| CA1503305 | EL TACO LOCO | NC | NR | TD | KERN | GW |
| CA1502074 | EL TEJON MIDDLE SCHOOL | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA0500069 | EL TORERO RESTAURANT | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3010079 | EL TORO WATER DISTRICT | C | D5 | There are no treatment plants | ORANGE | SWP |
| CA3090015 | EL TORO WD RECYCLED WATER SYSTEM | NP | N/A | There are no treatment plants | ORANGE | |
| CA5400846 | ELBOW SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA5403130 | ELEANOR ROOSEVELT COMM LEARNING CTR | NTNC | D1 | TD | TULARE | GW |
| CA4400903 | ELEVATE ADDICTION SERVICES | NC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4500325 | ELEVATE CAMPS SMALL WATER SYSTEM | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4200975 | ELEVEN CONFESSIONS WINERY | NC | There are no treatment plants | SANTA BARBARA | GW | |
| CA3400191 | ELEVEN OAKS MOBILE HOME COMMUNITY | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3301183 | ELIM FOOLISH PLEASURE | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA1206013 | ELK COUNTRY RV RESORT AND CAMPGROUND | NC | NR | TD | HUMBOLDT | GW |
| CA2300514 | ELK COUNTY WATER DISTRICT | C | D1 | T3 | MENDOCINO | GU |
| CA1100616 | ELK CREEK COMMUNITY S.D. | C | D1 | T3 | GLENN | SW |
| CA3410008 | ELK GROVE WATER DISTRICT | C | D3 | T3 | SACRAMENTO | GW |
| CA3400123 | ELKHORN BOAT LAUNCH [SWS] | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3900724 | ELKHORN ESTATES WATER SYSTEM | C | D1 | T2 | SAN JOAQUIN | GW |
| CA3400131 | ELKHORN I-5 REST AREA | NC | NR | TD | SACRAMENTO | GW |
| CA2700579 | ELKHORN RD WS #04 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5700763 | ELKHORN REGIONAL PARK | NC | NR | There are no treatment plants | YOLO | GW |
| CA2700577 | ELKHORN SCHOOL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA5601134 | ELKINS RANCH | C | D1 | T2 | VENTURA | GU |
| CA4000671 | ELKS LODGE #322 | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5000563 | ELKS LODGE 1282 | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2400227 | ELKS LODGE PARK | NC | NR | There are no treatment plants | MERCED | GW |
| CA2600597 | ELLERY LAKE CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA4200693 | ELLWOOD MUTUAL WATER COMPANY | C | D1 | T1 | SANTA BARBARA | GW |
| CA1000277 | ELM COURT | C | D1 | TD | FRESNO | GW |
| CA3303021 | ELSINORE HILLS RV PARK | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3310012 | ELSINORE VALLEY MWD | C | D5 | T4 | RIVERSIDE | SW |
| CA3390012 | ELSINORE VALLEY MWD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA3200030 | ELWELL LODGE | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA4400667 | EMERALD CITY MUTUAL WATER CO | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2000563 | EMERALD COVE CAMP | NC | NR | There are no treatment plants | MADERA | GW |
| CA3600368 | EMERALD COVE RESORT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1200705 | EMERALD FOREST | NC | NR | T2 | HUMBOLDT | GU |
| CA4090003 | EMERALD HILLS ESTATES RW | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4301004 | EMERALD VALLEY MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA2703132 | EMERALD VALLEY-ZABALA WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3103310 | EMIGRANT GAP MUTUAL WATER CO. | C | D1 | There are no treatment plants | PLACER | GW |
| CA3601128 | EMPIRE LANDING CAMPGROUND-SUNDANCE RV | NC | NR | T2 | SAN BERNARDINO | SW |
| CA2300820 | EMPIRE REST STOP (CALTRANS) | NC | D1 | TD | MENDOCINO | GW |
| CA5000261 | EMPIRE SPORTSMEN'S/CASINO ROYALE | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1000230 | EN-T-EM "ON THE RIVER" | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2800578 | ENCHANTED HILLS | NC | D1 | T2 | NAPA | SW |
| CA1300574 | ENCHANTED PALMS | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA4400619 | ENCHANTED VALLEY | NC | NR | T1 | SANTA CRUZ | GW |
| CA5100172 | ENCINAL ELEMENTARY SCHOOL | NTNC | D1 | T1 | SUTTER | GW |
| CA2701241 | ENCINAL RD WS #01 | C | D1 | T2 | MONTEREY | GW |
| CA3901304 | ENCLAVE AT THE DELTA | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900547 | END-O-VALLEY MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA2900571 | ENGLEBRIGHT DAM RECREATION CENTER | NC | NR | T1 | NEVADA | GW |
| CA1500544 | ENOS LANE PUBLIC UTILITY DISTRICT | C | D1 | T2 | KERN | GW |
| CA3901392 | ENVIROPLEX, INC | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA2800030 | ENVY WINES | NC | NR | There are no treatment plants | NAPA | GW |
| CA3500927 | ENZA ZADEN RESEARCH | NTNC | D1 | T2 | SAN BENITO | GW |
| CA3301557 | EOC WELL - PALM SPRINGS | NC | NR | TD | RIVERSIDE | GW |
| CA1590020 | ERRO RANCH FORCED TO WQI | NP | There are no treatment plants | KERN | ||
| CA1510009 | ERSKINE CREEK WC | C | D2 | TD | KERN | GW |
| CA2701295 | ESALEN INSTITUTE WS | C | D1 | T2 | MONTEREY | SW |
| CA3901231 | ESCALON GOLF COURSE WS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901344 | ESCALON LIVESTOCK MKT | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900748 | ESCALON USD- COLLEGEVILLE SCH | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3910003 | ESCALON, CITY OF | C | D2 | TD | SAN JOAQUIN | GW |
| CA3710006 | ESCONDIDO, CITY OF | C | D5 | T5 | SAN DIEGO | SW |
| CA3790006 | ESCONDIDO, CITY OF - RECLAMATION | NP | N/A | There are no treatment plants | SAN DIEGO | |
| CA5710007 | ESPARTO C.S.D. | C | D2 | T1 | YOLO | GW |
| CA2702615 | ESPERANZA RD WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702613 | ESTANCIA WINERY WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA5602101 | ESTERINA PROPERTIES | C | D1 | TD | VENTURA | GW |
| CA4110021 | ESTERO MUNICIPAL IMPROVEMENT DISTRICT | C | D3 | There are no treatment plants | SAN MATEO | SWP |
| CA2100519 | ESTERO MUTUAL | C | D1 | T2 | MARIN | SW |
| CA2000206 | ETAA FACILITIES LLC | NTNC | D1 | TD | MADERA | GW |
| CA4710004 | ETNA, CITY OF | C | D1 | T2 | SISKIYOU | SW |
| CA2801002 | ETUDE WINES | NTNC | NR | Operator is not required | NAPA | GW |
| CA1210004 | EUREKA, CITY OF | C | D3 | T2 | HUMBOLDT | GWP |
| CA3901373 | EUSD-GATEWAY CHARTER | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901167 | EUSD-VAN ALLEN SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5500089 | EVERGREEN LODGE | NTNC | D1 | T1 | TUOLUMNE | GW |
| CA4900728 | EVERGREEN MOBILE ESTATES | C | D1 | TD | SONOMA | GW |
| CA2400084 | EVERGREEN MOBILE HOME PARK | C | D1 | There are no treatment plants | MERCED | GW |
| CA3200114 | EVERGREEN MOTEL & MHP | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA1900804 | EVERGREEN MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA5200513 | EVERGREEN UNION SCHOOL DISTRICT | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA3103234 | EVERYBODY'S INN | NC | NR | There are no treatment plants | PLACER | GW |
| CA5700558 | EXCEL GAS AND MARKET | NC | NR | T1 | YOLO | GW |
| CA5000473 | EXCELL CENTER | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA0706029 | EXCELSIOR MIDDLE SCHOOL | NTNC | D1 | TD | CONTRA COSTA | GW |
| CA5403147 | EXETER KINGDOM HALL | NC | NR | There are no treatment plants | TULARE | GW |
| CA5410003 | EXETER, CITY OF | C | D3 | TD | TULARE | GW |
| CA4500360 | EXODUS FARMS | NC | NR | There are no treatment plants | SHASTA | GW |
| CA2000834 | EXTRA MART | NC | NR | T2 | MADERA | GW |
| CA2701681 | EXXON STATION WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA4390010 | FACEBOOK RECYCLED WATER | NP | There are no treatment plants | SAN MATEO | ||
| CA3410009 | FAIR OAKS WATER DISTRICT | C | D3 | TD | SACRAMENTO | SWP |
| CA4890001 | FAIRFIELD-SUISUN SEWER DISTRICT | NP | There are no treatment plants | SOLANO | ||
| CA2000384 | FAIRMEAD LANDFILL | NTNC | D1 | TD | MADERA | GW |
| CA3901348 | FAIROAKS PWS #44 | C | D2 | TD | SAN JOAQUIN | GW |
| CA5800572 | FAIRWAY DOWNS MUTUAL WATER CO | C | D2 | There are no treatment plants | YUBA | GW |
| CA3901075 | FAIRWAY ESTATES PWS CSA-18 | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5403084 | FAIRWAY MUTUAL WATER CO | C | D1 | TD | TULARE | GW |
| CA2708852 | FAITH AND FAMILY FARMS WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA3901402 | FAITH COMMUNITY CHURCH OF THE NAZARENE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4510008 | FALL RIVER VALLEY CSD | C | D2 | There are no treatment plants | SHASTA | GW |
| CA3700782 | FALLBROOK KAMP RETREAT | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3710008 | FALLBROOK PUD | C | D4 | T4 | SAN DIEGO | SWP |
| CA3790008 | FALLBROOK PUD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA0900641 | FALLEN LEAF MUTUAL WATER CO | NC | NR | T2 | EL DORADO | SW |
| CA0400117 | FALLING ROCK RV PARK | C | NR | There are no treatment plants | BUTTE | GW |
| CA3500830 | FALLON ROAD LABOR HOUSING | C | D1 | There are no treatment plants | SAN BENITO | GW |
| CA3600485 | FALLS PICNIC WATER SYSTEM | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3610021 | FALLSVALE SERVICE COMPANY | C | D1 | TD | SAN BERNARDINO | GW |
| CA5403126 | FAMILY EDUCATION CENTER | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA2000294 | FAMILY FOOD CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA3901328 | FAMILY MARKET WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5403041 | FAMILY TREE FARMS | NTNC | D1 | T2 | TULARE | GW |
| CA5403102 | FAMILY TREE FARMS-TRAVER | NC | D1 | T1 | TULARE | GW |
| CA1502826 | FAMOSO FUEL STOP | NC | NR | There are no treatment plants | KERN | GW |
| CA1500090 | FAMOSO INN WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1504000 | FAMOSO NUT COMPANY | NTNC | D1 | T2 | KERN | GW |
| CA1503215 | FAMOSO RACEWAY, SMOKERS INC. | NC | NR | There are no treatment plants | KERN | GW |
| CA2800049 | FANTESCA WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA5400896 | FAR HORIZONS CAMP | NC | NR | There are no treatment plants | TULARE | GW |
| CA2800299 | FAR NIENTE WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA0400012 | FARM LABOR HOUSING | C | D2 | T2 | BUTTE | GW |
| CA3310046 | FARM MUTUAL W.C. (THE) | C | D2 | T1 | RIVERSIDE | SWP |
| CA4900684 | FARMER WATER SYSTEM | NC | NR | T1 | SONOMA | GW |
| CA1105007 | FARMERS BREWING CO.,LLC | NC | D1 | There are no treatment plants | GLENN | GW |
| CA2000931 | FARMERS MARKET | NC | NR | There are no treatment plants | MADERA | GW |
| CA5000382 | FARMERS' DEN /MARKET | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5410004 | FARMERSVILLE, CITY OF | C | D3 | TD | TULARE | GW |
| CA3900505 | FARMINGTON WATER COMPANY | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0706005 | FARRAR PARK PROPERTY OWNERS | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA2000968 | FAST AND EZ TRIP | NC | NR | There are no treatment plants | MADERA | GW |
| CA4901433 | FAT PILGRIM GENERAL STORE | NC | NR | T1 | SONOMA | GW |
| CA5301112 | FAWN & STONEY CAMPGROUND | NC | NR | There are no treatment plants | TRINITY | GW |
| CA3902211 | FC TRACY HOLDINGS, LLC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000590 | FCOE SCOUT ISLAND | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000096 | FCPG/AVOCADO LAKE PARK | NC | NR | TD | FRESNO | GW |
| CA1000270 | FCPG/CHOINUMNI CAMPGROUND | NC | NR | TD | FRESNO | GW |
| CA1000094 | FCPG/KEARNEY PARK | NC | NR | TD | FRESNO | GW |
| CA1000097 | FCPG/LOST LAKE RECREATION AREA | NC | NR | TD | FRESNO | GW |
| CA1000021 | FCSA #05/WILDWOOD ISLAND | C | D1 | T1 | FRESNO | GW |
| CA1000020 | FCSA #1 / TAMARACK | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000039 | FCSA #10/CUMORAH KNOLLS | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000554 | FCSA #10A/MANSIONETTE ESTATES | C | D1 | TD | FRESNO | GW |
| CA1000023 | FCSA #14/BELMONT MANOR | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000024 | FCSA #23/EXCHEQUER HEIGHTS | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000019 | FCSA #30/EL PORVENIR | C | D1 | T2 | FRESNO | SW |
| CA1000549 | FCSA #31/SHAVER LAKE COMM. CENTER | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000359 | FCSA #32/CANTUA CREEK | C | D1 | T2 | FRESNO | SW |
| CA1000484 | FCSA #34/ MILLERTON NEW TOWN | C | D1 | T2 | FRESNO | SW |
| CA1000574 | FCSA #34B/VENTANA HILLS | C | NR | There are no treatment plants | FRESNO | GW |
| CA1000471 | FCSA #39 A&B | C | D1 | There are no treatment plants | FRESNO | GWP |
| CA1000551 | FCSA #43/RAISIN CITY | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000555 | FCSA #44C/RIVERVIEW ESTATES | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1090550 | FCSA #44D MONTE VERDI RECYCLED WATER | NP | There are no treatment plants | FRESNO | ||
| CA1000550 | FCSA #44D/MONTE VERDI | C | D1 | TD | FRESNO | GW |
| CA1010055 | FCSA #47/QUAIL LAKE ESTATES | C | D2 | TD | FRESNO | GW |
| CA1000546 | FCSA #49/ FIVE POINTS | C | D1 | T2 | FRESNO | SW |
| CA1090484 | FCSA#34/ MILLERTON NEW TOWN | NP | There are no treatment plants | FRESNO | ||
| CA1010051 | FCWWD #18/FRIANT | C | D1 | T2 | FRESNO | SW |
| CA1010062 | FCWWD #18/MIRA BELLA | C | D1 | T1 | FRESNO | GW |
| CA1000040 | FCWWD #37/MILE HIGH | C | D1 | T1 | FRESNO | GW |
| CA1000041 | FCWWD #38/SKY HARBOUR | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000042 | FCWWD #40 / SHAVER SPRINGS | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1010017 | FCWWD #41/SHAVER LAKE | C | D2 | T1 | FRESNO | GW |
| CA1000078 | FCWWD #42/ALLUVIAL & FANCHER | C | D1 | There are no treatment plants | FRESNO | GW |
| CA3200111 | FEATHER RIVER COMMUNITY COLLEGE | NTNC | D1 | TD | PLUMAS | GW |
| CA5800851 | FEATHER RIVER MANOR | C | D1 | There are no treatment plants | YUBA | GW |
| CA3200148 | FEATHER RIVER RV & MHP | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA0400067 | FEATHER RIVER SCHOOL | NTNC | D1 | TD | BUTTE | GW |
| CA3701594 | FEATHERSTONE CANYON CHRISTIAN CAMP | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA0409188 | FEDEX FREIGHT, INC. CHI | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA0409194 | FEDEX GROUND | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA5000110 | FEE WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5800863 | FELLOWSHIP OF FRIENDS | C | D1 | There are no treatment plants | YUBA | GW |
| CA3601172 | FENDERS | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1910801 | FENNER CANYON YOUTH CONSERVATION CAMP | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4400572 | FERN GROVE WATER CLUB | C | D1 | TD | SANTA CRUZ | GW |
| CA3310040 | FERN VALLEY WD | C | D2 | T2 | RIVERSIDE | SW |
| CA1200648 | FERNBRIDGE CAFE | NC | NR | T2 | HUMBOLDT | GU |
| CA2702325 | FERNWOOD WS | C | D1 | T2 | MONTEREY | GU |
| CA4901202 | FERRARI-CARANO WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA4200965 | FESS PARKER WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2300852 | FETZER VINEYARDS | NTNC | D1 | T1 | MENDOCINO | GW |
| CA0300019 | FIDDLETOWN COMMUNITY SERVICE | C | D1 | TD | AMADOR | GW |
| CA4300937 | FIELD SPORTS PARK/COYOTE RANCH | NC | D1 | TD | SANTA CLARA | GW |
| CA4900968 | FIELD STONE WINERY | NC | NR | T1 | SONOMA | GW |
| CA1210020 | FIELDBROOK GLENDALE C.S.D. | C | D2 | There are no treatment plants | HUMBOLDT | GWP |
| CA4090012 | FIERO LANE RECYCLED WATER COMPANY | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4000722 | FIERO LANE WATER COMPANY, INC. | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | SWP |
| CA5601105 | FILLMORE IRRIGATION CO | C | D1 | TD | VENTURA | GW |
| CA5610002 | FILLMORE WATER DEPT | C | D3 | TD | VENTURA | GW |
| CA3901182 | FINLEYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900705 | FINNLEES TRAILER PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900559 | FIRCREST MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1900901 | FIRE SUPPRESSION CAMP #19 | C | D1 | T2 | LOS ANGELES | GU |
| CA1010005 | FIREBAUGH CITY | C | D2 | T2 | FRESNO | GW |
| CA2400085 | FIREBAUGH TRAVEL PLAZA (SW) | NC | D1 | T2 | MERCED | SW |
| CA3510009 | FIRECLAY TILE | NTNC | D1 | T1 | SAN BENITO | GW |
| CA5500357 | FIREFALL RANCH WATER SYSTEM | NTNC | D1 | T1 | TUOLUMNE | GW |
| CA2701214 | FIRESTONE BUSINESS PARK WS | NTNC | D1 | TD | MONTEREY | GW |
| CA4200866 | FIRESTONE VINEYARD | NTNC | D1 | TD | SANTA BARBARA | GW |
| CA5700701 | FIRST BAPTIST CHURCH | NC | NR | There are no treatment plants | YOLO | GW |
| CA0310011 | FIRST MACE MEADOW # 1 | C | D1 | There are no treatment plants | AMADOR | SWP |
| CA0310018 | FIRST MACE MEADOWS UNIT NO. 2 | C | D1 | There are no treatment plants | AMADOR | SWP |
| CA1502569 | FIRST MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA1200733 | FISH LAKE CG - SRNF | NC | NR | T2 | HUMBOLDT | SW |
| CA5305504 | FISH TAIL INN | NC | NR | T2 | TRINITY | SW |
| CA2210903 | FISHCAMP MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA3901290 | FISHER NURSERY | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA5000585 | FISHER NUT | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000058 | FISHERMAN'S BEND MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3301267 | FISHERMAN'S RETREAT | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA1009020 | FIVE POINTS RANCH | C | D1 | TD | FRESNO | GW |
| CA3901248 | FLAG CITY WATER SYSTEM | NTNC | D1 | T2 | SAN JOAQUIN | GW |
| CA4200964 | FLAG IS UP FARMS | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA2300838 | FLIGHT RIDGE | NTNC | D1 | T1 | MENDOCINO | GW |
| CA0900560 | FLL MUTUAL | NC | NR | T2 | EL DORADO | GW |
| CA2600656 | FLO'S DINER | NC | NR | There are no treatment plants | MONO | GW |
| CA4200905 | FLOOD RANCH/RANCHO SISQUOC | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2701152 | FLORICULTURA PACIFIC WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3410033 | FLORIN COUNTY WATER DISTRICT | C | D2 | T1 | SACRAMENTO | GW |
| CA2900502 | FLORISTON WATER SYSTEM | C | D1 | T2 | NEVADA | GU |
| CA5200518 | FLOURNOY SCHOOL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA2301012 | FLOW RESTAURANT | NC | TD | T1 | MENDOCINO | GW |
| CA4901253 | FLOWERS WINERY | NC | NR | TD | SONOMA | GW |
| CA2700147 | FLRISH FARMS WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA5301012 | FLUX RIVER RESORT | NC | D1 | T1 | TRINITY | GW |
| CA1907011 | FLYING J TRAVEL CENTER | NTNC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1502820 | FLYING J TRAVEL PLAZA | NTNC | D2 | TD | KERN | GW |
| CA3400457 | FLYING V STATION | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4901340 | FOG CREST WINERY | NC | NR | T1 | SONOMA | GW |
| CA2301016 | FOG EATER CAFE | NC | TD | T1 | MENDOCINO | GW |
| CA4200973 | FOLDED HILLS WINERY | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA4200942 | FOLEY ESTATES WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4900957 | FOLEY FAMILY WINES CHATEAU ST. JEAN | NTNC | D1 | T1 | SONOMA | GW |
| CA2800971 | FOLEY JOHNSON WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901261 | FOLEY SONOMA WINERY | NC | NR | T1 | SONOMA | GW |
| CA2702495 | FOLKTALE WINERY WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3107339 | FOLSOM LAKE MUTUAL WATER CO | C | D1 | There are no treatment plants | PLACER | SWP |
| CA3410301 | FOLSOM LAKE SRA - MISSISSIPPI BAR | NC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA0910300 | FOLSOM LAKE SRA - PENINSULA CAMPGROUND | NC | NR | TD | EL DORADO | GW |
| CA3410032 | FOLSOM STATE PRISON | C | D2 | T3 | SACRAMENTO | SW |
| CA3410030 | FOLSOM, CITY OF - ASHLAND | C | D2 | There are no treatment plants | SACRAMENTO | SWP |
| CA3410014 | FOLSOM, CITY OF - MAIN | C | D4 | T5 | SACRAMENTO | SW |
| CA5400769 | FOOTHILL APARTMENTS | C | D1 | T2 | TULARE | GW |
| CA1000476 | FOOTHILL ELEMENTARY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA3600386 | FOOTHILL ESTATES MHP | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2702198 | FOOTHILL ESTATES WS | C | D1 | TD | MONTEREY | GW |
| CA5500109 | FOOTHILL HORIZONS | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA5800901 | FOOTHILL LIONS CLUB | NC | NR | There are no treatment plants | YUBA | GW |
| CA1400037 | FOOTHILL MOBILE HOME PARK | C | D1 | There are no treatment plants | INYO | GW |
| CA1910032 | FOOTHILL MUNICIPAL WATER DIST. | C | D4 | There are no treatment plants | LOS ANGELES | SWP |
| CA4300630 | FOOTHILL MUTUAL WATER COMPANY | C | D1 | TD | SANTA CLARA | GW |
| CA1995017 | FOOTHILL MWD (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA2702431 | FOOTHILL RD WS #01 | NTNC | D1 | TD | MONTEREY | GW |
| CA2702135 | FOOTHILL WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA0400027 | FOOTHILLS MANUFACTURED HOME COMMUNUTY | C | D1 | TD | BUTTE | GW |
| CA4900982 | FOPPIANO VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA3600106 | FOREST HOME CHRISTIAN CC | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA0400078 | FOREST KNOLLS MUTUAL WATER CO | C | D1 | There are no treatment plants | BUTTE | GW |
| CA4410016 | FOREST LAKES MWC | C | D2 | T2 | SANTA CRUZ | GU |
| CA3600601 | FOREST LAWN SCOUT RESERVATION | NC | NR | Missing treatment classification in SDWIS | SAN BERNARDINO | GW |
| CA3600107 | FOREST PARK MWC | C | D1 | TD | SAN BERNARDINO | GW |
| CA0300024 | FOREST POINT MHC | C | D1 | T1 | AMADOR | GW |
| CA0400079 | FOREST RANCH CHARTER SCHOOL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA0400004 | FOREST RANCH MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | BUTTE | GW |
| CA4400608 | FOREST SPRINGS | C | D1 | There are no treatment plants | SANTA CRUZ | SWP |
| CA0400042 | FOREST VILLAGE LLC | C | D1 | There are no treatment plants | BUTTE | GW |
| CA3110003 | FORESTHILL PUBLIC UTILITY DIST | C | D2 | T3 | PLACER | SW |
| CA4990019 | FORESTVILLE WATER DISTRICT | NP | NA | There are no treatment plants | SONOMA | |
| CA4910019 | FORESTVILLE WATER DISTRICT | C | D2 | There are no treatment plants | SONOMA | GWP |
| CA2000251 | FORKS RESORT | NC | NR | There are no treatment plants | MADERA | GW |
| CA2500705 | FORT BIDWELL HOTEL | NC | NR | There are no treatment plants | MODOC | GW |
| CA2310001 | FORT BRAGG, CITY OF | C | D2 | T3 | MENDOCINO | SW |
| CA2710702 | FORT HUNTER LIGGETT | C | D2 | T1 | MONTEREY | GW |
| CA2790015 | FORT HUNTER LIGGETT RECYCLE WATER | NP | There are no treatment plants | MONTEREY | ||
| CA4710003 | FORT JONES, TOWN OF | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4901066 | FORT ROSS LODGE, LLC | NC | NR | TD | SONOMA | GW |
| CA4900679 | FORT ROSS SCHOOL DISTRICT | NTNC | D1 | TD | SONOMA | GW |
| CA4901377 | FORT ROSS VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA4301006 | FORTINO WINERY | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA1210006 | FORTUNA, CITY OF | C | D3 | T2 | HUMBOLDT | GW |
| CA0900306 | FORWARD BIBLE CONFERENCE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2000932 | FOSSIL DISCOVERY CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA5000579 | FOSTER FARMS #5 | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1000566 | FOSTER FARMS - CEDAR HATCHERY | NTNC | D2 | T2 | FRESNO | GW |
| CA2400166 | FOSTER FARMS CHICKEN LIVEHAUL (SYCAMORE | NTNC | D1 | TD | MERCED | GW |
| CA2400165 | FOSTER FARMS DELHI FEEDMILL COLLIER ROAD | NTNC | D1 | T2 | MERCED | GW |
| CA2400218 | FOSTER FARMS FERTILIZER PLANT | NTNC | D1 | T1 | MERCED | GW |
| CA5403114 | FOSTER FARMS TRAVER FEEDMILL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA5000481 | FOSTER FARMS-ELLENWOOD HATCHERY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2701793 | FOSTER RD WS #02 | NC | NR | TD | MONTEREY | GW |
| CA4200556 | FOSTER ROAD MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2904011 | FOTTW | NTNC | D1 | There are no treatment plants | NEVADA | GW |
| CA1210312 | FOUNDERS GROVE-STATE PARKS | NC | NR | T2 | HUMBOLDT | SW |
| CA1000462 | FOUR BAR C FARMS | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1400182 | FOUR JEFFREY CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA5403204 | FOUR STAR FRUIT | NTNC | D1 | T2 | TULARE | GW |
| CA1503231 | FOUR WINDS WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1500449 | FOURTH STREET WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA1000199 | FOWLER CARE CENTER | C | D1 | T2 | FRESNO | GW |
| CA3107352 | FOWLER NURSERY | NC | NR | There are no treatment plants | PLACER | GW |
| CA1000480 | FOWLER PACKING COMPANY | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA4700565 | FOWLERS CAMPGROUND-STNF | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA5000166 | FOX GROVE FISHING ACCESS | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA0900206 | FOX SPARROW RV PARK | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4200952 | FOXEN VINEYARD INC. | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA5603124 | FOXFIELD RIDING SCHOOL | NC | D1 | There are no treatment plants | VENTURA | GW |
| CA4900844 | FRANCIS COPPOLA WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA0400158 | FRANCIS PROPERTY MANAGEMENT | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA3901390 | FRANK C ALEGRE TRUCKING INC WS | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA2801015 | FRANK FAMILY VINEYARDS | NTNC | D1 | T1 | NAPA | GW |
| CA5000243 | FRANK RAINES PARK OHV | NC | D1 | T2 | STANISLAUS | GU |
| CA2301003 | FRANKIES PIZZA | NC | Missing treatment classification in SDWIS | MENDOCINO | GW | |
| CA3400248 | FRANKLIN ELEMENTARY SCHOOL | NTNC | D1 | T2 | SACRAMENTO | GW |
| CA3900903 | FRANKS ONE/STOP FOOD MART WATER SYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900798 | FRANZIA WINERY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503140 | FRAZIER MOUNTAIN HIGH SCHOOL | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA5000530 | FRAZIER NUT FARMS, INC. | NTNC | D1 | T2 | STANISLAUS | GW |
| CA1510007 | FRAZIER PARK PUD | C | D2 | TD | KERN | GW |
| CA3200155 | FRCCSD HOT SPRINGS | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA3200078 | FRCCSD OLD MILL RANCH | C | D1 | TD | PLUMAS | GW |
| CA2702475 | FREE WILL BAPTIST CHURCH WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3700063 | FREEDOM RANCH | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA2800561 | FREEMARK ABBEY WINERY | NTNC | D1 | TD | NAPA | GW |
| CA3400125 | FREEPORT MARINA | C | D1 | T2 | SACRAMENTO | GW |
| CA3400441 | FREEPORT VENTURES | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4900924 | FREMONT DINER | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3901474 | FREMONT ONE | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4200626 | FREMONT/SANTA YNEZ IMPROVEMENT ASSOC. | NC | D1 | TD | SANTA BARBARA | GW |
| CA2600573 | FRENCH CAMP CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA3990901 | FRENCH CAMP GOLF AND RV PARK | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA3901377 | FRENCH CAMP GOLF COURSE | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901471 | FRESH INNOVATIONS LLC | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000555 | FRESH POINT (PIRANHA PRODUCE) | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5403215 | FRESH SELECT, LLC | NTNC | D1 | T2 | TULARE | GW |
| CA1090009 | FRESNO CLOVIS REGIONAL WWTF | NP | There are no treatment plants | FRESNO | ||
| CA1010057 | FRESNO CLOVIS RWRF WATER SYSTEM | NTNC | D1 | TD | FRESNO | GW |
| CA1090007 | FRESNO COUNTY GENERAL SERVICES DEPT. | NP | There are no treatment plants | FRESNO | ||
| CA1000649 | FRESNO MEMORIAL GARDENS | NC | D1 | TD | FRESNO | GW |
| CA1000552 | FRESNO SOUTH JEHOVAH WITNESSES | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000541 | FRESNO VALVES & CASTINGS | NTNC | D1 | T2 | FRESNO | GW |
| CA1090018 | FRIANT RANCH LP_FCWWD 18 | NP | There are no treatment plants | FRESNO | ||
| CA4500256 | FRIDAY'S RETREAT | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4900812 | FRIEDMAN BROTHERS HARDWARE | NTNC | D1 | T1 | SONOMA | GW |
| CA5200539 | FRIENDLY ACRES MHP | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5403051 | FRIENDS RV PARK | NC | NR | There are no treatment plants | TULARE | GW |
| CA1502615 | FRITO-LAY, INC. WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA4901324 | FRITSCH INDUSTRIAL PARK | NTNC | D1 | There are no treatment plants | SONOMA | GW |
| CA4901283 | FRITZ WINERY AND VINEYARD | NC | NR | TD | SONOMA | GW |
| CA2800042 | FROGS LEAP WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1500398 | FRONTIER TRAILS HOMEOWNERS ASSOC INC. | C | D1 | TD | KERN | GW |
| CA3700030 | FRY CREEK / OBSERVATORY | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5700748 | FULL BELLY FARM | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA5000414 | FULL GOSPEL ASSEMBLY | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1500296 | FULLER ACRES MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA3110015 | FULTON WATER COMPANY | C | D1 | T2 | PLACER | SW |
| CA4901449 | FURTHERMORE WINES WATER SYSTEM | NC | NR | T1 | SONOMA | GW |
| CA0409177 | G & J PROPERTIES | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA2700586 | GABILAN WC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3601191 | GABLES WATER COMPANY | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3901315 | GAF MATERIALS CO | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3303003 | GALINDO HOUSING FACILITY | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3410011 | GALT, CITY OF | C | D3 | T2 | SACRAMENTO | GW |
| CA2800033 | GAMBLE FAMILY VINEYARDS WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1210008 | GARBERVILLE SANITARY DISTRICT | C | D2 | T2 | HUMBOLDT | SW |
| CA2400328 | GARCIA FARMS PRODUCE | NC | NR | There are no treatment plants | MERCED | GW |
| CA5602108 | GARDEN ACRES MUTUAL WATER CO | C | D1 | TD | VENTURA | GW |
| CA2702571 | GARDEN COURT WS #01 | NTNC | D1 | TD | MONTEREY | GW |
| CA4000507 | GARDEN FARMS C.W.D. | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA2702203 | GARLAND PARK | NC | NR | TD | MONTEREY | GW |
| CA2700686 | GARLEN COURT WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4300989 | GARLIC COUNTRY GOLF, INC. | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA4300851 | GARLIC WORLD | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA4901356 | GARY FARRELL WINERY | NC | NR | T1 | SONOMA | GW |
| CA0706059 | GAS N SAVE | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA4500347 | GAS POINT MARKET | NC | D2 | There are no treatment plants | SHASTA | GW |
| CA0800555 | GASQUET C.S.D. | C | D1 | T2 | DEL NORTE | SW |
| CA4200981 | GATEHOUSE TASTING ROOM AT BIEN NACIDO | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA1300018 | GATEWAY | C | D2 | T3 | IMPERIAL | SW |
| CA1502673 | GATEWAY MARKET WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA5200547 | GATEWAY MOBILE HOME PARK | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5400749 | GATEWAY RESTAURANT & LODGE | NC | D1 | T2 | TULARE | SW |
| CA2090007 | GATEWAY VILLAGE DEVELOPMENT, LLC | NP | There are no treatment plants | MADERA | ||
| CA4300608 | GAVILAN JOINT COMMUNITY COLLEGE DISTRICT | NTNC | D1 | TD | SANTA CLARA | GW |
| CA4200725 | GAVIOTA OIL HEATING FACILITY | NTNC | D1 | T2 | SANTA BARBARA | SW |
| CA5000158 | GAWFCO ENTERPRISES, INC. | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3900563 | GAYLA MANOR PWS | C | D1 | T2 | SAN JOAQUIN | GW |
| CA4700582 | GAZELLE SCHOOL | NTNC | D1 | TD | SISKIYOU | GW |
| CA4100560 | GAZOS CREEK BEACH HOUSE | NC | D1 | T1 | SAN MATEO | GW |
| CA1503330 | GCG WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA2400343 | GEMPERLE EGG RANCH | NTNC | D1 | T1 | MERCED | GW |
| CA2800554 | GENE NORRIS PLAZA | NC | NR | There are no treatment plants | NAPA | GW |
| CA1901000 | GENERAL ATOMICS AERONAUTICAL - GRAY BUTT | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA3301164 | GENESIS SOLAR LLC | NTNC | D1 | T2 | RIVERSIDE | GW |
| CA4300988 | GEORGE CHIALA FARMS INC | NTNC | D1 | TD | SANTA CLARA | GW |
| CA3500928 | GEORGE CHIALA FARMS, INC.. | NTNC | D1 | T1 | SAN BENITO | GW |
| CA4900973 | GEORGE RANCH MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA2000946 | GEORGE'S RIVER RANCH | NC | NR | TD | MADERA | GW |
| CA0910013 | GEORGETOWN DIVIDE PUD | C | D3 | T3 | EL DORADO | SW |
| CA5210002 | GERBER LAS FLORES CSD | C | D2 | TD | TEHAMA | GW |
| CA5200519 | GERBER UNION ELEMENTARY SCHOOL DISTRICT | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0901228 | GERLE CREEK CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0901250 | GERLE CREEK SUMMER HOMES | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3902210 | GERMAN GUYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900705 | GEYSERVILLE NEWTECH ACADEMY SCHOOL | NTNC | D1 | T1 | SONOMA | GW |
| CA4901152 | GEYSERVILLE WINERY | NTNC | D1 | TD | SONOMA | GW |
| CA3400297 | GIBSON RANCH COUNTY PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA0300048 | GIBSON'S ROADHOUSE CAFE | NC | NR | There are no treatment plants | AMADOR | GW |
| CA3902189 | GICO MANAGEMENT | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901450 | GICO VALLEY FARMS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3600215 | GILBERT STREET COMPLEX | C | D1 | TD | SAN BERNARDINO | GW |
| CA4900521 | GILL CREEK MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4810034 | GILL SIDHU CHEVRON | NC | NR | T1 | SOLANO | GW |
| CA4300605 | GILROY USD-RUCKER SCHOOL | NTNC | D1 | TD | SANTA CLARA | GW |
| CA5403082 | GIUMARRA BROS FRUIT CO | NC | D1 | TD | TULARE | GW |
| CA4400902 | GIZDICH HOME RANCH | NC | NR | T1 | SANTA CRUZ | GW |
| CA1400505 | GLACIER LODGE | NC | NR | There are no treatment plants | INYO | GW |
| CA1300684 | GLAMIS BEACH STORE | NC | NR | T2 | IMPERIAL | GW |
| CA5602656 | GLASS HOUSE CAMARILLO CULTIVATION, LLC | NTNC | D1 | TD | VENTURA | GW |
| CA3901309 | GLASSFAB TEMPERING SERVICES INC. | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5402047 | GLEANINGS FOR THE HUNGRY | C | D1 | T2 | TULARE | GW |
| CA3301283 | GLEN EDEN SUN CLUB | C | D1 | T1 | RIVERSIDE | SWP |
| CA3600308 | GLEN HELEN TRUCK PARKING FACILITY | NC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600108 | GLEN HELEN WATER SYSTEM | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3301294 | GLEN IVY HOT SPRINGS | C | D1 | T1 | RIVERSIDE | GW |
| CA3610016 | GLEN MARTIN MWC | C | D1 | TD | SAN BERNARDINO | GW |
| CA2701825 | GLEN OAKS WS #01 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA1990008 | GLENDALE, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910043 | GLENDALE-CITY, WATER DEPT. | C | D5 | T5 | LOS ANGELES | SWP |
| CA1910044 | GLENDORA-CITY, WATER DEPT. | C | D4 | T2 | LOS ANGELES | SWP |
| CA1700508 | GLENHAVEN MUTUAL WATER COMPANY | C | D1 | T1 | LAKE | GW |
| CA2700589 | GLENN AVE WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1100221 | GLENN GOLF & COUNTRY CLUB | NC | NR | There are no treatment plants | GLENN | GW |
| CA1503536 | GLENNVILLE MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA1400030 | GLENWOOD MOBILE ESTATES | C | D1 | There are no treatment plants | INYO | GW |
| CA3900649 | GLENWOOD MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901028 | GLORIA FERRER CAVES | NTNC | D1 | TD | SONOMA | GW |
| CA0500102 | GLORY HOLE RECREATION AREA | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3107341 | GOATHOUSE BREWING AGUA | NC | NR | There are no treatment plants | PLACER | GW |
| CA1000158 | GOLD ARROW CAMP | NC | NR | There are no treatment plants | FRESNO | GW |
| CA0900102 | GOLD BEACH PARK | C | D1 | T2 | EL DORADO | GW |
| CA1210320 | GOLD BLUFFS BEACH CG-STATE PARKS | NC | NR | T2 | HUMBOLDT | SW |
| CA2900529 | GOLD COUNTRY HOME PARK - WATER SYSTEM | C | D1 | T1 | NEVADA | GW |
| CA3100043 | GOLD HILL MOBILEHOME PARK | C | D1 | TD | PLACER | GW |
| CA3200032 | GOLD LAKE LODGE | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1000607 | GOLD LEAF FARMING LLC | NTNC | D1 | T2 | FRESNO | SW |
| CA3205003 | GOLD MOUNTAIN CSD | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA4901327 | GOLD RIDGE PINOT DBA EMERITUS VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA1300546 | GOLD ROCK RANCH | C | D1 | There are no treatment plants | IMPERIAL | GW |
| CA5500128 | GOLD RUSH MOBILE HOME PARK | C | D1 | T2 | TUOLUMNE | GU |
| CA5200514 | GOLDEN ACRES TRAILER PARK | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5000439 | GOLDEN ARCO | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA0800627 | GOLDEN BEAR RV PARK | NC | NR | There are no treatment plants | DEL NORTE | GW |
| CA2900550 | GOLDEN CHAIN MOTEL | NC | NR | There are no treatment plants | NEVADA | GW |
| CA1503336 | GOLDEN EMPIRE CONCRETE COMPANY | NTNC | D1 | TD | KERN | GW |
| CA3301280 | GOLDEN ERA PRODUCTIONS | C | D1 | T1 | RIVERSIDE | GW |
| CA0400030 | GOLDEN FEATHER MHP | C | D1 | TD | BUTTE | GW |
| CA2800742 | GOLDEN HAVEN MOTEL | NC | NR | There are no treatment plants | NAPA | GW |
| CA4300992 | GOLDEN HEIGHTS MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA1510045 | GOLDEN HILLS CSD | C | D2 | T2 | KERN | GW |
| CA3100528 | GOLDEN HILLS MUTUAL WATER CO | C | D1 | There are no treatment plants | PLACER | SWP |
| CA5201147 | GOLDEN MEADOWS CSD | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA0400023 | GOLDEN OAKS MOBILE HOME PARK | C | D1 | TD | BUTTE | GW |
| CA1900649 | GOLDEN SANDS MOBILE HOME PARK | C | D1 | T1 | LOS ANGELES | GW |
| CA5000498 | GOLDEN STATE PFT PROPERTIES LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1000362 | GOLDEN STATE VINTNERS - FRESNO | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA2701550 | GOLDEN STATE VINTNERS WS | NTNC | D1 | TD | MONTEREY | GW |
| CA3610105 | GOLDEN STATE WATER CO - APPLE VLY NORTH | C | D2 | TD | SAN BERNARDINO | GW |
| CA3610107 | GOLDEN STATE WATER CO - APPLE VLY SOUTH | C | D2 | TD | SAN BERNARDINO | GW |
| CA3410003 | GOLDEN STATE WATER CO - ARDEN WATER SERV | C | D2 | T1 | SACRAMENTO | GW |
| CA3610043 | GOLDEN STATE WATER CO - BARSTOW | C | D4 | T2 | SAN BERNARDINO | GW |
| CA3610108 | GOLDEN STATE WATER CO - LUCERNE | C | D1 | TD | SAN BERNARDINO | GW |
| CA3610063 | GOLDEN STATE WATER CO - MORONGO DEL SUR | C | D2 | T2 | SAN BERNARDINO | GW |
| CA3610047 | GOLDEN STATE WATER CO - WRIGHTWOOD | C | D3 | T1 | SAN BERNARDINO | GW |
| CA3410015 | GOLDEN STATE WATER CO. - CORDOVA | C | D3 | T4 | SACRAMENTO | SW |
| CA5100107 | GOLDEN STATE WATER CO. - ROBBINS | C | D1 | T2 | SUTTER | GW |
| CA1710002 | GOLDEN STATE WATER CO.-CLEARLAKE SYSTEM | C | D2 | T3 | LAKE | SW |
| CA0710002 | GOLDEN STATE WATER COMPANY - BAY POINT | C | D3 | T1 | CONTRA COSTA | SWP |
| CA4010023 | GOLDEN STATE WATER COMPANY - EDNA | C | D2 | T2 | SAN LUIS OBISPO | GW |
| CA4210022 | GOLDEN STATE WATER COMPANY - LAKE MARIE | C | D1 | TD | SANTA BARBARA | GW |
| CA4010017 | GOLDEN STATE WATER COMPANY - LOS OSOS | C | D3 | T2 | SAN LUIS OBISPO | GW |
| CA4010018 | GOLDEN STATE WATER COMPANY - NIPOMO | C | D2 | T2 | SAN LUIS OBISPO | GW |
| CA4210016 | GOLDEN STATE WATER COMPANY - ORCUTT | C | D3 | T2 | SANTA BARBARA | SWP |
| CA5610059 | GOLDEN STATE WATER COMPANY - SIMI VALLEY | C | D3 | T2 | VENTURA | SWP |
| CA1700519 | GOLDEN STATE WATER COMPANY - SOUTH SHORE | C | D1 | T2 | LAKE | SW |
| CA4210021 | GOLDEN STATE WATER COMPANY - TANGLEWOOD | C | D2 | TD | SANTA BARBARA | SWP |
| CA4010040 | GOLDEN STATE WATER COMPANY-CYPRESS RIDGE | C | D2 | T2 | SAN LUIS OBISPO | GW |
| CA3600279 | GOLDEN STATE WATER DESERT VIEW | C | D1 | TD | SAN BERNARDINO | GW |
| CA3600270 | GOLDEN STATE WATER MORONGO DELNORTE | C | D1 | T1 | SAN BERNARDINO | GW |
| CA3010047 | GOLDEN STATE WC - COWAN HEIGHTS | C | D3 | T1 | ORANGE | SWP |
| CA3010035 | GOLDEN STATE WC - PLACENTIA/YORBA LINDA | C | D5 | T1 | ORANGE | SWP |
| CA3010022 | GOLDEN STATE WC - WEST ORANGE COUNTY | C | D5 | T1 | ORANGE | SWP |
| CA0300667 | GOLDEN VALLEY CAMP | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2090003 | GOLDEN VALLEY HIGH SCHOOL | NP | There are no treatment plants | MADERA | ||
| CA1900767 | GOLDEN VALLEY MUNICIPAL WATER DISTRICT | C | D1 | T1 | LOS ANGELES | GW |
| CA2300902 | GOLDENEYE WINERY | NC | D1 | TD | MENDOCINO | GW |
| CA4290001 | GOLETA SANITATION DISTRICT - RW | NP | There are no treatment plants | SANTA BARBARA | ||
| CA4210004 | GOLETA WATER DISTRICT | C | D5 | T5 | SANTA BARBARA | SW |
| CA2701542 | GONZALES GAS STATION WS | NC | NR | T1 | MONTEREY | GW |
| CA2710007 | GONZALES, CITY OF | C | D2 | TD | MONTEREY | GW |
| CA3200010 | GONZALEZ WATER SYSTEM | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200618 | GOODWIN'S GENERAL STORE | NC | There are no treatment plants | PLUMAS | GW | |
| CA4390011 | GOOGLE PLANETARY VENTURES | NP | There are no treatment plants | SANTA CLARA | ||
| CA3303072 | GOOSE CREEK GOLF CLUB | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA2800008 | GOOSECROSS CELLARS | NC | NR | There are no treatment plants | NAPA | GW |
| CA1500584 | GOOSELAKE WATER COMPANY | C | D1 | TD | KERN | GW |
| CA2701310 | GORDA WS | NC | NR | T2 | MONTEREY | GU |
| CA3600297 | GORDON ACRES WATER CO | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1300624 | GORDON'S WELL #1 | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA1300662 | GORDON'S WELL PARK # 2 | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA1502622 | GOSFORD ROAD WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA4810043 | GOTHAM GREENS | NTNC | D1 | T2 | SOLANO | GW |
| CA5602516 | GP ANACAPA FOODS, LLC. | NTNC | D1 | TD | VENTURA | GW |
| CA5000532 | GRACE COMMUNITY CHRISTIAN CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1503648 | GRACE COMMUNITY CHURCH WATER SYSTEM | NC | NR | TD | KERN | GW |
| CA5200598 | GRACE COMMUNITY FELLOWSHIP | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0300086 | GRACE FELLOWSHIP CHURCH | NC | NR | There are no treatment plants | AMADOR | GW |
| CA3302020 | GRACE KOREAN CHURCH | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2400099 | GRACE MENNONITE SCHOOL | NTNC | D1 | T1 | MERCED | GW |
| CA5700784 | GRACE VALLEY CHRISTIAN CENTER | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA4901395 | GRACIANNA WINERY | NC | NR | T1 | SONOMA | GW |
| CA3210005 | GRAEAGLE WATER COMPANY | C | D1 | T2 | PLUMAS | SW |
| CA4000853 | GRAN CIELO MUTUAL WATER COMPANY | C | D1 | T2 | SAN LUIS OBISPO | GW |
| CA0400008 | GRAN MUTUAL WATER CO | C | D1 | There are no treatment plants | BUTTE | GW |
| CA3400455 | GRAND ISLAND MANSION | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5400620 | GRAND VIEW SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA2702550 | GRANGE HALL WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA3303026 | GRANITE CONSTRUCTION COMPANY | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA1502580 | GRANITE CONSTRUCTION WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA4000700 | GRANITE RIDGE | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA2600552 | GRANT LAKE MARINA | NC | NR | There are no treatment plants | MONO | GW |
| CA1000645 | GRANVILLE FARMS, LLC | NTNC | D1 | T3 | FRESNO | SW |
| CA5700757 | GRASSLAND PARK HOST WELL (OLD YOLO BOWME | NC | NR | There are no treatment plants | YOLO | GW |
| CA4901368 | GRATON COMMERCE CENTER | NTNC | D1 | T2 | SONOMA | GW |
| CA4990011 | GRATON COMMUNITY SERVICES DISTRICT | NP | NA | There are no treatment plants | SONOMA | |
| CA4901221 | GRATON MUTUAL (GREEN VALLEY HOA) | C | D1 | TD | SONOMA | GW |
| CA5000273 | GRATTON SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4901130 | GRAVENSTEIN BUSINESS PARK | NTNC | D1 | T1 | SONOMA | GW |
| CA4900708 | GRAVENSTEIN SCHOOL DISTRICT-GRAVENSTEIN | NTNC | D1 | TD | SONOMA | GW |
| CA4900711 | GRAVENSTEIN SCHOOL DISTRICT-HILLCREST | NTNC | D1 | T1 | SONOMA | GW |
| CA2702180 | GRAVES SCHOOL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3200031 | GRAY EAGLE LODGE | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA0400105 | GRAY LODGE CHECK STATION | NC | D1 | T2 | BUTTE | GW |
| CA4901073 | GRAY WATER SYSTEM | NC | NR | There are no treatment plants | SONOMA | GW |
| CA0900107 | GRAY'S MART AND GAS | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1400183 | GRAYS MEADOW CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA4310022 | GREAT OAKS WC INC | C | D4 | TD | SANTA CLARA | GW |
| CA1000185 | GREAT WESTERN ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1000229 | GREEN ACRES MOBILE HOME ESTATE | C | D1 | TD | FRESNO | GW |
| CA3301293 | GREEN ACRES MOBILE PARK | NC | NR | TD | RIVERSIDE | GW |
| CA4300573 | GREEN ACRES MUTUAL WATER | C | D1 | T2 | SANTA CLARA | GW |
| CA2300775 | GREEN ACRES TRAILER PARK | NC | D1 | TD | MENDOCINO | GW |
| CA2701647 | GREEN ACRES WA | C | D1 | TD | MONTEREY | GW |
| CA1200715 | GREEN DIAMOND RESOURCE COMPANY - KORBEL | C | D1 | TD | HUMBOLDT | GW |
| CA2100565 | GREEN GULCH FARM | C | D1 | T2 | MARIN | GU |
| CA2203059 | GREEN MEADOWS OUTDOOR SCHOOL | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA4300560 | GREEN MOUNTAIN WATER COMPANY | C | D1 | TD | SANTA CLARA | GW |
| CA2300804 | GREEN REAL ESTATE ENTERPRISES LLC | NTNC | D1 | TD | MENDOCINO | GW |
| CA4000554 | GREEN RIVER MUTUAL WATER CO. | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3600011 | GREEN VALLEY CAMPGROUND | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1910244 | GREEN VALLEY CWD | C | D2 | T1 | LOS ANGELES | GW |
| CA2700236 | GREEN VALLEY FLORAL-OSR WS | NC | D1 | T1 | MONTEREY | GW |
| CA2701151 | GREEN VALLEY FLORAL-POTTER RD WS | NC | D1 | TD | MONTEREY | GW |
| CA3610023 | GREEN VALLEY MWC | C | D2 | TD | SAN BERNARDINO | SWP |
| CA4600051 | GREENE ACRES PROP. O.A. | NC | NR | There are no treatment plants | SIERRA | GW |
| CA1510024 | GREENFIELD COUNTY WD | C | D3 | T2 | KERN | GW |
| CA2710008 | GREENFIELD, CITY OF | C | D3 | TD | MONTEREY | GW |
| CA3200195 | GREENHAVEN HOA | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA4000211 | GREENHEART FARMS | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA3200188 | GREENHORN CREEK CSD | C | D1 | TD | PLUMAS | GW |
| CA5000384 | GREENLAW MODESTO INVESTORS LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000568 | GREGORI HIGH SCHOOL | NTNC | D1 | TD | STANISLAUS | GW |
| CA4700523 | GRENADA SANITARY DISTRICT | C | D1 | TD | SISKIYOU | GW |
| CA2800536 | GRGICH HILLS | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA5400728 | GRIER MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | TULARE | GW |
| CA5403122 | GRIFFIN FOOD AND GAS | NC | NR | T2 | TULARE | GW |
| CA0600003 | GRIMES BOAT AND LANDING | NC | NR | There are no treatment plants | COLUSA | GW |
| CA3301176 | GRIMMWAY ENTERPRISES - CAL ORGANIC THERM | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA1503093 | GRIMMWAY ENTERPRISES-MALAGA WATER SYSTEM | NTNC | D2 | T3 | KERN | GW |
| CA1503688 | GRIMMWAY FARMS - DAVID ROAD | NTNC | D1 | There are no treatment plants | KERN | GW |
| CA3303112 | GRIMMWAY FARMS COACHELLA VALLEY FACILITY | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA1500597 | GRIMMWAY FARMS- FROZEN FOODS | NTNC | D1 | T3 | KERN | GW |
| CA3205005 | GRIZZLY CREEK RANCH SNJ | NTNC | D1 | TD | PLUMAS | GW |
| CA1210308 | GRIZZLY CREEK SP-STATE PARKS | NC | NR | T2 | HUMBOLDT | SW |
| CA0910006 | GRIZZLY FLATS COMMUNITY SERVIC | C | D2 | T2 | EL DORADO | SW |
| CA3200107 | GRIZZLY LAKE CSD-CROCKER/WELCH | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA3200104 | GRIZZLY LAKE CSD-DELLEKER | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA3205006 | GRIZZLY RANCH CSD | C | D1 | T1 | PLUMAS | GW |
| CA3290001 | GRIZZLY RANCH RECLAMATION FACILITY | NP | There are no treatment plants | PLUMAS | ||
| CA5000400 | GRIZZLY ROCK CAFE | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4901218 | GROSKOPF WAREHOUSE & LOGISTICS | NTNC | D1 | T1 | SONOMA | GW |
| CA4000854 | GROSSO KRESSER WINERY | NC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2800105 | GROTH VINEYARDS & WINERY | NC | D1 | Operator is not required | NAPA | GW |
| CA5510009 | GROVELAND COMMUNITY SERV DIST | C | D3 | T2 | TUOLUMNE | SW |
| CA5000580 | GROVER LANDSCAPE WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2702202 | GROWERS COMPANY INC WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA5000596 | GROWERS DIRECT NUT COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2702484 | GROWERS SERVICE ASSN WS (ICE) | NTNC | D1 | T1 | MONTEREY | GW |
| CA2701153 | GROWERS TRANSPLANTING WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA5403089 | GRUMPY BEARS RETREAT | NC | NR | There are no treatment plants | TULARE | GW |
| CA1310016 | GSA CALEXICO PORT OF ENTRY | NTNC | D1 | T2 | IMPERIAL | SWP |
| CA3710048 | GSA TECATE PORT OF ENTRY | NTNC | D1 | TD | SAN DIEGO | GW |
| CA3790116 | GSA YSIDRO LAND POE | NP | N/A | There are no treatment plants | SAN DIEGO | |
| CA1910004 | GSWC - ARTESIA | C | D4 | T2 | LOS ANGELES | GW |
| CA1910011 | GSWC - BELL, BELL GARDENS | C | D4 | T2 | LOS ANGELES | SWP |
| CA1310003 | GSWC - CALIPATRIA | C | D3 | T4 | IMPERIAL | SWP |
| CA1910024 | GSWC - CLAREMONT | C | D4 | T3 | LOS ANGELES | SWP |
| CA1910030 | GSWC - CULVER CITY | C | D4 | T1 | LOS ANGELES | SWP |
| CA1910077 | GSWC - FLORENCE/GRAHAM | C | D3 | T2 | LOS ANGELES | SWP |
| CA1910195 | GSWC - HOLLYDALE | C | D2 | T2 | LOS ANGELES | GW |
| CA1910098 | GSWC - NORWALK | C | D4 | T2 | LOS ANGELES | SWP |
| CA1910155 | GSWC - SOUTHWEST | C | D5 | T2 | LOS ANGELES | SWP |
| CA1910072 | GSWC - WILLOWBROOK | C | D2 | T1 | LOS ANGELES | SWP |
| CA1910142 | GSWC-SAN DIMAS | C | D5 | T2 | LOS ANGELES | SWP |
| CA1910212 | GSWC-SOUTH ARCADIA | C | D3 | T2 | LOS ANGELES | GW |
| CA1910223 | GSWC-SOUTH SAN GABRIEL | C | D4 | T2 | LOS ANGELES | SWP |
| CA4000555 | GUADALUPE COOLING COMPANY | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4110005 | GUADALUPE VALLEY MID | C | D2 | There are no treatment plants | SAN MATEO | SWP |
| CA4290007 | GUADALUPE WASTE WATER TP | NP | There are no treatment plants | SANTA BARBARA | ||
| CA4210003 | GUADALUPE WATER DEPARTMENT | C | D2 | T1 | SANTA BARBARA | SWP |
| CA4990023 | GUALALA CSD | NP | There are no treatment plants | MENDOCINO | ||
| CA1000383 | GUARDIAN INDUSTRIES LLC | NTNC | D1 | T1 | FRESNO | GW |
| CA3700897 | GUATAY MUTUAL BENEFIT CORPORATION | C | D1 | TD | SAN DIEGO | GW |
| CA4901018 | GUNDLACH BUNDSCHU WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA2090001 | GUNNER RANCH WATER RECLAMATION FACILITY | NP | There are no treatment plants | MADERA | ||
| CA3901397 | GURDAWARA, GUR NANAK PARKASH WATER SYSTE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901164 | GURDJIEFF FOUNDATION | NC | NR | TD | SONOMA | GW |
| CA1000568 | GURDWARA GUR NANAK PARKASH - FRESNO | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2000969 | GURDWARA PARMESHAR DWAR | NC | NR | There are no treatment plants | MADERA | GW |
| CA5000507 | GURUDWARA GURU NANAK SAHIB | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5500005 | GUS S STEAKHOUSE | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3700073 | H & J WATER COMPANY | C | D1 | TD | SAN DIEGO | GW |
| CA1000673 | H AND R FACILITIES | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA3400240 | H C MUDDOX CO | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4000741 | H2O, INC | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA3301297 | HADLEY DATE GARDENS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2800025 | HAGAFEN CELLARS | NC | NR | Operator is not required | NAPA | GW |
| CA2400089 | HAGAMAN COUNTY PARK | NC | NR | TD | MERCED | GW |
| CA4000501 | HALCYON WATER SYSTEM | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1900715 | HALFWAY HOUSE CAFE | NC | D1 | There are no treatment plants | LOS ANGELES | SWP |
| CA4000747 | HALFWAY STATION | NC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA1800363 | HALLELUJAH JUNCTION MARKET | NC | NR | There are no treatment plants | LASSEN | GW |
| CA0300025 | HAM'S STATION | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4901405 | HAMEL FAMILY WINES | NC | NR | T1 | SONOMA | GW |
| CA3210010 | HAMILTON BRANCH CSD | C | D2 | TD | PLUMAS | GW |
| CA3301309 | HAMILTON SCHOOL | NTNC | D2 | TD | RIVERSIDE | GW |
| CA5000213 | HAMLET MOTEL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1000619 | HANDISTOP MARKET | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1600009 | HANFORD CHRISTIAN SCHOOL | NTNC | D1 | There are no treatment plants | KINGS | GW |
| CA1600607 | HANFORD FIRST BAPTIST CHURCH | NC | D1 | T1 | KINGS | GW |
| CA1610003 | HANFORD, CITY OF | C | D4 | T2 | KINGS | GW |
| CA3600481 | HANNA FLATS CAMPGROUND | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3901276 | HANOT FOUNDATION INC | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901442 | HANS FAHDEN VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA4900512 | HAPPY ACRES MUTUAL BENEFIT WATER SYSTEM | C | D1 | T1 | SONOMA | GW |
| CA4300551 | HAPPY ACRES MWC | C | D1 | TD | SANTA CLARA | GW |
| CA3400419 | HAPPY BAR | NC | NR | T2 | SACRAMENTO | GW |
| CA4710012 | HAPPY CAMP C.S.D. | C | D2 | T2 | SISKIYOU | SW |
| CA3400417 | HAPPY GARDEN RESTAURANT | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3400128 | HAPPY HARBOR (SWS) | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA1700511 | HARBIN HOT SPRINGS | NTNC | D1 | T2 | LAKE | GU |
| CA1700568 | HARBOR VIEW MUTUAL WATER COMPANY | C | D1 | T3 | LAKE | SW |
| CA2701498 | HARBOR VIEW WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5890005 | HARD ROCK FIRE MOUNTAIN HOTEL AND CASINO | NP | There are no treatment plants | YUBA | ||
| CA1600507 | HARDWICK WATER COMPANY | C | D1 | There are no treatment plants | KINGS | GW |
| CA5403150 | HARI'S MARKET | NC | NR | There are no treatment plants | TULARE | GW |
| CA4100607 | HARLEY FARMS GOAT DAIRY | NC | NR | T1 | SAN MATEO | GW |
| CA3301175 | HARMONY FARMS EVENT CENTER | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301055 | HARMONY HAVEN | C | D1 | TD | RIVERSIDE | GW |
| CA2900090 | HARMONY RIDGE LODGE | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2901528 | HARMONY RIDGE MARKET | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2900533 | HARMONY RIDGE RESORT | NC | NR | There are no treatment plants | NEVADA | GW |
| CA5100125 | HARMONY VILLAGE | C | D1 | T2 | SUTTER | GW |
| CA4000694 | HARMONY WATER WORKS | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3900581 | HARNEY LANE MIGRANT CENTER WS | NTNC | D1 | T2 | SAN JOAQUIN | GW |
| CA2702620 | HARRINGTON RD WS #07 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1009027 | HARRIS FARMS HEADQUARTERS | C | D1 | T2 | FRESNO | SW |
| CA1009028 | HARRIS FARMS SOUTH #101-144 | C | D1 | T2 | FRESNO | SW |
| CA1000213 | HARRIS FARMS/HORSE BARN | C | D1 | T2 | FRESNO | SW |
| CA1009078 | HARRIS FEEDING COMPANY | C | D1 | T2 | FRESNO | SW |
| CA4810030 | HARRIS MORAN SEED COMPANY | NTNC | D1 | TD | SOLANO | GW |
| CA5700537 | HARRIS MORAN SEED COMPANY - WATER | NTNC | D1 | T1 | YOLO | GW |
| CA1000526 | HARRIS RANCH BEEF CO | NTNC | D1 | TD | FRESNO | GW |
| CA1090017 | HARRIS RANCH INN AND RESTAURANT | NP | There are no treatment plants | FRESNO | ||
| CA1000214 | HARRIS RANCH RESTAURANT | NTNC | D1 | T2 | FRESNO | SW |
| CA2702704 | HARRIS RD WS #10 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2400226 | HARRIS WOOLF ALMONDS-BALLICO | NTNC | D1 | T1 | MERCED | GW |
| CA2700592 | HARRISON RD WS #01 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1503329 | HART CREEK ESTATES MUTUAL WATER CO. | C | D1 | T1 | KERN | GW |
| CA1500556 | HART FLAT BEAR MUTUAL WATER | C | D1 | There are no treatment plants | KERN | GW |
| CA5000133 | HART- RANSOM UNION SCHOOL & DISTRICT | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5400505 | HARTLAND CHRISTIAN CAMP | C | NR | TD | TULARE | GW |
| CA5403135 | HARTLAND WATER COMPANY | NC | NR | There are no treatment plants | TULARE | GW |
| CA0400003 | HARTLEY MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | BUTTE | GW |
| CA2702681 | HARTNELL RD WS #1 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2300802 | HARVEST AT MENDOSAS | NTNC | D1 | TD | MENDOCINO | GU |
| CA1500546 | HARVEST MOON MUTUAL WATER CO | C | D1 | TD | KERN | GW |
| CA1503219 | HASSON O S | NC | NR | There are no treatment plants | KERN | GW |
| CA4800612 | HASTINGS ISLAND HUNTING PRESERVE | NC | NR | There are no treatment plants | SOLANO | GW |
| CA4500309 | HAT CREEK HEREFORD RANCH RV PARK | NC | NR | TD | SHASTA | GW |
| CA4500023 | HAT CREEK HIGHLANDS MUTUAL WATER CO | C | D1 | T2 | SHASTA | SW |
| CA4500072 | HAT CREEK RESORT & RV PARK, LLC | NC | NR | T2 | SHASTA | SW |
| CA3900813 | HAVEN ACRES RIVER CLUB INC | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4500344 | HAVEN HUMANE WATER SYSTEM | NTNC | D2 | There are no treatment plants | SHASTA | GW |
| CA3901426 | HAVEN OF PEACE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901331 | HAWKES WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4900546 | HAWKINS WATER CO-CAL WATER SERVICE (PUC) | C | D1 | T1 | SONOMA | GW |
| CA1910047 | HAWTHORNE-CITY WATER DEPT. | C | D3 | T3 | LOS ANGELES | SWP |
| CA5700795 | HAY KINGDOM | NTNC | D1 | T1 | YOLO | GW |
| CA1300693 | HAYKINGDOM, INC. | NTNC | D1 | T3 | IMPERIAL | SW |
| CA3901217 | HAYNES BOARD & CARE HOME | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5301114 | HAYWARD FLAT CAMPGROUND | NC | NR | There are no treatment plants | TRINITY | GW |
| CA4910005 | HEALDSBURG, CITY OF | C | D3 | T3 | SONOMA | GU |
| CA4990013 | HEALDSBURG, CITY OF (RECYCLED WATER) | NP | NA | There are no treatment plants | SONOMA | |
| CA4010301 | HEARST MEMORIAL STATE BEACH | NC | D1 | T2 | SAN LUIS OBISPO | SWP |
| CA4010300 | HEARST MONUMENT STATE PARK | NTNC | D2 | T2 | SAN LUIS OBISPO | SW |
| CA1200509 | HEARTWOOD INSTITUTE | NC | NR | TD | HUMBOLDT | GW |
| CA1502629 | HEATH BRIMHALL P.O.A. | C | D1 | There are no treatment plants | KERN | GW |
| CA3100038 | HEATHER GLEN COMMUNITY SERVICE DIST | C | D1 | T2 | PLACER | SW |
| CA0900562 | HEATHER LAKE ROAD TRACT | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2900108 | HEAUSER'S PLAZA CENTER | NC | NR | There are no treatment plants | NEVADA | GW |
| CA5500113 | HEAVENLY HILLS CHRISTIAN CAMP | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3700071 | HEAVENLY OAKS | C | D1 | T2 | SAN DIEGO | GW |
| CA0900660 | HEAVENLY SKI CREEK STATION | NTNC | D1 | There are no treatment plants | EL DORADO | GW |
| CA0900665 | HEAVENLY SKI GONDOLA | NC | D2 | There are no treatment plants | EL DORADO | GW |
| CA0900587 | HEAVENLY SKI SKY DECK | NC | D2 | There are no treatment plants | EL DORADO | GW |
| CA1310301 | HEBER DUNES - SVRA | NC | NR | T2 | IMPERIAL | SWP |
| CA1310007 | HEBER PUBLIC UTILITY DISTRICT | C | D2 | T3 | IMPERIAL | SWP |
| CA1502012 | HECK CELLARS WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA3400475 | HEDGE TRAINING FACILITY | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4900612 | HEIGHTS MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4901388 | HEIRS OF MY DREAM WINERY, INC. | NC | NR | T1 | SONOMA | GW |
| CA3610112 | HELENDALE COMMUNITY SERVICE DISTRICT | C | D3 | TD | SAN BERNARDINO | GW |
| CA3601158 | HELENDALE CSD COMMUNITY CENTER | NC | NR | T1 | SAN BERNARDINO | GW |
| CA3690029 | HELENDALE CSD-RECYCLED WATER | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3710010 | HELIX WATER DISTRICT | C | D5 | T5 | SAN DIEGO | SW |
| CA3790010 | HELIX-RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA5403141 | HELLWIG PRODUCTS COMPANY INC | NTNC | D1 | TD | TULARE | GW |
| CA1000186 | HELM SCHOOL | C | D1 | TD | FRESNO | GW |
| CA0300099 | HELWIG WINERY | NC | NR | TD | AMADOR | GW |
| CA3310016 | HEMET, CITY OF | C | D3 | T2 | RIVERSIDE | SWP |
| CA1910053 | HEMLOCK MUTUAL WATER CO. | C | D2 | TD | LOS ANGELES | GW |
| CA2400088 | HENDERSON COUNTY PARK | NC | D1 | TD | MERCED | GW |
| CA1900764 | HENNINGER FLATS | NTNC | D1 | T2 | LOS ANGELES | SW |
| CA0900212 | HENNINGSEN LOTUS PARK WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2702805 | HENRY MILLER LIBRARY | NC | NR | TD | MONTEREY | GU |
| CA2400196 | HENRY MILLER RECLAMATION DISTRICT | NTNC | D1 | TD | MERCED | GW |
| CA4300998 | HENRY W COE STATE PARK - DOWDY RANCH | NC | NR | TD | SANTA CLARA | GW |
| CA5700516 | HERINGER ESTATES WINERY | NC | NR | There are no treatment plants | YOLO | GW |
| CA2300541 | HERITAGE HOUSE | NTNC | D1 | T2 | MENDOCINO | SW |
| CA4010012 | HERITAGE RANCH CSD | C | D2 | T3 | SAN LUIS OBISPO | SW |
| CA1805007 | HERLONG PUBLIC UTILITY DISTRICT | C | D2 | TD | LASSEN | GW |
| CA3610024 | HESPERIA WD | C | D5 | TD | SAN BERNARDINO | GW |
| CA2801016 | HESS WINERY | C | D1 | T2 | NAPA | GW |
| CA4901008 | HESSEL CHURCH | NC | NR | T1 | SONOMA | GW |
| CA3810003 | HHW&P MOCCASIN COMPOUND-SFPUC | C | D1 | T2 | SAN FRANCISCO | SWP |
| CA3810006 | HHW&P-EARLY INTAKE CPD-SFPUC | NC | NR | T2 | SAN FRANCISCO | SWP |
| CA3810005 | HHW&P-O'SHAUGHNESSY DAM CPD-SFPUC | NC | NR | T2 | SAN FRANCISCO | SW |
| CA3600123 | HI DESERT MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3610073 | HI DESERT WD | C | D4 | T2 | SAN BERNARDINO | GW |
| CA3690012 | HI DESERT WD - RECYCLED WATER | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3601105 | HI SAHARA OASIS | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1600265 | HICKEY PARK | NC | NR | There are no treatment plants | KINGS | GW |
| CA3601040 | HIDDEN ACRES | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4800564 | HIDDEN ACRES TRAILER VILLA | C | D1 | TD | SOLANO | GW |
| CA2702554 | HIDDEN CANYON RANCH MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3107327 | HIDDEN FALLS | NC | NR | There are no treatment plants | PLACER | GW |
| CA4400715 | HIDDEN FALLS GIRL SCOUT CAMP | NC | NR | T2 | SANTA CRUZ | SW |
| CA5200526 | HIDDEN HARBOR MARINA & RVP | C | D1 | TD | TEHAMA | GW |
| CA4400645 | HIDDEN MEADOW MUTUAL WATER CO | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2300831 | HIDDEN PINES CAMPGROUND | NC | D1 | T2 | MENDOCINO | GW |
| CA1210314 | HIDDEN SPRINGS CG-STATE PARKS | NC | NR | TD | HUMBOLDT | GW |
| CA3103836 | HIDDEN VALLEY COMMUNITY ASSOCIATION | C | D1 | There are no treatment plants | PLACER | SWP |
| CA1700710 | HIDDEN VALLEY FOOD MART | NC | NR | There are no treatment plants | LAKE | GW |
| CA1710015 | HIDDEN VALLEY LAKE CSD | C | D2 | T1 | LAKE | GW |
| CA3301044 | HIDDEN VALLEY NATURE CENTER | NC | D1 | Operator is not required | RIVERSIDE | GW |
| CA2700594 | HIDDEN VALLEY WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2000195 | HIDDEN VIEW HENSLEY LAKE | NC | D1 | T2 | MADERA | SW |
| CA2700606 | HIDDEN VIEWS MHP WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1805011 | HIGH DESERT ADULT & TEEN CHALLENGE | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA3601182 | HIGH DESERT DETENTION CENTER | C | D1 | T3 | SAN BERNARDINO | GW |
| CA1000569 | HIGH SIERRA CAMP | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2000536 | HIGH SIERRA MEADOW MUTUAL WATER | NC | NR | There are no treatment plants | MADERA | GW |
| CA1400506 | HIGH SIERRA WATER COMPANY | NC | NR | There are no treatment plants | INYO | GW |
| CA3301775 | HIGH VALLEYS WATER DISTRICT | C | D1 | There are no treatment plants | RIVERSIDE | GWP |
| CA0202525 | HIGHLAND LAKES #2 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202524 | HIGHLAND LKS #1 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA1410007 | HIGHLAND MOBILE HOME PARK | C | D1 | There are no treatment plants | INYO | GW |
| CA5200716 | HIGHLAND RANCH LLC | NC | NR | There are no treatment plants | TEHAMA | GW |
| CA3790111 | HIGHLAND VALLEY | NP | There are no treatment plants | SAN DIEGO | ||
| CA2790008 | HIGHLANDS INN - RECLAMATION | NP | There are no treatment plants | MONTEREY | ||
| CA1710003 | HIGHLANDS MUTUAL WATER COMPANY | C | D2 | T4 | LAKE | SW |
| CA4200982 | HIGHLINE ADVENTURES | NC | T1 | T2 | SANTA BARBARA | GW |
| CA0600032 | HIGHWAY 20 TRAILER PARK | NC | NR | There are no treatment plants | COLUSA | GW |
| CA4000563 | HIGUERA APARTMENTS | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4500341 | HILL COUNTRY COMMUNITY CLINIC & WELLNESS | NTNC | D1 | TD | SHASTA | GW |
| CA2300746 | HILL HOUSE L.L.C. | NC | D1 | T1 | MENDOCINO | GW |
| CA3107349 | HILLENBRAND FARMHAUS BREWERY | NC | NR | There are no treatment plants | PLACER | GW |
| CA2300832 | HILLS RANCH MUTUAL WATER COMPANY | C | D1 | T1 | MENDOCINO | GW |
| CA2800061 | HILLSIDE CHRISTIAN CENTER WATER SYSTEM | NC | NR | There are no treatment plants | NAPA | GW |
| CA5010007 | HILLSVIEW HOMES | C | D1 | TD | STANISLAUS | GW |
| CA2702163 | HILLTOP MWA | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2400330 | HILLTOP RANCH - TURLOCK ROAD | NTNC | D1 | TD | MERCED | GW |
| CA2400329 | HILLTOP RANCH-LOONEY ROAD | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA1500448 | HILLVIEW ACRES MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA2400229 | HILLVIEW PACKING-GUSTINE | NC | NR | TD | MERCED | GW |
| CA2400170 | HILMAR CHEESE COMPANY | NTNC | D1 | T2 | MERCED | GW |
| CA2410012 | HILMAR COUNTY WATER DISTRICT | C | D2 | T2 | MERCED | GW |
| CA4901309 | HILTON MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4810020 | HINES NURSERIES WINTERS NORTH | NTNC | D1 | TD | SOLANO | GW |
| CA4810033 | HINES NURSERY WINTERS SOUTH | NTNC | D1 | T2 | SOLANO | GW |
| CA3601144 | HINKLEY SENIOR REC CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5500210 | HISTORIC PRIEST STATION, LLC | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2702320 | HITCHCOCK RD WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702584 | HITCHCOCK RD WS #02 | NTNC | D1 | TD | MONTEREY | GW |
| CA3601106 | HITCHIN LUCERNE INC | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2000815 | HITCHING POST SALOON | NC | NR | There are no treatment plants | MADERA | GW |
| CA4300783 | HKN LLC | NTNC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA1000440 | HMC GROUP COLD STORAGE | NTNC | D1 | TD | FRESNO | GW |
| CA3700847 | HODGES RESERVOIR RECREATION AREA | NC | D1 | TD | SAN DIEGO | GW |
| CA2100581 | HOG ISLAND OYSTER CO. | NC | NR | T1 | MARIN | GW |
| CA3600589 | HOLCOMB VALLEY RANCH | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000730 | HOLDGRAFER & ASSOCIATES | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4500113 | HOLIDAY HARBOR INC | NTNC | D1 | TD | SHASTA | GW |
| CA3901360 | HOLIDAY HARBOR MARINA | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3400335 | HOLIDAY MOBILE VILLAGE | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3601108 | HOLLAND BURGER CAFE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4900548 | HOLLAND HEIGHTS MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1000317 | HOLLAND HULLING COMPANY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5700521 | HOLLAND MARKET | NC | NR | There are no treatment plants | YOLO | GW |
| CA1000557 | HOLLAND PARK WEST | NC | NR | There are no treatment plants | FRESNO | GW |
| CA0706034 | HOLLAND RIVERSIDE MARINA | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA1503537 | HOLLIDAY ROCK PLANT #2 | NC | D1 | TD | KERN | GW |
| CA3500904 | HOLLISTER RANCH ESTATES | C | D1 | T1 | SAN BENITO | GW |
| CA3590004 | HOLLISTER RW PROJECT | NP | There are no treatment plants | SAN BENITO | ||
| CA3510001 | HOLLISTER, CITY OF | C | D3 | TD | SAN BENITO | SWP |
| CA2701789 | HOLLY HILLS MWC | C | D1 | There are no treatment plants | MONTEREY | GWP |
| CA2300735 | HOLLY RANCH VILLAGE | C | D1 | T1 | MENDOCINO | GW |
| CA2702739 | HOLMAN RANCH WS | NC | NR | T2 | MONTEREY | GU |
| CA5105014 | HOLT 7518 | NTNC | D1 | T2 | SUTTER | GW |
| CA5100153 | HOLT OF CALIFORNIA | NTNC | D1 | T2 | SUTTER | GW |
| CA1310005 | HOLTVILLE, CITY OF | C | D3 | T3 | IMPERIAL | SWP |
| CA3901416 | HOME CHURCH, THE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000049 | HOME CREEK TRACT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1610007 | HOME GARDEN CSD | C | D2 | T2 | KINGS | GW |
| CA3310018 | HOME GARDENS COUNTY WD | C | D2 | There are no treatment plants | RIVERSIDE | SWP |
| CA1600603 | HOMEGROWN COLD STORAGE | NC | NR | There are no treatment plants | KINGS | GW |
| CA3400217 | HOMETOWN COLONIAL ESTATES LLC | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA1500564 | HOMETOWN WATER ASSOCIATION | C | D1 | There are no treatment plants | KERN | GW |
| CA0400060 | HONCUT ELEMENTARY SCHOOL | NTNC | D1 | T1 | BUTTE | GW |
| CA1503243 | HONDA PROVING CENTER | NTNC | D1 | T1 | KERN | GW |
| CA1800522 | HONEY LAKE CAMPGROUND | C | D1 | There are no treatment plants | LASSEN | GW |
| CA1200689 | HONEYDEW COUNTRY STORE | NC | NR | TD | HUMBOLDT | GW |
| CA2800034 | HONIG WINERY | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA3400101 | HOOD WATER MAINTENCE DIST [SWS] | C | D2 | Missing treatment classification in SDWIS | SACRAMENTO | GW |
| CA4901398 | HOOK & LADDER VINEYARDS AND WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901135 | HOOT OWL CREEK/ALEX. VALLEY VINEYARDS JV | NC | NR | TD | SONOMA | GW |
| CA4901348 | HOP KILN WINERY | NC | NR | T1 | SONOMA | GW |
| CA5400994 | HOPE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA0300062 | HOPE FOUNDATION/MORIAH HEIGHTS | C | D1 | T1 | AMADOR | GW |
| CA0202529 | HOPE VALLEY CG | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202520 | HOPE VALLEY RESORT | NC | NR | There are no treatment plants | ALPINE | GW |
| CA2400076 | HOPETON SCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA2310010 | HOPLAND PUBLIC UTILITY DISTRICT | C | D2 | T1 | MENDOCINO | GW |
| CA4900680 | HORICON SCHOOL | NTNC | D1 | T2 | SONOMA | SW |
| CA3901280 | HORIZON CHRISTIAN FELLOWSHIP | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4000770 | HORIZON LANE WATER SUPPLY | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA5401033 | HORIZON NUT LLC | NTNC | D1 | TD | TULARE | GW |
| CA2701142 | HORN WS | NC | NR | TD | MONTEREY | GW |
| CA4700513 | HORNBROOK C.S.D. | C | D1 | T2 | SISKIYOU | GW |
| CA4901426 | HORSE & PLOW TASTING ROOM | NC | NR | T1 | SONOMA | GW |
| CA1400184 | HORSESHOE MEADOW CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA1400532 | HORTON CREEK CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA3790121 | HORTON PLAZA CAMPUS | NP | There are no treatment plants | SAN DIEGO | ||
| CA2600609 | HOT CREEK RANCH | NC | NR | There are no treatment plants | MONO | GW |
| CA5402008 | HOT SPRINGS SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA1000206 | HOUGHTON-KEARNEY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA2000890 | HOUNDS TOOTH INN | NC | NR | There are no treatment plants | MADERA | GW |
| CA5500266 | HOUSEBOAT MINI MART | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2000600 | HOWARD ELEMENTARY SCHOOL | NTNC | D1 | T1 | MADERA | GW |
| CA2810001 | HOWELL MOUNTAIN MUTUAL WATER COMPANY | C | D2 | T3 | NAPA | SW |
| CA2800970 | HOWELL MOUNTAIN SCHOOL | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA5200007 | HOWELL'S LAKESIDE WATER CO. | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA0800556 | HRC C.S.D. | C | D1 | TD | DEL NORTE | GW |
| CA4900634 | HUCKLEBERRY MUTUAL WATER COMPANY | C | D1 | T1 | SONOMA | GW |
| CA1000050 | HUCKLEBERRY WATER DEVELOPMENT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1300679 | HUDSON RANCH POWER I LLC | NTNC | D1 | T3 | IMPERIAL | SW |
| CA2800063 | HUDSON VINEYARDS WINERY WATER SYSTEM | NC | NR | There are no treatment plants | NAPA | GW |
| CA1000663 | HUEBERT FARMS | NTNC | D1 | T2 | FRESNO | GW |
| CA1900886 | HUGHES-ELIZABETH LAKE UNIFIED SCHOOL DIS | NTNC | D1 | T2 | LOS ANGELES | GW |
| CA5000554 | HUGHSON NUT #2 | NTNC | D1 | TD | STANISLAUS | GW |
| CA5000470 | HUGHSON NUT COMPANY WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2400162 | HUGHSON NUT INC. - LIVINGSTON | NTNC | D1 | T1 | MERCED | GW |
| CA5010008 | HUGHSON, CITY OF | C | D2 | T2 | STANISLAUS | GW |
| CA4901244 | HUMANE SOCIETY OF SONOMA COUNTY | NTNC | D1 | T1 | SONOMA | GW |
| CA1210013 | HUMBOLDT BAY MWD | C | D4 | T4 | HUMBOLDT | GW |
| CA1210009 | HUMBOLDT C.S.D. | C | D4 | T2 | HUMBOLDT | GW |
| CA1206016 | HUMBOLDT CREAMERY | NTNC | D1 | T1 | HUMBOLDT | GW |
| CA0400123 | HUMBOLDT HIGHLANDS MUTUAL | C | D1 | There are no treatment plants | BUTTE | GW |
| CA0400149 | HUMBOLDT WOODLANDS MUTUAL | C | D1 | There are no treatment plants | BUTTE | GW |
| CA1090012 | HUME LAKE CHRISTIAN CAMP | NP | There are no treatment plants | FRESNO | ||
| CA1010013 | HUME LAKE CHRISTIAN CAMPS, INC | C | D2 | T3 | FRESNO | SW |
| CA2600600 | HUNEWILL GUEST RANCH | NC | NR | There are no treatment plants | MONO | GW |
| CA2600578 | HUNEWILL'S DOC AND AL'S RESORT | NC | NR | There are no treatment plants | MONO | GW |
| CA1500436 | HUNGRY GULCH MWC | C | D1 | TD | KERN | GW |
| CA1910254 | HUNGRY VALLEY STATE VEHICULAR REC AREA | NTNC | D1 | TD | LOS ANGELES | GW |
| CA2800018 | HUNNICUTT WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4800781 | HUNTER HILL SAFETY ROADSIDE REST AREA | NC | NR | TD | SOLANO | GW |
| CA4000788 | HUNTER RANCH GOLF COURSE | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA0800557 | HUNTER VALLEY CSD | C | D1 | There are no treatment plants | DEL NORTE | GW |
| CA5200527 | HUNTER'S FISHING RESORT | C | D1 | TD | TEHAMA | GW |
| CA1000319 | HUNTINGTON LAKE RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1910049 | HUNTINGTON PARK-CITY, WATER DEPT. | C | D4 | TD | LOS ANGELES | SWP |
| CA1000051 | HUNTINGTON PINES MUTUAL COMPANY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3104508 | HUPPE MOORE LANDSCAPE | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA3301564 | HURKEY CREEK - RIV. CO. PARKS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA1010044 | HURON, CITY OF | C | D2 | T3 | FRESNO | SW |
| CA5700597 | HUSICKS | NC | NR | There are no treatment plants | YOLO | GW |
| CA1900008 | HUTTOPIA PARADISE SPRINGS | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1700741 | HUTTOPIA SIX SIGMA CAMPGROUND | NC | D1 | T1 | LAKE | GW |
| CA1210019 | HYDESVILLE CO. W.D. | C | D2 | TD | HUMBOLDT | GW |
| CA3000519 | HYNES ESTATES MUTUAL WATER CO. | C | D1 | There are no treatment plants | ORANGE | GW |
| CA2300906 | I & E LATH MILL | NTNC | D1 | TD | MENDOCINO | GW |
| CA3400406 | I B E W TRAINING CENTER | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1000178 | I-5 AND HWY 198 REST AREA | NTNC | D1 | T2 | FRESNO | SW |
| CA1000177 | I-5 AND PANOCHE DEVELOPMENT | NTNC | D1 | T2 | FRESNO | SW |
| CA0901229 | ICE HOUSE CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900314 | ICE HOUSE RESORT | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3901428 | IDLE WILD MARKET | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3301161 | IDYLLWILD BREW PUB | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301327 | IDYLLWILD PINES CAMP | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3310019 | IDYLLWILD WATER DISTRICT | C | D2 | T2 | RIVERSIDE | GW |
| CA3390019 | IDYLLWILD WD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA1000007 | IDYLWILDE TRACT ASSOCIATION | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5710013 | IHS NOR CAL YOUTH TRMNT CTR(SACRED OAKS) | NTNC | D1 | T1 | YOLO | GW |
| CA1300652 | IID NORTH END CONSOLIDATION | NTNC | D1 | T3 | IMPERIAL | SW |
| CA1300588 | IID VILLAGE | C | D1 | T1 | IMPERIAL | GW |
| CA3900624 | IL VINETO | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1900707 | ILEAD AGUA DULCE CHARTER SCHOOL | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA4901233 | IMAGERY ESTATE WINERY | NC | NR | T1 | SONOMA | GW |
| CA4200854 | IMERYS FILTRATION MINERALS, INC | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA1000644 | IMMANUEL SPORTS COMPLEX | NC | NR | TD | FRESNO | GW |
| CA1300628 | IMPERIAL LAKES INC. | C | D1 | T3 | IMPERIAL | SW |
| CA3400190 | IMPERIAL MANOR MOBILEHOME COMMUNITY | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA1300549 | IMPERIAL VALLEY COLLEGE | NTNC | D2 | T2 | IMPERIAL | SW |
| CA1310006 | IMPERIAL, CITY OF | C | D3 | T3 | IMPERIAL | SWP |
| CA5400968 | IMPROVEMENT DISTRICT NO. 1 | C | D1 | T3 | TULARE | SW |
| CA5403090 | IN & OUT FOODMART | NC | D1 | T2 | TULARE | GW |
| CA4000835 | INDEPENDENCE WATER SYSTEM | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1700533 | INDIAN BEACH RESORT | NC | D1 | TD | LAKE | GW |
| CA1410005 | INDIAN CREEK CSD | C | D1 | There are no treatment plants | INYO | GW |
| CA3100062 | INDIAN CREEK GOLF COURSE | NC | NR | There are no treatment plants | PLACER | GW |
| CA5303002 | INDIAN CREEK TRAILER PARK | C | D1 | T2 | TRINITY | SW |
| CA0310300 | INDIAN GRINDING ROCK-CALAVERAS DISTRICT | NC | D1 | TD | AMADOR | GW |
| CA3701476 | INDIAN HILLS CAMP | C | D1 | TD | SAN DIEGO | GW |
| CA1500574 | INDIAN HILLS RANCH CAMPGROUND | NC | NR | There are no treatment plants | KERN | GW |
| CA3301330 | INDIAN OAKS TRAILER PARK | C | D1 | T1 | RIVERSIDE | GW |
| CA4700601 | INDIAN SCOTTY CAMPGROUND | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA2900553 | INDIAN SPRINGS CAMPGROUND | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2790017 | INDIAN SPRINGS RANCH RECYCLED WATER PROJ | NP | There are no treatment plants | |||
| CA1502418 | INDIAN WELLS LODGE | NC | NR | There are no treatment plants | KERN | GW |
| CA1510017 | INDIAN WELLS VALLEY W.D. | C | D3 | T3 | KERN | GW |
| CA1000187 | INDIANOLA SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA3310020 | INDIO WATER AUTHORITY | C | D5 | T2 | RIVERSIDE | GW |
| CA1910051 | INGLEWOOD- CITY, WATER DEPT. | C | D5 | T2 | LOS ANGELES | SWP |
| CA2400154 | INGOMAR PACKING | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA3690001 | INLAND EMPIRE UTILITIES AGENCY | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4000824 | INN AT OPOLO KITCHEN, THE | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA5700616 | INN AT PARK WINTERS | NC | NR | There are no treatment plants | YOLO | GW |
| CA2300625 | INN AT SCHOOLHOUSE CREEK | NC | D1 | TD | MENDOCINO | GW |
| CA1700702 | INNISFREE WATER COMPANY | C | D1 | TD | LAKE | GW |
| CA3600768 | INSTITUTE OF MENTAL PHYSICS | NC | NR | T2 | SAN BERNARDINO | GW |
| CA5403121 | INTERNATIONAL PAPER - EXETER BULK | NTNC | D1 | TD | TULARE | GW |
| CA1500491 | INTERSTATE 5 UTILITY COMPANY | NTNC | D1 | TD | KERN | GW |
| CA2110001 | INVERNESS PUBLIC UTILITY DIST | C | D1 | T2 | MARIN | SW |
| CA3901472 | INVESTORS OF KING ISLAND WATER SYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1410008 | INYO COUNTY PWD - INDEPENDENCE | C | D1 | TD | INYO | GWP |
| CA1410009 | INYO COUNTY PWD - LONE PINE | C | D2 | TD | INYO | GWP |
| CA1510036 | INYOKERN CSD | C | D1 | TD | KERN | GW |
| CA0300078 | IONE BAND OF MIWOK INDIANS | C | D1 | T1 | AMADOR | GW |
| CA2310012 | IRISH BEACH WATER DISTRICT | C | D1 | T2 | MENDOCINO | SW |
| CA4000203 | IRISH HILLS MUTUAL WATER CO | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA0300110 | IRON HUB WINERY | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0790006 | IRONHOUSE SD WATER RECYCLING FACILITY | NP | There are no treatment plants | CONTRA COSTA | ||
| CA3601015 | IRONWOOD CAMP | C | D1 | T2 | SAN BERNARDINO | GW |
| CA1110300 | IRVINE FINCH RIVER ACCESS | NC | NR | There are no treatment plants | GLENN | GW |
| CA2300819 | IRVINE LODGE REST STOP (CALTRANS) | NC | D1 | TD | MENDOCINO | GW |
| CA3010092 | IRVINE RANCH WATER DISTRICT | C | D5 | T5 | ORANGE | SW |
| CA3090003 | IRVINE RANCH WATER DISTRICT- RW | NP | N/A | There are no treatment plants | ORANGE | |
| CA1900035 | IRWINDALE BREWERY YARD (IBY) | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA1600017 | ISLAND UNION SCHOOL | NTNC | D1 | There are no treatment plants | KINGS | GW |
| CA3900653 | ISLANDER MARINA | C | D1 | T1 | SAN JOAQUIN | GW |
| CA2500911 | ISOT COMMUNITY WATER SYSTEM | C | D1 | TD | MODOC | GW |
| CA3901296 | ITALIAN ATHLETIC CLUB | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA2800052 | ITALICS WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1300667 | IV DESERT MUSEUM SOCIETY INC. | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA5410019 | IVANHOE PUBLIC UTILITY DIST | C | D2 | There are no treatment plants | TULARE | GW |
| CA5490007 | IVANHOE PUD | NP | There are no treatment plants | TULARE | ||
| CA3601181 | IVANPAH SOLAR THERMAL POWER PLANT | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3200510 | IVCSD CRESCENT MILLS | C | D1 | T1 | PLUMAS | GW |
| CA3210001 | IVCSD-GREENVILLE | C | D1 | TD | PLUMAS | GW |
| CA2701068 | IVERSON & JACKS APTS WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5000487 | J & J FARM FRESH PRODUCE & BAKERY | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3901417 | J B HUNT TRANSPORT INC | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA1503380 | J G BOSWELL TOMATO COMPANY LLC | NTNC | D1 | T1 | KERN | GW |
| CA3900742 | J M EAGLE (WS) | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4000768 | J M SIMS WATER SUPPLY | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA1000176 | J R SIMPLOT COMPANY | NTNC | D1 | TD | FRESNO | GW |
| CA4900904 | J VINEYARDS & WINERY | NTNC | D1 | T2 | SONOMA | GW |
| CA3200094 | J&J GRIZZLY RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3790110 | J. CRAIG VENTER LAB | NP | There are no treatment plants | SAN DIEGO | ||
| CA4901419 | J. RICKARDS WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA1500600 | J.G. BOSWELL COMPANY WATER SYSTEM | NTNC | D1 | T1 | KERN | GW |
| CA5700562 | JACK IN THE BOX #3465 | NC | NR | There are no treatment plants | YOLO | GW |
| CA3303104 | JACK IN THE BOX #5328 | NC | NR | TD | RIVERSIDE | GW |
| CA1700715 | JACK IN THE BOX - LAKEPORT, CA | NC | D1 | TD | LAKE | GW |
| CA1000459 | JACK'S GAS #2 | NC | NR | T2 | FRESNO | GW |
| CA2000880 | JACKASS ROCK CAMP | NC | NR | There are no treatment plants | MADERA | GW |
| CA2700889 | JACKS RANCH-RESERVATION ROAD WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA1300629 | JACKSON HIDE-A-WAY | C | D1 | There are no treatment plants | IMPERIAL | GW |
| CA3400424 | JACKSON SHELL (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA0300037 | JACKSON VALLEY IRRIGATION DISTRICT | C | D1 | T3 | AMADOR | SW |
| CA3901459 | JACOBS TERMINOUS MARKET | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1210021 | JACOBY CREEK CWD | C | D1 | There are no treatment plants | HUMBOLDT | GWP |
| CA3710011 | JACUMBA COMMUNITY SD | C | D1 | T1 | SAN DIEGO | GW |
| CA3701588 | JACUMBA VALLEY RANCH WATER COMPANY | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4901310 | JACUZZI WINERY | NC | NR | T1 | SONOMA | GW |
| CA4000849 | JADA VINEYARD AND WINERY | NC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA1700510 | JAGO BAY MUTUAL WATER COMPANY | NC | D1 | TD | LAKE | GW |
| CA3901108 | JAHANT FOOD N FUEL STOP | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3902212 | JAHANT WOODS CELLARS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503623 | JAKOV DULCICH & SONS WATER SYSTEM | NC | NR | T2 | KERN | GW |
| CA4200846 | JALAMA BEACH PARK | NC | D1 | TD | SANTA BARBARA | GW |
| CA0900522 | JALAPENOS WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4901445 | JAMES COURT WATER SYSTEM | C | D1 | T1 | SONOMA | GW |
| CA1502134 | JAMESON RANCH CAMP | NC | NR | There are no treatment plants | KERN | GW |
| CA5590003 | JAMESTOWN SANITARY DISTRICT | NP | There are no treatment plants | TUOLUMNE | ||
| CA4901027 | JAN KLEBE | NC | NR | T1 | SONOMA | GW |
| CA5800897 | JANDE COUNTRY MARKET | NC | NR | There are no treatment plants | YUBA | GW |
| CA1800012 | JANESVILLE CHEVRON | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1800577 | JANESVILLE ELEMENTARY SCHOOL | NTNC | D1 | TD | LASSEN | GW |
| CA1800383 | JANESVILLE FIRE HALL | NC | NR | T1 | LASSEN | GW |
| CA4400664 | JARDINES DEL VALLE | C | D1 | T1 | SANTA CRUZ | GW |
| CA4400611 | JARVIS MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2803879 | JARVIS VINEYARD | NC | NR | Operator is not required | NAPA | GW |
| CA1504002 | JASMINE VINEYARDS | NC | NR | T1 | KERN | GW |
| CA1504007 | JASMINE VINEYARDS COLD STORAGE | NTNC | D1 | T1 | KERN | GW |
| CA5403048 | JDH | NTNC | D1 | T2 | TULARE | GW |
| CA3400364 | JEAN HARVIE SCHOOL [SWS] | NTNC | D1 | T2 | SACRAMENTO | GW |
| CA0800825 | JED SMITH HOMEOWNERS ASSN. | C | D1 | TD | DEL NORTE | GW |
| CA0810303 | JEDEDIAH SMITH STATE PARK | NC | NR | TD | DEL NORTE | GW |
| CA0300089 | JEFF RUNQUIST WINERY | NC | NR | T1 | AMADOR | GW |
| CA3901107 | JEFFERSON ESD-JEFFERSON SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901165 | JEHOVAH S WITNESSES HALL | NC | NR | There are no treatment plants | SONOMA | GW |
| CA5000493 | JEHOVAH'S WITNESS SIERRA VISTA CONG | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5700821 | JEHOVAH'S WITNESSES - DAVIS | NC | NR | T1 | YOLO | GW |
| CA5700817 | JEHOVAH'S WITNESSES - KINGDOM HALL | NC | NR | T1 | YOLO | GW |
| CA5700820 | JEHOVAH'S WITNESSES - SOUTHPORT | NC | NR | There are no treatment plants | YOLO | GW |
| CA5200338 | JEHOVAH'S WITNESSES -CORNING | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA1000637 | JEHOVAH'S WITNESSES CHURCH - REEDLEY | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5500019 | JENNESS PARK CHRISTIAN CAMP | NC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5010044 | JENNINGS WWTP | NTNC | D1 | TD | STANISLAUS | GW |
| CA3901461 | JENSEN PRECAST | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3705056 | JESS MARTIN COUNTY PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3901443 | JESSIES GROVE WINERY | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3107323 | JESUIT RETREAT CENTER OF THE SIERRA | NC | NR | There are no treatment plants | PLACER | GW |
| CA3301939 | JEWEL DATE CO. INC. | NTNC | D1 | TD | RIVERSIDE | GW |
| CA4500327 | JGW RV PARK | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4700807 | JH RANCH | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA3901370 | JIMMYS ONE STOP | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5403046 | JIREH PACKING COMPANY-ORANGE COVE | NC | D1 | T2 | TULARE | GW |
| CA5403145 | JIREH PACKING GROUP - CUTLER | NTNC | D1 | T2 | TULARE | GW |
| CA1700733 | JITTER BEAN COFFEE | NC | D1 | TD | LAKE | GW |
| CA4901414 | JJAPT BLOOMFIELD | NC | NR | T1 | SONOMA | GW |
| CA2901551 | JOE MILLER RECREATIONAL AREA | NC | NR | There are no treatment plants | NEVADA | GW |
| CA5000582 | JOE'S FOOD MART WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000202 | JOE'S TRAVEL PLAZA (EH) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2400231 | JOHN B. SANFILIPPO & SON, INC. | NTNC | D1 | T1 | MERCED | GW |
| CA2000647 | JOHN HOVANNISIAN WATER SYSTEM | C | D1 | There are no treatment plants | MADERA | GW |
| CA2400172 | JOHN LATORACCA CORRECTIONAL FACILITY | C | D1 | T2 | MERCED | GW |
| CA1000453 | JOHNNY QUIK STORE #149 | NC | D1 | TD | FRESNO | GW |
| CA1100232 | JOHNS MANVILLE | NTNC | D1 | TD | GLENN | GW |
| CA3601176 | JOHNSON VALLEY COMMUNITY CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4901025 | JOHNSON'S BEACH RESORT | NC | NR | There are no treatment plants | SONOMA | GW |
| CA1800574 | JOHNSTONVILLE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA1805001 | JOHNSTONVILLE WATER SYSTEM | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA3200505 | JOHNSVILLE PUBLIC UTILITY DIST | NC | NR | T2 | PLUMAS | SW |
| CA3010071 | JOINT REGIONAL WATER SUPPLY SYSTEM | C | D4 | TD | ORANGE | SWP |
| CA3301385 | JOJOBA HILLS SKP RESORT, INC. | NTNC | D1 | TD | RIVERSIDE | GW |
| CA4500213 | JOLLY GIANT FLEA MARKET | NTNC | NR | TD | SHASTA | GW |
| CA4200814 | JONATA HOMEOWNERS ASSOCIATION | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4500220 | JONES VALLEY RESORT | NC | NR | TD | SHASTA | GW |
| CA4901084 | JORDAN VINEYARD & WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA1000520 | JOSAN AND JOSAN, INC. | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2800050 | JOSEPH CELLARS WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1503652 | JOSEPH COLD STORAGE LLC | NTNC | NR | T1 | KERN | GW |
| CA2400206 | JOSEPH GALLO CHEESE CO. | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA4300737 | JOSEPH GRANT COUNTY PARK | NC | D1 | TD | SANTA CLARA | GW |
| CA3610025 | JOSHUA BASIN WATER DISTRICT | C | D3 | TD | SAN BERNARDINO | GW |
| CA3600568 | JOSHUA INN | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601006 | JOSHUA TREE LAKE RV/CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3310502 | JOSHUA TREE NP - BLACK ROCK CANYON | NC | NR | TD | RIVERSIDE | GWP |
| CA3310501 | JOSHUA TREE NP - COTTONWOOD SPRINGS | NC | NR | Operator is not required | RIVERSIDE | GW |
| CA2700535 | JOST POST WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA5305006 | JOURNEY S END RESORT | NC | NR | TD | TRINITY | GW |
| CA1010060 | JPD REGIONAL POLICE TRAINING CENTER | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2400345 | JS WEST MILLING CO HILMAR RANCH | NTNC | D1 | T1 | MERCED | GW |
| CA4500328 | JUAN MEAN BURRITO WATER SYSTEM | NTNC | NR | TD | SHASTA | GW |
| CA5200588 | JUANITA COURT MUTUAL WATER | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA4700597 | JUANITA LAKE CAMPGROUND | NC | NR | TD | SISKIYOU | GW |
| CA3600139 | JUBILEE MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2300511 | JUG HANDLE CREEK FARM | NC | NR | T2 | MENDOCINO | GU |
| CA3700909 | JULIAN COMMUNITY SERVICES DISTRICT | C | D1 | T2 | SAN DIEGO | GW |
| CA3701217 | JULIAN OAKS CAMP | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5304209 | JUNCTION CITY SCHOOL | NTNC | D1 | T2 | TRINITY | SW |
| CA4700585 | JUNCTION ELEMENTARY SCHOOL | NTNC | D1 | T1 | SISKIYOU | GW |
| CA3301350 | JUNCTION MOTEL | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4500163 | JUNCTION SCHOOL DISTRICT | NTNC | D1 | TD | SHASTA | GW |
| CA2610004 | JUNE LAKE PUD - DOWN CANYON | C | D1 | T2 | MONO | SW |
| CA2610002 | JUNE LAKE PUD VILLAGE | C | D1 | T3 | MONO | SW |
| CA2600614 | JUNE MOUNTAIN SKI AREA - LOWER | NC | NR | There are no treatment plants | MONO | GW |
| CA2600615 | JUNE MOUNTAIN SKI AREA - UPPER | NC | NR | There are no treatment plants | MONO | GW |
| CA3600222 | JUNIPER RIVIERA CWD | C | D1 | TD | SAN BERNARDINO | GW |
| CA4700891 | JUNIPER VILLAGE FARM LABOR HOUSING | NC | D1 | There are no treatment plants | SISKIYOU | GW |
| CA3310021 | JURUPA COMMUNITY SD | C | D5 | T5 | RIVERSIDE | SWP |
| CA3390021 | JURUPA CSD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA1000570 | JUVENILE JUSTICE CAMPUS | C | D1 | There are no treatment plants | FRESNO | GW |
| CA4901461 | K BARR DAUGHTERS WATER SYSTEM | NC | There are no treatment plants | SONOMA | GW | |
| CA0800635 | KAMP KLAMATH CORP. | NC | NR | There are no treatment plants | DEL NORTE | GW |
| CA2400337 | KANDOLA FARMS PRODUCE, INC. | NC | NR | There are no treatment plants | MERCED | GW |
| CA2000629 | KANE RANCH WATER ASSOCIATION | NC | NR | There are no treatment plants | MADERA | GW |
| CA4700603 | KANGAROO LAKE CAMPGROUND | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA4901300 | KARAH ESTATE WINERY | NC | NR | TD | SONOMA | GW |
| CA1400131 | KATHERINA MULLER WATER SYSTEM | NC | NR | There are no treatment plants | INYO | GW |
| CA2800037 | KATHRYN HALL WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA0400151 | KEEFER CREEK ESTATES | C | D1 | There are no treatment plants | BUTTE | GW |
| CA1400036 | KEELER COMMUNITY SERVICE DISTRICT | C | D1 | T2 | INYO | GW |
| CA1400527 | KEELER YARD LADWP | NTNC | D1 | T4 | INYO | SW |
| CA1600303 | KEENAN FARMS INC. | NTNC | D1 | T2 | KINGS | SW |
| CA3301704 | KEENWILD STATION - USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4901286 | KELLER ESTATE WINERY | NC | NR | T1 | SONOMA | GW |
| CA3901306 | KELLOGG GARDEN PRODUCTS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900560 | KELLY MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA3601109 | KELLY'S MARKET | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1710007 | KELSEYVILLE CO WATERWORKS DISTRICT 3 | C | D2 | T1 | LAKE | GW |
| CA4000648 | KEN MAR GARDENS | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA1000611 | KEN'S SHOPPING CENTER | NC | NR | TD | FRESNO | GW |
| CA4901086 | KENDALL-JACKSON WINE CENTER | NC | NR | T1 | SONOMA | GW |
| CA2702496 | KENDALL-JACKSON WINERY WS | NTNC | D1 | TD | MONTEREY | GW |
| CA3301359 | KENNEDY GROCERY | NC | NR | TD | RIVERSIDE | GW |
| CA5403088 | KENNEDY MEADOWS GENERAL STORE | NC | NR | There are no treatment plants | TULARE | GW |
| CA5500213 | KENNEDY MEADOWS RESORT | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA4400717 | KENNOLYN CAMP | NC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4300521 | KENNON WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA4901399 | KENWOOD BPSC LLC | NC | NR | T2 | SONOMA | GW |
| CA4990026 | KENWOOD RANCH LLC | NP | There are no treatment plants | |||
| CA4910025 | KENWOOD VILLAGE WATER COMPANY (PUC) | C | D1 | T1 | SONOMA | GW |
| CA4900875 | KENWOOD VINEYARDS AND WINERY | NTNC | D1 | TD | SONOMA | GW |
| CA2800021 | KENZO WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1400034 | KEOUGH'S HOT SPRINGS | C | D1 | There are no treatment plants | INYO | GW |
| CA1000674 | KERMAN EVENT CENTER | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1010018 | KERMAN, CITY OF | C | D3 | TD | FRESNO | GW |
| CA1502317 | KERN CO P&R-GREENHORN MT. PARK WATER | NC | NR | TD | KERN | GW |
| CA1502319 | KERN CO P&R-LAKE WOOLLOMES WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA1502325 | KERN CO P&R-TEHACHAPI MT PARK WATER | NC | NR | There are no treatment plants | KERN | GW |
| CA1510040 | KERN COUNTY WATER AGENCY | C | D4 | T5 | KERN | SW |
| CA1502771 | KERN ENERGY | NTNC | D1 | T2 | KERN | GW |
| CA1500571 | KERN MOBILE ESTATES LLC | C | D1 | TD | KERN | GW |
| CA1504003 | KERN RIDGE GROWERS | NTNC | D1 | T1 | KERN | GW |
| CA1503668 | KERN RIVER'S EDGE CAMPGROUND RETREAT | NC | NR | T1 | KERN | GW |
| CA1590026 | KERN SANITATION AUTHORITY | NP | There are no treatment plants | KERN | ||
| CA1502327 | KERN VALLEY AIRPORT | NC | NR | TD | KERN | GW |
| CA1500252 | KERN VALLEY MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA1510802 | KERN VALLEY STATE PRISON | C | D2 | T2 | KERN | GW |
| CA1500364 | KERNVALE MUTUAL WATER CO | C | D1 | There are no treatment plants | KERN | GWP |
| CA1090008 | KESTERSON DEVELOPMENT | NP | There are no treatment plants | FRESNO | ||
| CA1690007 | KETTLEMAN CITY | NP | There are no treatment plants | KINGS | ||
| CA1610009 | KETTLEMAN CITY CSD | C | D1 | T3 | KINGS | SW |
| CA5000547 | KEYES 76 (WATER SYSTEM) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010009 | KEYES COMMUNITY SERVICES DIST. | C | D2 | T2 | STANISLAUS | GW |
| CA3105853 | KIDD LAKE | NC | NR | There are no treatment plants | PLACER | GW |
| CA4700814 | KIDDER CREEK ORCHARD CAMP | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA2000840 | KIDZ CAN 2 | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3400342 | KIEFER LANDFILL [SWS] | NTNC | D2 | There are no treatment plants | SACRAMENTO | GW |
| CA5000552 | KIERNAN BUSINESS CENTER | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000517 | KIERNAN/MCHENRY WATER COMPANY, INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3107324 | KILNER PARK | NC | NR | There are no treatment plants | PLACER | GW |
| CA4400851 | KIM SON MONASTERY | NC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA1503657 | KIMBERLINA HOUSING UNIT | NC | D1 | T2 | KERN | GW |
| CA2702812 | KIND REAL ESTATE, LLC WS | NTNC | D1 | TD | MONTEREY | GW |
| CA4200666 | KINECTA FCU | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA5403083 | KING FRESH PACKING & COOLING | NTNC | D1 | TD | TULARE | GW |
| CA3900666 | KING ISLAND RESORT PWS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901114 | KING ISLAND TRAILER PARK WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1206014 | KING RANGE ADMIN-BLM | NC | D1 | TD | HUMBOLDT | GW |
| CA0900564 | KING'S IV CONDOMINIUMS | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3400462 | KING'S SKATE COUNTRY | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3500916 | KINGDOM HALL (FALLON RD) | NC | NR | T1 | SAN BENITO | GW |
| CA5000500 | KINGDOM HALL JEHOVAH WITNESS | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000307 | KINGDOM HALL JEHOVAH WITNESS #1923 | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1000513 | KINGDOM HALL OF JEHOVAH S WITNESSES | NC | NR | There are no treatment plants | FRESNO | GW |
| CA0605005 | KINGDOM HALL OF JEHOVAH'S WITNESS-WMS | NC | NR | There are no treatment plants | COLUSA | GW |
| CA3106491 | KINGDOM HALL OF JEHOVAH'S WITNESSES, BER | NC | NR | There are no treatment plants | PLACER | GW |
| CA3901433 | KINGDOM HALL OF JEHOVAHS WITNESSES | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000316 | KINGS CANYON HIGH SCHOOL | NTNC | D1 | T1 | FRESNO | GW |
| CA1000267 | KINGS CANYON MOBILE HOME PARK | C | D1 | TD | FRESNO | GW |
| CA1000330 | KINGS CANYON RV RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5400548 | KINGS INN MOTEL | NC | D1 | TD | TULARE | GW |
| CA1000295 | KINGS PARK APARTMENTS | C | D1 | TD | FRESNO | GW |
| CA1600032 | KINGS REST MOTEL | NC | NR | There are no treatment plants | KINGS | GW |
| CA5400624 | KINGS RIVER ELEMENTARY SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA5400536 | KINGS RIVER ESTATES MUTUAL WATER COMPANY | C | D1 | TD | TULARE | GW |
| CA5401048 | KINGS RIVER GOLF COURSE | NC | NR | There are no treatment plants | TULARE | GW |
| CA1600015 | KINGS RIVER HARDWICK SCHOOL | NTNC | D1 | There are no treatment plants | KINGS | GW |
| CA5402024 | KINGS RIVER MARKET | NC | NR | There are no treatment plants | TULARE | GW |
| CA1000514 | KINGS RIVER PACKING COMPANY | NTNC | D1 | TD | FRESNO | GW |
| CA1000418 | KINGS RIVER PACKING-CENTERVILLE | NTNC | D1 | TD | FRESNO | GW |
| CA1000405 | KINGS RIVER POINT | C | D1 | T1 | FRESNO | GW |
| CA5400549 | KINGS RIVER RV RESORT, LLC | NC | NR | There are no treatment plants | TULARE | GW |
| CA1000629 | KINGS RIVER WINERY | NC | D1 | T1 | FRESNO | GW |
| CA1010019 | KINGSBURG, CITY OF | C | D3 | T2 | FRESNO | GW |
| CA1600270 | KINGSTON-LATON PARK | NC | NR | There are no treatment plants | KINGS | GW |
| CA3107334 | KINGVALE H2O | NC | NR | T1 | PLACER | GW |
| CA2900508 | KINGVALE PROPERTY OWNERS & WATER USERS | NTNC | D1 | T1 | NEVADA | GW |
| CA1910035 | KINNELOA IRRIGATION DIST. | C | D3 | TD | LOS ANGELES | GW |
| CA4901062 | KINNYBROOK MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA0900419 | KIOTA DIGGINGS WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1907015 | KIRK BUSINESS CENTER | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA0300076 | KIRKWOOD CAMPGROUND | NC | NR | There are no treatment plants | AMADOR | GW |
| CA5200520 | KIRKWOOD ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0210002 | KIRKWOOD MEADOWS PUBLIC UTILITY DISTRICT | C | D2 | T1 | ALPINE | GW |
| CA0202570 | KIRKWOOD SUNRISE GRILL | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0300051 | KIT CARSON LODGE | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4400905 | KITAYAMA BROTHERS | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4901254 | KJ CARNEROS HILLS WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA2000684 | KKMJLLC GRANITE MOUNTAIN RESORT | NC | NR | There are no treatment plants | MADERA | GW |
| CA3301756 | KKOTTONGNAE RETREAT CAMP | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4700875 | KLAMATH BASIN NATIONAL WILDLIFE REFUGE | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA0800548 | KLAMATH C.S.D. | C | D1 | There are no treatment plants | DEL NORTE | GW |
| CA0800615 | KLAMATH CAMPER CORRAL | NC | NR | There are no treatment plants | DEL NORTE | GW |
| CA0800632 | KLAMATH RIVER RV PARK | NC | NR | TD | DEL NORTE | GW |
| CA3901319 | KNAPHEIDE TRUCK EQUIPMENT COMPANY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1200817 | KNEELAND SCHOOL | NTNC | D1 | TD | HUMBOLDT | GW |
| CA4990025 | KNIGHTS BRIDGE WATER SYSTEM | NP | There are no treatment plants | SONOMA | ||
| CA5000008 | KNIGHTS FERRY COMM. SVC. DIST. | C | D1 | T2 | STANISLAUS | SW |
| CA5000401 | KNIGHTS FERRY RECREATION AREA | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5710004 | KNIGHTS LANDING SVC. DIST. | C | D2 | TD | YOLO | GW |
| CA0707547 | KNIGHTSEN COMMUNITY WATER SYSTEM | C | D1 | TD | CONTRA COSTA | GW |
| CA0706028 | KNIGHTSEN ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA3600504 | KNOLL ENTERPRISES | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2899001 | KNOLL HOUSE | NP | There are no treatment plants | NAPA | ||
| CA3000734 | KNOTT S BERRY FARM | NTNC | D2 | T1 | ORANGE | SWP |
| CA3400133 | KO-KET RESORT | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4900686 | KOA - CLOVERDALE | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4900737 | KOA - PETALUMA | NC | NR | T1 | SONOMA | GW |
| CA4200936 | KOEHLER WINERY | NC | D1 | TD | SANTA BARBARA | GW |
| CA4400709 | KOINONIA CONFERENCE GROUNDS | NC | NR | TD | SANTA CRUZ | GW |
| CA1710006 | KONOCTI COUNTY WATER DISTRICT | C | D2 | T4 | LAKE | SW |
| CA1710016 | KONOCTI HARBOR RESORT | NC | D1 | T3 | LAKE | SW |
| CA1700592 | KONOCTI SHORES | C | D1 | TD | LAKE | GW |
| CA4900999 | KORBEL BROTHERS WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA3901412 | KOREAN PRESBYTERIAN CHURCH | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3400135 | KORTHS PIRATES LAIR | C | D1 | T2 | SACRAMENTO | GW |
| CA3702181 | KQ RANCH RESORT | NC | D1 | TD | SAN DIEGO | GW |
| CA1500560 | KRANENBURG WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA1500475 | KRISTA MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA5601401 | KROTONA INSTITUTE | C | D1 | T1 | VENTURA | GW |
| CA3400399 | KUHN WATER SYSTEM | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA4901227 | KUNDE ESTATE WINERY | NTNC | D1 | TD | SONOMA | GW |
| CA0900300 | KYBURZ MUTUAL WATER COMPANY | C | D2 | T2 | EL DORADO | SW |
| CA0300077 | L'AZIENDA D'AGOSTINI | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0409179 | L. C. HUNTING CLUB | NC | NR | There are no treatment plants | BUTTE | GW |
| CA1910054 | LA CANADA IRRIGATION DIST. | C | D3 | TD | LOS ANGELES | SWP |
| CA4900743 | LA CANTERA RACQUET CLUB | NC | NR | TD | SONOMA | GW |
| CA5500201 | LA CASA LOMA RIVER STORE | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3710802 | LA CIMA FIRE CENTER | C | D1 | T1 | SAN DIEGO | GW |
| CA3301275 | LA COCINA | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4901232 | LA CREMA WINERY | NTNC | D1 | T1 | SONOMA | GW |
| CA4210024 | LA CUMBRE MUTUAL WATER CO | C | D3 | T1 | SANTA BARBARA | SWP |
| CA5000239 | LA GRANGE PARK-OHV | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1910218 | LA HABRA HEIGHTS CWD | C | D2 | TD | LOS ANGELES | SWP |
| CA4900817 | LA HACIENDA DEL TORO | NC | D1 | T1 | SONOMA | GW |
| CA4100559 | LA HONDA CENTER | NC | D1 | TD | SAN MATEO | GW |
| CA4400597 | LA MADRONA ATHLETIC CLUB | NC | NR | TD | SANTA CRUZ | GW |
| CA0310803 | LA MESA VINEYARDS | NC | D1 | TD | AMADOR | GW |
| CA1990020 | LA PAZ, MALIBU (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA3302026 | LA PLATA WATER SYSTEM | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3200175 | LA PORTE PINES COUNTRY CLUB | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200507 | LA PORTE WATER DISTRICT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1910060 | LA PUENTE VALLEY CWD | C | D3 | T3 | LOS ANGELES | GW |
| CA4200902 | LA PURISIMA GOLF COURSE | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2800525 | LA TIERRA HEIGHTS MUTUAL | C | D1 | T1 | NAPA | GW |
| CA3900991 | LA TORRES PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1300669 | LA VALLE SABBIA INC. | NTNC | D1 | T3 | IMPERIAL | SW |
| CA1910062 | LA VERNE, CITY WD | C | D4 | T3 | LOS ANGELES | SWP |
| CA2000601 | LA VINA SCHOOL | NTNC | D1 | TD | MADERA | GW |
| CA1995010 | LA/GLENDALE WATER RECLAMATION PLANT | NP | There are no treatment plants | LOS ANGELES | ||
| CA3610045 | LACSD - RIMFOREST | C | D1 | There are no treatment plants | SAN BERNARDINO | SWP |
| CA5403074 | LACTALIS HERITAGE DAIRY | NTNC | D1 | TD | TULARE | GW |
| CA3301186 | LADERA GOLF CLUB | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA1410004 | LADWP - BIG PINE | C | D1 | There are no treatment plants | INYO | GW |
| CA1410002 | LADWP - INDEPENDENCE | C | D1 | There are no treatment plants | INYO | GW |
| CA1410003 | LADWP - LONE PINE | C | D2 | There are no treatment plants | INYO | GW |
| CA1410510 | LADWP - MANZANAR | NC | D1 | There are no treatment plants | INYO | GW |
| CA4000221 | LAETITIA VINEYARD & WINERY INC | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4200934 | LAFOND WINERY | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA0810500 | LAGOON CREEK-REDWOOD NP | NC | NR | TD | DEL NORTE | GW |
| CA3010017 | LAGUNA BEACH COUNTY WD | C | D4 | TD | ORANGE | SWP |
| CA3400181 | LAGUNA DEL SOL INC | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3700422 | LAGUNA MOUNTAIN MUTUAL WATER CO. | C | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA4000705 | LAGUNA NEGRA MUTUAL WATER CO. | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA4290003 | LAGUNA SANITATION DISTRICT | NP | There are no treatment plants | SANTA BARBARA | ||
| CA2702009 | LAGUNA SECA RECREATION WS | NTNC | NR | There are no treatment plants | MONTEREY | GW |
| CA2700612 | LAGUNA SECA WC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3400397 | LAGUNA VILLAGE RV PARK | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4000664 | LAGUNA VISTA BOAT CLUB | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA5602403 | LAGUNA VISTA SCHOOL/OCEANVIEW SCHOOL DIS | NTNC | D1 | TD | VENTURA | GW |
| CA1800515 | LAHONTAN HEIGHTS HOME. ASSOC. | NC | NR | There are no treatment plants | LASSEN | GW |
| CA2800301 | LAIRD FAMILY ESTATE | NTNC | D1 | T1 | NAPA | GW |
| CA2801039 | LAIRD WINE STUDIO | NC | NR | There are no treatment plants | NAPA | GW |
| CA3210006 | LAKE ALMANOR COUNTRY CLUB MWC | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA0202509 | LAKE ALPINE IMPROVEMENT ASSOCIATION | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202517 | LAKE ALPINE REC. AREA | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0210001 | LAKE ALPINE WATER COMPANY | C | D2 | T2 | ALPINE | SW |
| CA3610005 | LAKE ARROWHEAD CSD | C | D4 | T3 | SAN BERNARDINO | SW |
| CA3690020 | LAKE ARROWHEAD CSD (RECYCLED WATER) | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4200911 | LAKE CACHUMA COUNTY PARK | NC | D1 | T2 | SANTA BARBARA | SW |
| CA5200618 | LAKE CALIFORNIA POA R.V. PARK | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4300522 | LAKE CANYON MUTUAL WATER COMPANY | C | D1 | T2 | SANTA CLARA | SW |
| CA0900317 | LAKE CHIQUITA MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1790002 | LAKE CO. SPEC. DISTR. RECLAMATION | NP | There are no treatment plants | LAKE | ||
| CA1700554 | LAKE COUNTY CSA 13 - KONO TAYEE | C | D1 | TD | LAKE | GW |
| CA1710018 | LAKE COUNTY CSA 2 - SPRING VALLEY | C | D2 | T2 | LAKE | SW |
| CA1710022 | LAKE COUNTY CSA 20 - SODA BAY | C | D3 | T3 | LAKE | SW |
| CA1710021 | LAKE COUNTY CSA 21 - NORTH LAKEPORT | C | D2 | T3 | LAKE | SW |
| CA3200118 | LAKE COVE RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA5510008 | LAKE DON PEDRO CSD | C | D2 | T2 | TUOLUMNE | SW |
| CA5500268 | LAKE DON PEDRO HOMEOWNERS | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2290002 | LAKE DON PEDRO WWTP | NP | There are no treatment plants | MARIPOSA | ||
| CA1100440 | LAKE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA1910056 | LAKE ELIZABETH MUTUAL WATER CO. | C | D2 | T2 | LOS ANGELES | SWP |
| CA1800511 | LAKE FOREST MUTUAL W.C. | C | D1 | There are no treatment plants | LASSEN | GW |
| CA5800805 | LAKE FRANCIS MUTUAL WATER COMPANY | C | D1 | T1 | YUBA | GW |
| CA5800866 | LAKE FRANCIS RESORT | NC | NR | There are no treatment plants | YUBA | GW |
| CA3301902 | LAKE FULMOR - USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3200122 | LAKE HAVEN RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3310022 | LAKE HEMET MWD | C | D5 | TD | RIVERSIDE | GW |
| CA3310080 | LAKE HEMET MWD-CAMP GROUND | C | D1 | TD | RIVERSIDE | GW |
| CA3310052 | LAKE HEMET-GARNER VALLEY | C | D1 | Operator is not required | RIVERSIDE | GW |
| CA3700900 | LAKE HENSHAW RESORT INC. | C | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA1503270 | LAKE ISABELLA COMMUNITY SERVICES DIST | C | D1 | There are no treatment plants | KERN | GWP |
| CA1500464 | LAKE ISABELLA KOA CAMPGROUND | NC | NR | There are no treatment plants | KERN | GW |
| CA3600785 | LAKE JODIE WATER SYSTEM | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA0400014 | LAKE MADRONE WATER DISTRICT | C | D1 | There are no treatment plants | BUTTE | GW |
| CA3700903 | LAKE MORENA COUNTY PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3700924 | LAKE MORENA VIEWS MWC | C | D1 | T1 | SAN DIEGO | GW |
| CA3700923 | LAKE MORENA'S OAK SHORES MWC | C | D1 | T2 | SAN DIEGO | GW |
| CA5800809 | LAKE OF THE SPRINGS | NTNC | D2 | There are no treatment plants | YUBA | GW |
| CA1500459 | LAKE OF THE WOODS MOBILE VILLAGE | C | D1 | There are no treatment plants | KERN | GW |
| CA1510023 | LAKE OF THE WOODS MWC | C | D2 | T2 | KERN | GW |
| CA1700597 | LAKE PILLSBURY RANCH WATER COMPANY | NC | D1 | T2 | LAKE | SW |
| CA1700599 | LAKE PILLSBURY RESORT & MARINA INC | NC | D1 | T2 | LAKE | SW |
| CA5601706 | LAKE PIRU PARK - UWCD | NC | NR | T2 | VENTURA | SW |
| CA1400035 | LAKE SABRINA BOAT LANDING | NC | NR | TD | INYO | GW |
| CA2701906 | LAKE SAN ANTONIO MHP WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4500345 | LAKE SHASTA LODGE | NC | D2 | There are no treatment plants | SHASTA | GW |
| CA4500101 | LAKE SHASTA PINES RV PARK & CAMPGROUND | C | D1 | TD | SHASTA | GW |
| CA4710013 | LAKE SHASTINA C.S.D | C | D2 | There are no treatment plants | SISKIYOU | GW |
| CA4700501 | LAKE SISKIYOU CAMPGROUND | NC | NR | T2 | SISKIYOU | SW |
| CA4700549 | LAKE SISKIYOU M.W.C. | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4800651 | LAKE SOLANO PARK | NC | NR | TD | SOLANO | GW |
| CA4901112 | LAKE SONOMA MARINA | NC | NR | T2 | SONOMA | SW |
| CA2900513 | LAKE SPAULDING CAMPGROUND | NC | NR | There are no treatment plants | NEVADA | GW |
| CA5400660 | LAKE SUCCESS MOBILE LODGE | C | D1 | T2 | TULARE | GW |
| CA5500049 | LAKE TULLOCH CAMPGRD & MARINA | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA2300606 | LAKE VIEW MUTUAL WATER CO. | C | D1 | TD | MENDOCINO | GW |
| CA3700919 | LAKE WOHLFORD RESORT | C | D1 | T2 | SAN DIEGO | SW |
| CA2400114 | LAKE YOSEMITE COUNTY PARK | NC | NR | There are no treatment plants | MERCED | GW |
| CA4500078 | LAKEHEAD CAMPGROUND & RV PARK | NC | NR | TD | SHASTA | GW |
| CA4500357 | LAKEHEAD GAS & FOOD | NC | D2 | There are no treatment plants | SHASTA | GW |
| CA4500016 | LAKEHEAD SUBD MUTUAL WATER CO | C | D1 | TD | SHASTA | GW |
| CA1700712 | LAKEPORT CINEMAS | NC | D1 | TD | LAKE | GW |
| CA1710004 | LAKEPORT, CITY OF | C | D2 | T4 | LAKE | SW |
| CA1790004 | LAKEPORT, CITY OF (RECYLED WATER) | NP | There are no treatment plants | LAKE | ||
| CA1000261 | LAKERIDGE CAMPING/BOATING RSRT | NC | NR | TD | FRESNO | GW |
| CA4500014 | LAKESHORE HEIGHTS MUTUAL WATER | C | D1 | T2 | SHASTA | SW |
| CA1000172 | LAKESHORE RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4500080 | LAKESHORE RV PARK | NC | NR | TD | SHASTA | GW |
| CA4500178 | LAKESHORE VILLA CENTER | NC | NR | TD | SHASTA | GW |
| CA4500008 | LAKESHORE VILLA MUTUAL WATER CO | C | D2 | T2 | SHASTA | GW |
| CA1700677 | LAKESIDE COUNTY PARK | NC | D1 | TD | LAKE | GW |
| CA1600013 | LAKESIDE ELEMENTARY SCHOOL | NTNC | D1 | T1 | KINGS | GW |
| CA0500075 | LAKESIDE MOBILE ESTATES | C | NR | There are no treatment plants | CALAVERAS | GW |
| CA0910019 | LAKESIDE PARK ASSOCIATION | C | D1 | T2 | EL DORADO | SW |
| CA1502154 | LAKESIDE SCHOOL | NTNC | D1 | TD | KERN | GW |
| CA4300779 | LAKESIDE SD-LAKESIDE SCHOOL | NTNC | D1 | TD | SANTA CLARA | GW |
| CA3710013 | LAKESIDE WD | C | D4 | T2 | SAN DIEGO | SWP |
| CA4500013 | LAKESIDE WOODS MUTUAL WATER CO | C | D1 | T1 | SHASTA | GW |
| CA4400517 | LAKEVIEW APARTMENTS | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA3200216 | LAKEVIEW GAS & FOOD | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3103835 | LAKEVIEW HILLS COMMUNITY ASSOC | C | D1 | There are no treatment plants | PLACER | SWP |
| CA1000071 | LAKEVIEW IMPROVEMENT ASSOCIATION #1 | NC | D1 | TD | FRESNO | GW |
| CA1500525 | LAKEVIEW RANCHOS MUTUAL WATER COMPANY | C | D1 | T2 | KERN | GW |
| CA1000318 | LAKEVIEW RESORT | NC | NR | T1 | FRESNO | GW |
| CA5301009 | LAKEVIEW TERRACE RESORT | NC | NR | TD | TRINITY | GU |
| CA1910239 | LAKEWOOD - CITY, WATER DEPT. | C | D5 | T2 | LOS ANGELES | GW |
| CA5000117 | LAKEWOOD MEMORIAL PARK & FUNERAL HOME | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2000855 | LAMANUZZI PANTALEO CS DEHY | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA4901465 | LAMBERT BRIDGE WINERY | NC | NR | T1 | SONOMA | GW |
| CA1510012 | LAMONT PUBLIC UTILITY DIST | C | D3 | T2 | KERN | GW |
| CA1590006 | LAMONT PUD | NP | There are no treatment plants | KERN | ||
| CA0790003 | LAMORINDA RECYCLED WATER PROJECT | NP | There are no treatment plants | CONTRA COSTA | ||
| CA1000053 | LANARE COMMUNITY SERVICES DIST | C | D1 | There are no treatment plants | FRESNO | GW |
| CA4901401 | LANCASTER ESTATE WINERY | NC | NR | T1 | SONOMA | GW |
| CA1909645 | LANCASTER NATIONAL SOCCER CENTER | NC | D1 | T1 | LOS ANGELES | GW |
| CA1900038 | LANCASTER PARK MOBILE HOME PARK | C | D1 | T1 | LOS ANGELES | GW |
| CA1900808 | LANCASTER WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1990019 | LANCASTER, CITY OF (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA4400530 | LAND OF MEDICINE BUDDHA | NTNC | D1 | T1 | SANTA CRUZ | GW |
| CA1910246 | LAND PROJECTS MUTUAL WATER CO. | C | D2 | TD | LOS ANGELES | GW |
| CA1900809 | LANDALE MUTUAL WATER COMPANY | C | D1 | T1 | LOS ANGELES | GW |
| CA5000595 | LANDER VETERINARY CLINIC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4901133 | LANDMARK VINEYARDS, LTD. | NC | NR | TD | SONOMA | GW |
| CA1500424 | LANDS OF PROMISE MWC | C | D1 | There are no treatment plants | KERN | GW |
| CA1900820 | LANG RANCH SHOPPING CENTER | NC | D1 | T1 | LOS ANGELES | GW |
| CA1700716 | LANGTRY FARMS | NC | D1 | T2 | LAKE | SW |
| CA4900582 | LARKIN WOODS MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SONOMA | GU |
| CA2800044 | LARKMEAD VINEYARDS | NC | D1 | TD | NAPA | GW |
| CA1200831 | LARRUPIN CAFE | NC | NR | T2 | HUMBOLDT | SW |
| CA1000641 | LARRY A SHEHADEY DAIRY | NTNC | NR | There are no treatment plants | FRESNO | GW |
| CA3901354 | LARSEN RANCH 39-40/WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1700698 | LARSEN'S OFFICE COMPLEX | NC | D1 | T1 | LAKE | GW |
| CA4400613 | LAS COLINAS ROAD & WATER ASSN | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4210305 | LAS CRUCES STATE PARK | NC | NR | T2 | SANTA BARBARA | GU |
| CA4400631 | LAS CUMBRES MUTUAL WATER CO | C | D1 | T3 | SANTA CRUZ | SW |
| CA1000054 | LAS DELTAS MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | FRESNO | GWP |
| CA1910061 | LAS FLORES WATER CO. | C | D3 | There are no treatment plants | LOS ANGELES | SWP |
| CA5200502 | LAS FLORES WATER WORKS | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA2190006 | LAS GALLINAS VALLEY SANITARY DISTRICT | NP | NA | There are no treatment plants | MARIN | |
| CA2790010 | LAS PALMAS - RW DISTRIBUTION | NP | There are no treatment plants | MONTEREY | ||
| CA2790016 | LAS PALMAS - RW PRODUCTION (CALAM) | NP | There are no treatment plants | |||
| CA0800700 | LAS PALMAS MOBILE HOME PARK | C | D1 | TD | DEL NORTE | GW |
| CA4200572 | LAS POSITAS MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA4000815 | LAS VENTANAS RANCH | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1995001 | LAS VIRGENES MUNICIPAL WATER DISTRICT | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910225 | LAS VIRGENES MWD | C | D5 | T4 | LOS ANGELES | SW |
| CA1800202 | LASSEN CO. OFF. OF EDUCATION | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA1800585 | LASSEN COMMUNITY COLLEGE DIST. | NTNC | D2 | T1 | LASSEN | GW |
| CA1810003 | LASSEN COUNTY WATER DISTRICT #1 | C | D1 | TD | LASSEN | GW |
| CA4500329 | LASSEN LANDING | NC | NR | There are no treatment plants | SHASTA | GW |
| CA1800524 | LASSEN MOBILE HOME PARK | C | D1 | There are no treatment plants | LASSEN | GW |
| CA4500210 | LASSEN PINES MUTUAL WATER CO INC | C | D1 | T2 | SHASTA | GU |
| CA1800582 | LASSEN RV PARK & CAMPGROUND | NC | NR | There are no treatment plants | LASSEN | GW |
| CA5200538 | LASSEN VIEW UNION ELEMENTARY SCHOOL DIST | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5200548 | LASSEN VIEW WATER DISTRICT | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5210500 | LASSEN VNP - BUTTE LAKE | NC | NR | T2 | TEHAMA | SW |
| CA5210502 | LASSEN VNP - DRAKESBAD | NC | NR | TD | TEHAMA | GW |
| CA5210503 | LASSEN VNP - HEADQUARTERS | NTNC | D1 | T2 | TEHAMA | SW |
| CA5210504 | LASSEN VNP - LOST CREEK | NC | NR | T2 | TEHAMA | SW |
| CA5210505 | LASSEN VNP - MANZANITA LAKE | NC | NR | T2 | TEHAMA | SW |
| CA5210501 | LASSEN VNP - SOUTHWEST/CHALET | NC | NR | T2 | TEHAMA | SW |
| CA5210506 | LASSEN VNP - SUMMIT LAKE | NC | NR | T2 | TEHAMA | SW |
| CA4901383 | LASSETER FAMILY WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3200085 | LAST CHANCE SALOON | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1010020 | LATON COMMUNITY SERVICES DISTRICT | C | D2 | There are no treatment plants | FRESNO | GW |
| CA1000189 | LATON HIGH SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA0900410 | LATROBE ELEMENTARY SCHOOL | NTNC | D2 | T3 | EL DORADO | GW |
| CA4901366 | LAURA CHENEL'S CHEVRE INC. | NTNC | D1 | T2 | SONOMA | GW |
| CA4000206 | LAUREATE WATER COMPANY | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA4400528 | LAUREL COMMUNITY LEAGUE | C | D1 | T1 | SANTA CRUZ | GU |
| CA3600105 | LAUREL PINES CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4710500 | LAVA BEDS NATIONAL MONUMENT | NC | NR | TD | SISKIYOU | GW |
| CA3301567 | LAWLER PARK - RIV.COUNTY PARKS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4900588 | LAWNDALE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SONOMA | GWP |
| CA0110701 | LAWRENCE LIVERMORE NATIONAL LAB SITE 200 | NTNC | D3 | There are no treatment plants | ALAMEDA | SWP |
| CA3910025 | LAWRENCE LIVERMORE NATIONAL LAB-SITE 300 | NTNC | D2 | T2 | SAN JOAQUIN | SWP |
| CA1400525 | LAWS TOWN INYO COUNTY | NTNC | D1 | TD | INYO | GWP |
| CA1400102 | LAWS TOWN LADWP | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA2110008 | LAWSON S LANDING | C | D1 | TD | MARIN | GW |
| CA2310011 | LAYTONVILLE COUNTY WATER DISTRICT | C | D2 | T2 | MENDOCINO | GW |
| CA5000048 | LAZY B MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3700937 | LAZY H MUTUAL WATER COMPANY | C | D1 | TD | SAN DIEGO | GW |
| CA5400756 | LAZY J RANCH MOTEL | NC | NR | There are no treatment plants | TULARE | GW |
| CA4500081 | LAZY LANDING MOBILE HOME PARK | C | D1 | TD | SHASTA | GW |
| CA1700609 | LAZY S MOBILE RANCH | C | D1 | T2 | LAKE | SW |
| CA3000778 | LAZY W RANCH WATER SYSTEM | NC | NR | T1 | ORANGE | GW |
| CA1503230 | LDS CHURCH - FRAZIER PARK | NC | NR | There are no treatment plants | KERN | GWP |
| CA2400234 | LDS CHURCH ATWATER | NC | NR | There are no treatment plants | MERCED | GW |
| CA2210942 | LDS CHURCH MARIPOSA | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA2400327 | LDS CHURCH MERCED | NC | NR | There are no treatment plants | MERCED | GW |
| CA1900081 | LE CHENE RESTAURANT WATER SYSTEM | NC | D1 | T1 | LOS ANGELES | GW |
| CA2410011 | LE GRAND COMM SERVICES DIST | C | D2 | TD | MERCED | GW |
| CA1700601 | LE TRIANON RESORT | NC | D1 | TD | LAKE | GW |
| CA2700624 | LEAFWOOD COMMUNITY WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3700001 | LEAPIN' LIZARD RV RANCH | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4300859 | LEARNING SERVICES CORP. | NTNC | D1 | TD | SANTA CLARA | GW |
| CA2600563 | LEAVITT CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA1810004 | LEAVITT LAKE CSD | C | D1 | TD | LASSEN | GW |
| CA1510051 | LEBEC COUNTY WATER DISTRICT | C | D2 | TD | KERN | GW |
| CA4901245 | LEDSON WINERY AND VINEYARDS | NC | NR | TD | SONOMA | GW |
| CA2610005 | LEE VINING PUBLIC UTILITY DISTRICT | C | D1 | T2 | MONO | GW |
| CA1400508 | LEE'S FRONTIER | NC | There are no treatment plants | INYO | GW | |
| CA1000648 | LEE'S MARKET | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5100180 | LEGACY BAPTIST CHURCH | NC | D1 | T1 | SUTTER | GW |
| CA5403080 | LEGACY PACKING AND COLD STORAGE | NTNC | D1 | T1 | TULARE | GW |
| CA2300785 | LEGGETT VALLEY SCHOOL | NTNC | D1 | T2 | MENDOCINO | GW |
| CA2000534 | LEISURE ACRES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | MADERA | GW |
| CA1910066 | LEISURE LAKE MOBILE ESTATES | C | D1 | T2 | LOS ANGELES | GW |
| CA4900832 | LEISURE MOBILE HOME PARK | C | D1 | TD | SONOMA | GW |
| CA5500053 | LEISURE PINES MUTUAL WATER CO | C | D1 | T2 | TUOLUMNE | GW |
| CA2300633 | LEISURE TIME RV PARK | NC | D1 | TD | MENDOCINO | GW |
| CA5500191 | LELAND CREEK IMPROVEMENT ASSOC | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA5500054 | LELAND MEADOW WATER DISTRICT | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA5400616 | LEMON COVE WATER COMPANY | C | D1 | TD | TULARE | GW |
| CA2300900 | LEMONS' MARKET | NC | NR | TD | MENDOCINO | GW |
| CA1610700 | LEMOORE NAVAL AIR STATION | C | D3 | T3 | KINGS | SW |
| CA1610005 | LEMOORE, CITY OF | C | D3 | T3 | KINGS | GW |
| CA0900113 | LEONI MEADOWS CAMP | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1502320 | LERDO SHERIFF S FACILITY | C | D2 | T2 | KERN | GW |
| CA3790103 | LEUCADIA CWD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA2801042 | LEWIS CELLARS | NC | NR | Operator is not required | NAPA | GW |
| CA5301002 | LEWISTON COMMUNITY SERVICES DISTRICT | C | D1 | T2 | TRINITY | SW |
| CA2702259 | LHOIST NORTH AMERICA WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA2800811 | LIANA ESTATE | NC | NR | Operator is not required | NAPA | GW |
| CA3610118 | LIBERTY -YERMO | C | D2 | TD | SAN BERNARDINO | GW |
| CA0409193 | LIBERTY 1ST WARD MEETING HOUSE | NC | NR | There are no treatment plants | BUTTE | GW |
| CA5000426 | LIBERTY BAPTIST CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5403146 | LIBERTY ELEMENTARY SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA2400051 | LIBERTY PACKING COMPANY LLC | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA3000618 | LIBERTY PARK WATER ASSOCIATION | C | D1 | There are no treatment plants | ORANGE | GW |
| CA4900714 | LIBERTY SCHOOL | NTNC | D1 | T2 | SONOMA | GW |
| CA3610003 | LIBERTY UTILITIES (AV RANCHOS) CORP. | C | D5 | TD | SAN BERNARDINO | GW |
| CA1910211 | LIBERTY UTILITIES - BELLFLOWER-NORWALK | C | D5 | T1 | LOS ANGELES | SWP |
| CA1910021 | LIBERTY UTILITIES - COMPTON | C | D3 | T1 | LOS ANGELES | SWP |
| CA1910161 | LIBERTY UTILITIES - LYNWOOD | C | D4 | T2 | LOS ANGELES | SWP |
| CA1910241 | LIBERTY UTILITIES - MESA CREST | C | D2 | There are no treatment plants | LOS ANGELES | SWP |
| CA3600010 | LIBERTY-BELLVIEW HEIGHTS | C | D1 | TD | SAN BERNARDINO | GW |
| CA5000141 | LIBITZKY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4901381 | LICHAU HYLANDS MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4300909 | LICK OBSERVATORY-UCSC | C | D1 | T2 | SANTA CLARA | SW |
| CA4901190 | LIETO WATER SYSTEM (REACH CHARTR SCHOOL) | NTNC | D1 | T1 | SONOMA | GW |
| CA1500579 | LIFE WATER CO-OP | C | D1 | TD | KERN | GW |
| CA2000949 | LIFEBRIDGE COMMUNITY CHURCH | NC | NR | There are no treatment plants | MADERA | GW |
| CA3410035 | LIGHTHOUSE MARINA RESTAURANT & RESORT | NC | NR | T2 | SACRAMENTO | GW |
| CA2300653 | LIGHTHOUSE POINTE | NC | D1 | TD | MENDOCINO | GW |
| CA3600412 | LIGHTHOUSE TRAILER RESORT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2500505 | LIKELY PLACE GOLF AND RV RESORT | NC | NR | There are no treatment plants | MODOC | GW |
| CA0500027 | LILI VALLEY WATER CO. | C | NR | There are no treatment plants | CALAVERAS | GW |
| CA1900913 | LILY OF THE VALLEY MOBILE VILLAGE | C | D1 | T1 | LOS ANGELES | GW |
| CA5690015 | LIMONEIRA COMPANY WASTEWATER | NP | There are no treatment plants | |||
| CA5601201 | LIMONEIRA RANCH #1 | C | D2 | There are no treatment plants | VENTURA | GWP |
| CA1910063 | LINCOLN AVENUE WATER CO. | C | D4 | T2 | LOS ANGELES | SW |
| CA3400137 | LINCOLN CHAN-HOME RANCH | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3107342 | LINCOLN HIGH SCHOOL FARM | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA5810002 | LINDA COUNTY WATER DISTRICT | C | D3 | T2 | YUBA | GW |
| CA5890004 | LINDA COUNTY WD RECYCLED WATER | NP | There are no treatment plants | YUBA | ||
| CA2800527 | LINDA FALLS TERRACE MUTUAL | C | D1 | TD | NAPA | GW |
| CA2800528 | LINDA VISTA MUTUAL WATER CO | C | D1 | T1 | NAPA | GW |
| CA3910019 | LINDEN COUNTY WATER DISTRICT | C | D2 | TD | SAN JOAQUIN | GW |
| CA3902136 | LINDEN USD-CHARTVILLE SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900756 | LINDEN USD-GLENWOOD SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900757 | LINDEN USD-WATERLOO ELEMENTARY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5410006 | LINDSAY, CITY OF | C | D3 | T3 | TULARE | SW |
| CA5400537 | LINDY'S LANDING | C | D1 | TD | TULARE | GW |
| CA4200633 | LINGATE LANE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5400631 | LINNELL FARM LABOR CENTER | C | D1 | There are no treatment plants | TULARE | GW |
| CA1000486 | LION RAISINS PACKING COMPANY | NTNC | D1 | TD | FRESNO | GW |
| CA4390004 | LION'S GATE RESERVE | NP | There are no treatment plants | SANTA CLARA | ||
| CA5200584 | LITTLE AVENUE WATER SYSTEM | C | D1 | TD | TEHAMA | GW |
| CA1900158 | LITTLE BALDY WATER | C | D1 | T1 | LOS ANGELES | GW |
| CA3200024 | LITTLE BEAR RV PARK | NC | D1 | TD | PLUMAS | GW |
| CA2710016 | LITTLE BEAR WATER COMPANY | C | D2 | TD | MONTEREY | GW |
| CA2300705 | LITTLE LAKE MOBILE HOME PARK | C | D1 | T1 | MENDOCINO | GW |
| CA3910022 | LITTLE POTATO SLOUGH MUTUAL | C | D1 | T3 | SAN JOAQUIN | SW |
| CA2300617 | LITTLE RIVER INN | NTNC | D1 | T2 | MENDOCINO | GW |
| CA1800516 | LITTLE VALLEY CSD | C | D1 | There are no treatment plants | LASSEN | GW |
| CA1910064 | LITTLEROCK CREEK IRRIGATION DIST. | C | D2 | TD | LOS ANGELES | GW |
| CA5200535 | LIVE OAK ACRES MWC INC. | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA4200960 | LIVE OAK CAMPGROUND | NC | D1 | T2 | SANTA BARBARA | GU |
| CA5103335 | LIVE OAK CHILD CARE CENTER | NTNC | D1 | T2 | SUTTER | GW |
| CA4300829 | LIVE OAK CREEK MUTUAL WATER COMPANY | C | There are no treatment plants | SANTA CLARA | GW | |
| CA3700922 | LIVE OAK SPRINGS WATER SYSTEM | C | D1 | TD | SAN DIEGO | GW |
| CA3100072 | LIVE OAK WALDORF SCHOOL | NTNC | D1 | T1 | PLACER | GW |
| CA1907024 | LIVING SPRINGS CHURCH | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4500085 | LIVING SPRINGS RV & CABINS RESORT | NC | NR | There are no treatment plants | SHASTA | GW |
| CA2400249 | LIVINGSTON PROPERTIES | NC | NR | There are no treatment plants | MERCED | GW |
| CA1502164 | LLANAS CAMP FOUR WATER SYSTEM | C | D1 | TD | KERN | GW |
| CA1900849 | LLANO DEL RIO WATER COMPANY | C | D1 | T1 | LOS ANGELES | GW |
| CA1900303 | LLANO MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GWP |
| CA2800012 | LMR MAIN STREET PARTNERS LLC | NTNC | D1 | TD | NAPA | SWP |
| CA3200704 | LNF ALMANOR CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1800589 | LNF-BOGARD WORK CENTER/CAL TRANS SRRA | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1800601 | LNF-EAGLE LAKE CAMPGROUNDS | NC | NR | There are no treatment plants | LASSEN | GW |
| CA1800569 | LNF-EAGLE LAKE RANGER STATION | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA4200957 | LO-FI WINERY | NC | D1 | T2 | SANTA BARBARA | GW |
| CA4000708 | LOADING CHUTE | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA4900575 | LOCH HAVEN MUTUAL WATER COMPANY | C | D1 | T1 | SONOMA | GW |
| CA3600760 | LOCH LEVEN CHRISTIAN CAMP & CONFERENCE C | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1700518 | LOCH LOMOND MUTUAL WATER CO | C | D1 | T1 | LAKE | GW |
| CA4400912 | LOCH LOMOND REC AREA SANTA CRUZ WD | NC | NR | T1 | SANTA CRUZ | SWP |
| CA3400138 | LOCKE WATER WORKS CO [SWS] | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3910008 | LOCKEFORD COMMUNITY SERV. DIST. | C | D2 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3990008 | LOCKEFORD CSD - RECLAIMED WATER SYSTEM | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA3901439 | LOCKEFORD HOLDINGS WATER DISTRICT LLC | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900682 | LOCKEFORD MOBILE HOME PARK WTR SYS | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901371 | LOCKEFORD SPRINGS GOLF COURSE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1910238 | LOCKHEED MARTIN SKUNK WORKS | NTNC | D1 | TD | LOS ANGELES | GW |
| CA4400801 | LOCKHEED MARTIN SPACE SYSTEMS | NTNC | D2 | T2 | SANTA CRUZ | SW |
| CA1700617 | LODGE AT BLUE LAKES | NC | D1 | TD | LAKE | GW |
| CA3105446 | LODGEPOLE CAMPGROUND | NC | NR | There are no treatment plants | PLACER | GW |
| CA3901041 | LODI AIRPORT CAFE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900837 | LODI HOMES | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900561 | LODI LAKE MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901085 | LODI USD-DAVIS SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900850 | LODI USD-HOUSTON SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900849 | LODI USD-LIVE OAK SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901032 | LODI USD-TURNER ACADEMY | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA3900848 | LODI USD-TURNER ACADEMY AT TOKAY COLONY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901179 | LODI WINE & BUSINESS CENTER | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3910004 | LODI, CITY OF | C | D4 | T4 | SAN JOAQUIN | SW |
| CA5000136 | LOG CABIN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA2800032 | LOKOYA WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA1210023 | LOLETA C.S.D. | C | D2 | T1 | HUMBOLDT | GW |
| CA3600152 | LOMA LINDA UNIVERSITY | C | D2 | T2 | SAN BERNARDINO | GW |
| CA3610013 | LOMA LINDA, CITY OF | C | D4 | T3 | SAN BERNARDINO | GW |
| CA4100512 | LOMA MAR MUTUAL | C | D1 | T3 | SAN MATEO | SW |
| CA4300721 | LOMA PRIETA JUSD-LOMA PRIETA SCHOOL | NTNC | D1 | Operator is not required | SANTA CLARA | GW |
| CA5800876 | LOMA RICA MARKET | NC | NR | There are no treatment plants | YUBA | GW |
| CA5800803 | LOMA RICA WATER COMPANY | C | D1 | T1 | YUBA | GW |
| CA2702551 | LOMA VISTA INN WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2701918 | LOMAS DEL SOL MWS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4901094 | LOMBARDI'S DELI & BBQ | NC | NR | TD | SONOMA | GW |
| CA1910073 | LOMITA-CITY, WATER DEPT. | C | D3 | There are no treatment plants | LOS ANGELES | SWP |
| CA4210006 | LOMPOC-CITY WATER UTILITY DIV | C | D3 | T3 | SANTA BARBARA | SW |
| CA5410017 | LONDON COMMUNITY SERV DIST | C | D2 | Operator is not required | TULARE | GW |
| CA1400185 | LONE PINE CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA5000049 | LONE PINE MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4900653 | LONE PINE MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1000576 | LONE STAR DEHYDRATOR | NTNC | D1 | TD | FRESNO | GW |
| CA1000190 | LONE STAR SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA4500062 | LONE TREE MOBILE HOME PARK | C | D1 | TD | SHASTA | GW |
| CA3600393 | LONE WOLF COLONY | NC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5500237 | LONG BARN LODGE INC. | NC | NR | T1 | TUOLUMNE | GW |
| CA5500057 | LONG BARN PROPERTY OWNERS | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA1910065 | LONG BEACH UTILITIES DEPARTMENT | C | D5 | T5 | LOS ANGELES | SWP |
| CA1990002 | LONG BEACH, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA1500578 | LONG CANYON WATER COMPANY CORP. | C | D1 | TD | KERN | GW |
| CA1800576 | LONG VALLEY CHARTER SCHOOL | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA4000707 | LONGBRANCH SALOON, THE | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2400122 | LONGVIEW MENNONITE SCHOOL | NTNC | D1 | T2 | MERCED | GW |
| CA3301396 | LOOKOUT ROADHOUSE | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3103247 | LOOMIS COMMUNITY PARK | NC | NR | There are no treatment plants | PLACER | GW |
| CA3106937 | LOOMIS LAND INC SENIOR CARE VILLA WATER | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA0901230 | LOON LAKE CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4010022 | LOPEZ PROJECT | C | D3 | T4 | SAN LUIS OBISPO | SW |
| CA4000701 | LOPEZ RECREATION AREA | NC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3000819 | LOS ALAMITOS RACE COURSE | NTNC | D1 | TD | ORANGE | GW |
| CA4210002 | LOS ALAMOS COMMUNITY SERVICES DISTRICT | C | D2 | T1 | SANTA BARBARA | GW |
| CA4400908 | LOS ALTOS ROD AND GUN CLUB | NC | NR | T1 | SANTA CRUZ | GW |
| CA1990022 | LOS ANGELES BUREAU OF SANITATION | NP | Missing treatment classification in SDWIS | LOS ANGELES | ||
| CA1990007 | LOS ANGELES COUNTY DPW | NP | There are no treatment plants | LOS ANGELES | ||
| CA1990005 | LOS ANGELES COUNTY SANITATION DISTRICT | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910075 | LOS ANGELES CWWD 21-KAGEL CANYON | C | D1 | There are no treatment plants | LOS ANGELES | SWP |
| CA1910204 | LOS ANGELES CWWD 29 & 80-MALIBU | C | D4 | T1 | LOS ANGELES | SWP |
| CA1910185 | LOS ANGELES CWWD 36-VAL VERDE | C | D3 | T1 | LOS ANGELES | SWP |
| CA1910248 | LOS ANGELES CWWD 37-ACTON | C | D2 | T2 | LOS ANGELES | SWP |
| CA1910070 | LOS ANGELES CWWD 40 REG 4 & 34 LANCASTER | C | D5 | T2 | LOS ANGELES | SWP |
| CA1910203 | LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM | C | D2 | T2 | LOS ANGELES | SWP |
| CA1910027 | LOS ANGELES CWWD 40, REG. 35-N.E. L.A. | C | D1 | T1 | LOS ANGELES | GW |
| CA1910005 | LOS ANGELES CWWD 40, REG. 38-LAKE LA | C | D4 | TD | LOS ANGELES | SWP |
| CA1910025 | LOS ANGELES CWWD 40, REG. 39-ROCK CREEK | C | D1 | T1 | LOS ANGELES | SWP |
| CA1900062 | LOS ANGELES RESIDENTIAL COMMUNITY FOUNDA | C | D1 | There are no treatment plants | LOS ANGELES | SWP |
| CA1910138 | LOS ANGELES WORLD AIRPORTS | NTNC | D1 | TD | LOS ANGELES | GW |
| CA1910443 | LOS ANGELES, CITY OF - CASTAIC PWR PLANT | NTNC | D1 | T2 | LOS ANGELES | SW |
| CA1900555 | LOS ANGELES, CITY OF - POWER PLANT #1 | C | D1 | T2 | LOS ANGELES | SW |
| CA1900542 | LOS ANGELES, CITY OF - POWER PLANT #2 | C | D1 | T2 | LOS ANGELES | SW |
| CA1910067 | LOS ANGELES-CITY, DEPT. OF WATER & POWER | C | D5 | T5 | LOS ANGELES | SW |
| CA2701570 | LOS CARNEROS MWA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1000490 | LOS GATOS TOMATO PRODUCTS | NTNC | D1 | T2 | FRESNO | SW |
| CA5000562 | LOS INDIOS WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3500578 | LOS MADRONES MWC | C | D1 | TD | SAN BENITO | GW |
| CA5210003 | LOS MOLINOS COMM. SERVICES DIST. | C | D2 | TD | TEHAMA | GW |
| CA4010016 | LOS OSOS COMMUNITY SERVICES DISTRICT | C | D2 | T2 | SAN LUIS OBISPO | GW |
| CA4090010 | LOS OSOS CSD - WWTP | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4200630 | LOS PRIETOS BOY'S CAMP | NTNC | D1 | TD | SANTA BARBARA | GW |
| CA4200918 | LOS PRIETOS COMPLEX | C | D1 | TD | SANTA BARBARA | GW |
| CA4200631 | LOS PRIETOS IMPROVEMENT ASSOCIATION | NC | D1 | TD | SANTA BARBARA | GW |
| CA4300637 | LOS RANCHOS DE UVAS WATER COMPANY | C | D1 | T1 | SANTA CLARA | GW |
| CA3690028 | LOS RANCHOS MOBILE HOME PARK | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3600154 | LOS RIOS RANCHO WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000649 | LOS ROBLES MOBILE HOME ESTATES | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA3700958 | LOS TULES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA0701707 | LOS VAQUEROS INTERPRETIVE CENTER | NC | D1 | T2 | CONTRA COSTA | SW |
| CA0701706 | LOS VAQUEROS MARINA BLDG | NC | D1 | T2 | CONTRA COSTA | SW |
| CA1510046 | LOST HILLS UTILITY DISTRICT | C | D2 | T2 | KERN | GW |
| CA0900411 | LOTUS PUB | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900123 | LOTUS STORE WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3400477 | LOU'S DRIVE-IN NO.2 | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3700011 | LOUIS A. STELZER COUNTY PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3901441 | LOVELACE TRANSFER STATION | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5100118 | LOVEY'S LANDING | NC | NR | There are no treatment plants | SUTTER | GW |
| CA3200185 | LOWER BUCKS LAKE LDS CAMP | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1000013 | LOWER DEER CREEK TRACT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1710010 | LOWER LAKE COUNTY WATER DISTRICT | C | D2 | T2 | LAKE | GW |
| CA1000080 | LOWER LINE CREEK IMPRVMNT ASSN | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2600538 | LOWER ROCK CREEK MUTUAL WATER CO. | C | D1 | There are no treatment plants | MONO | GW |
| CA3901205 | LOWER SAC PLAZA | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5403001 | LOWER SPRINGS WATER CO | NC | D1 | TD | TULARE | GW |
| CA5410007 | LSID - TONYVILLE | C | D1 | T2 | TULARE | SW |
| CA5410036 | LSID-STRATHMORE SYSTEM | C | D1 | There are no treatment plants | TULARE | SWP |
| CA3600432 | LUCERNE VALLEY ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601095 | LUCERNE VALLEY HIGH SCHOOL | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600156 | LUCERNE VALLEY MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600452 | LUCERNE VALLEY PARKS & RECREATION | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600157 | LUCERNE VISTA MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1710005 | LUCERNE WATER CO. - CAL WATER SERVICE | C | D2 | T4 | LAKE | SW |
| CA2701446 | LUCIA WS | NC | NR | T2 | MONTEREY | GU |
| CA0910007 | LUKINS BROTHERS WATER COMPANY | C | D2 | T2 | EL DORADO | GW |
| CA2301009 | LUNA TRATTORIA | NC | NR | TD | MENDOCINO | GW |
| CA0400133 | LUNDBERG FAMILY FARM | NTNC | D1 | TD | BUTTE | GW |
| CA2600534 | LUNDY LAKE RESORT | NC | NR | There are no treatment plants | MONO | GW |
| CA2600532 | LUNDY MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | MONO | GW |
| CA4300716 | LUPIN LODGE | C | D1 | T2 | SANTA CLARA | SW |
| CA2000505 | LUPINE BASS LAKE | NC | NR | There are no treatment plants | MADERA | GW |
| CA3701390 | LUX INN | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4901298 | LYNMAR WINERY | NC | NR | T1 | SONOMA | GW |
| CA1910081 | LYNWOOD PARK MUTUAL WATER CO. | C | D1 | T1 | LOS ANGELES | GW |
| CA1910079 | LYNWOOD-CITY, WATER DEPT. | C | D5 | T2 | LOS ANGELES | SWP |
| CA3600478 | LYTLE CREEK ADMINISTRATION SITE | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3690022 | LYTLE CREEK NORTH RECYCLED WATER | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3600158 | LYTLE SPRINGS WC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4901220 | LYTTON SPRINGS WINERY | NC | NR | T1 | SONOMA | GW |
| CA1503653 | M & L COLD STORAGE WATER SYSTEM | NTNC | D1 | T3 | KERN | GW |
| CA1504005 | M & L OFFICE | NTNC | D1 | T1 | KERN | GW |
| CA1200579 | M.F. MITCHELL & COMPANY | NTNC | NR | T1 | HUMBOLDT | GW |
| CA2300740 | MACCALLUM HOUSE INN | NC | D1 | TD | MENDOCINO | GW |
| CA4901460 | MACDONALD BUNKHOUSE | NC | NR | TD | SONOMA | GW |
| CA4901406 | MACROSTIE WINERY AND VINEYARD | NC | NR | T2 | SONOMA | GW |
| CA0707568 | MACS OLD HOUSE | NC | NR | T1 | CONTRA COSTA | GW |
| CA0500107 | MACT HEALTH BOARD, INC. | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA5305103 | MAD RIVER COMPOUND - USFS | NTNC | D1 | TD | TRINITY | GW |
| CA2090002 | MADERA CMD NO.27-GOLDSIDE ESTATES WWTF | NP | There are no treatment plants | MADERA | ||
| CA2000385 | MADERA CO BASS LAKE GOVT CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA2010004 | MADERA CO CMD19-PARKWOOD | C | D2 | T1 | MADERA | GW |
| CA2000544 | MADERA CO MD1-HIDDEN LAKE ESTATES | C | D1 | T2 | MADERA | SW |
| CA2010008 | MADERA CO MD10A-MADERA RANCHOS | C | D2 | There are no treatment plants | MADERA | GW |
| CA2000542 | MADERA CO SA02-WISHON COVE | NC | D1 | T2 | MADERA | SW |
| CA2010011 | MADERA CO SA1-INDIAN LAKES | C | D2 | T1 | MADERA | GW |
| CA2000729 | MADERA CO SA16 SUMNER HILL | C | D1 | T2 | MADERA | SW |
| CA2010006 | MADERA CO SA3-PARKSDALE | C | D2 | There are no treatment plants | MADERA | GW |
| CA2000695 | MADERA COMMUNITY COLLEGE | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA2000315 | MADERA DISTRICT FAIR | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000965 | MADERA HISPANIC CHURCH | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000352 | MADERA IRRIGATION DISTRICT | NTNC | D1 | T1 | MADERA | GW |
| CA2000595 | MADERA MH & RV PARK | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000780 | MADERA MUNICIPAL GOLF COURSE | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000220 | MADERA RANCHOS ASSEMBLY OF GOD | NC | NR | There are no treatment plants | MADERA | GW |
| CA2010010 | MADERA VALLEY WATER COMPANY | C | D2 | T2 | MADERA | GW |
| CA3301979 | MADISON CENTER WATER SYSTEM | NTNC | D1 | TD | RIVERSIDE | GW |
| CA1000105 | MADISON ELEMENTARY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA5700571 | MADISON SERVICE DIST | C | D1 | TD | YOLO | GW |
| CA4000780 | MADONNA INN WATER COMPANY | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA4901330 | MADRONA MANOR | NTNC | D1 | T1 | SONOMA | GW |
| CA4900513 | MADRONE MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA2000637 | MAEEN K YAHYA | NC | NR | There are no treatment plants | MADERA | GW |
| CA4900637 | MAGIC MOUNTAIN MUTUAL WATER COMPANY | C | D1 | T1 | SONOMA | GW |
| CA3400130 | MAGNOLIA MUTUAL WATER | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA1300553 | MAGNOLIA UNION SCHOOL | NTNC | D1 | T2 | IMPERIAL | SW |
| CA1500378 | MAHER MUTUAL WATER COMPANY | C | D1 | T2 | KERN | GW |
| CA2700638 | MAHER RD WS #05 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2100585 | MAIF - MARSHALL AQUA IMPROVEMENT FORUM | NC | NR | TD | MARIN | GW |
| CA4200974 | MAIN STREET PRODUCE | NTNC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3710041 | MAJESTIC PINES COMMUNITY SD | C | D2 | T2 | SAN DIEGO | GW |
| CA4200718 | MAJESTIC TOWNSGATE WATER SYSTEM | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA1010042 | MALAGA COUNTY WATER DISTRICT | C | D2 | There are no treatment plants | FRESNO | GW |
| CA2910300 | MALAKOFF DIGGINS SHP | NC | D1 | T1 | NEVADA | GW |
| CA1990031 | MALIBU COUNTRY CLUB | NP | There are no treatment plants | LOS ANGELES | ||
| CA1990021 | MALIBU LUMBER (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA0300448 | MALLO GOLD MINE PLAZA | NTNC | D1 | There are no treatment plants | AMADOR | GW |
| CA2690001 | MAMMOTH COMMUNITY WATER DISTRICT | NP | There are no treatment plants | MONO | ||
| CA2610001 | MAMMOTH CWD | C | D3 | T3 | MONO | SW |
| CA2600729 | MAMMOTH LAKES BASIN | NC | NR | There are no treatment plants | MONO | GW |
| CA2600624 | MAMMOTH MOUNTAIN SKI AREA - OUTPOST 14 | NTNC | D1 | There are no treatment plants | MONO | GW |
| CA2000589 | MAMMOTH POOL MOBILE HOME PARK | C | D1 | TD | MADERA | GW |
| CA2600577 | MAMMOTH YOSEMITE AIRPORT | NC | NR | There are no treatment plants | MONO | GW |
| CA2300642 | MANCHESTER BEACH KOA | NC | D1 | TD | MENDOCINO | GW |
| CA2300826 | MANCHESTER UNION ELEMENTARY SCHOOL | NTNC | D1 | TD | MENDOCINO | GW |
| CA1700650 | MANDALA WATER SYSTEM | NC | D1 | TD | LAKE | GW |
| CA1910083 | MANHATTAN BEACH-CITY, WATER DEPT. | C | D4 | T2 | LOS ANGELES | SWP |
| CA1210017 | MANILA COMMUNITY SERVICES DIST. | C | D1 | There are no treatment plants | HUMBOLDT | GWP |
| CA1000324 | MANNING GARDENS CARE CENTER INC | C | D1 | TD | FRESNO | GW |
| CA5403159 | MANNY WATER SYSTEM | NC | NR | There are no treatment plants | TULARE | GW |
| CA1500535 | MANON MANOR MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA3901322 | MANTECA INDUSTRIAL PRK CSA-30 | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3910005 | MANTECA, CITY OF | C | D5 | T3 | SAN JOAQUIN | SWP |
| CA4901282 | MANZANA PRODUCTS COMPANY, INC. | NTNC | D1 | T1 | SONOMA | GW |
| CA3701826 | MANZANITA DINER | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA0400063 | MANZANITA ELEMENTARY SCHOOL | NTNC | D1 | TD | BUTTE | GW |
| CA2700629 | MANZANITA HILLS WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702229 | MANZANITA PARK WS | NC | NR | TD | MONTEREY | GW |
| CA3900661 | MAPACHE TRAILER PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0707625 | MARATHON MARTINEZ WATER SYSTEM | NTNC | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA5500132 | MARBLE QUARRY RESORT | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA4200907 | MARBORG INDUSTRIES | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA4100551 | MARCHI CENTRAL FARM | C | D1 | TD | SAN MATEO | GW |
| CA5100140 | MARCUM ILLINOIS ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA0800649 | MARGARET KEATING MAIN. & OPER. | NTNC | D1 | TD | DEL NORTE | GW |
| CA4300752 | MARIA LANE MUTUAL WATER COMPANY | C | There are no treatment plants | SANTA CLARA | SWP | |
| CA3610030 | MARIANA RANCHOS CWD | C | D2 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5700617 | MARIANI NUT COMPANY - BUCKEYE RD | NTNC | D1 | T1 | YOLO | GW |
| CA5800004 | MARIANI PACKING COMPANY, INC. | NC | D1 | There are no treatment plants | YUBA | GW |
| CA4800595 | MARIANI PACKING COMPANY, INC. | NTNC | D1 | TD | SOLANO | GW |
| CA0707564 | MARIN FOOD SPECIALTIES | NC | D1 | T1 | CONTRA COSTA | GW |
| CA2100527 | MARIN FRENCH CHEESE CO | NTNC | NR | T3 | MARIN | SW |
| CA2190002 | MARIN MUNICIPAL WATER DIST. (RECYCLED) | NP | NA | There are no treatment plants | MARIN | |
| CA2110002 | MARIN MUNICIPAL WATER DISTRICT | C | D5 | T5 | MARIN | SW |
| CA2900549 | MARIN SIERRA BOY SCOUTS OF AMERICA | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2710017 | MARINA COAST WATER DISTRICT | C | D4 | TD | MONTEREY | GW |
| CA2790009 | MARINA COAST WATER DISTRICT-RECLAMATION | NP | There are no treatment plants | MONTEREY | ||
| CA2702453 | MARINA LANDFILL WS | NTNC | D1 | TD | MONTEREY | GW |
| CA0707608 | MARINA MOBILE MANOR | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA3790115 | MARINE CORPS RECRUIT DEPOT | NP | N/A | There are no treatment plants | SAN DIEGO | |
| CA3301706 | MARION MTN/ FERN BASIN - USFS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3900598 | MARIONS RANCH HOUSE MOTEL | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA2210937 | MARIPOSA COUNTY PUBLIC WORKS DEPARTMENT | NTNC | D1 | T1 | MARIPOSA | GW |
| CA2201070 | MARIPOSA DISTRICT FAIRGROUND | NC | D1 | Operator is not required | MARIPOSA | GW |
| CA2210943 | MARIPOSA INDUSTRIAL PARK WATER COMPANY | NC | D1 | TD | MARIPOSA | GW |
| CA2210906 | MARIPOSA PINES MUTUAL | C | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2210001 | MARIPOSA PUBLIC UTILITY DIST | C | D2 | T3 | MARIPOSA | SW |
| CA4900605 | MARK WEST ACRES MWC | C | D1 | There are no treatment plants | SONOMA | GW |
| CA4900905 | MARK WEST MEADOWS MUTUAL WATER | C | D1 | T1 | SONOMA | GW |
| CA2800110 | MARKHAM VINEYARDS | NC | D1 | Operator is not required | NAPA | SWP |
| CA0202504 | MARKLEEVILLE WATER CO. | C | D1 | T2 | ALPINE | SW |
| CA1503374 | MARKO ZANINOVICH, INC. - POND ROAD | NTNC | D1 | TD | KERN | GW |
| CA2000800 | MARQUEZ RENTAL | C | D1 | There are no treatment plants | MADERA | GW |
| CA2100578 | MARSHALL BOAT WORKS | NC | NR | TD | MARIN | GW |
| CA4200968 | MARTIAN RANCH & VINEYARD | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA1900018 | MARTIN MARIETTA SOUTHERN CALIF AGGREGATE | NTNC | D1 | T2 | LOS ANGELES | GW |
| CA5000061 | MARTIN'S MOBILE HOME COURT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4901093 | MARTINELLI RANCH | NC | NR | T1 | SONOMA | GW |
| CA3900751 | MARTINEZ APARTMENTS | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4100515 | MARTINS BEACH WATER SYSTEM | NC | D1 | T2 | SAN MATEO | SW |
| CA2900585 | MARTIS CREEK-US ARMY CORPS OF ENGINEERS | NC | NR | There are no treatment plants | NEVADA | GW |
| CA1000265 | MARY LOU MOBILE HOME PARK | C | D1 | There are no treatment plants | FRESNO | GW |
| CA5301109 | MARY SMITH CAMPGROUND | NC | NR | There are no treatment plants | TRINITY | GW |
| CA3610028 | MARYGOLD MWC | C | D2 | T2 | SAN BERNARDINO | GW |
| CA5800923 | MARYSVILLE FLEA MARKET | NC | NR | There are no treatment plants | YUBA | GW |
| CA5800914 | MARYSVILLE RACEWAY PARK | NC | NR | There are no treatment plants | YUBA | GW |
| CA2701951 | MASSA ESTATE VINEYARDS WS (PREV HELLER) | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3701965 | MATAGUAY SCOUT RESERVATION | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4901248 | MATANZAS CREEK WINERY | NTNC | D1 | TD | SONOMA | GW |
| CA2800081 | MATERRA WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901263 | MATRIX WINERY | NC | NR | T1 | SONOMA | GW |
| CA3400453 | MATSUDA'S BY GREEN ACRES, LLC | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2701931 | MATSUI NURSERY WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1200684 | MATTOLE ELEMENTARY SCHOOL | NTNC | D1 | T1 | HUMBOLDT | GW |
| CA4901284 | MAURITSON FAMILY WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901453 | MAURITSON LABOR HOUSE | NC | NR | T1 | SONOMA | GW |
| CA3900543 | MAURLAND MANOR WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GWP |
| CA3301188 | MAVERIK FUELING STATION | NC | D1 | T1 | RIVERSIDE | GW |
| CA2800297 | MAXVILLE LAKE WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA0610003 | MAXWELL PUBLIC UTILITY DISTRICT | C | D1 | TD | COLUSA | GW |
| CA4990012 | MAYACAMA GOLF CLUB, LLC (RECYCLED WATER) | NP | NA | There are no treatment plants | SONOMA | |
| CA2800621 | MAYACAMAS VINEYARDS | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901454 | MAYACAMAS WAREHOUSE, LLC | NTNC | D1 | T1 | SONOMA | GW |
| CA3301568 | MAYFLOWER PARK | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA5200865 | MAYWOOD FARMS | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5200556 | MAYWOOD MOBILE HOME PARK | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA1910084 | MAYWOOD MUTUAL WATER CO. #1 | C | D2 | T1 | LOS ANGELES | SWP |
| CA1910085 | MAYWOOD MUTUAL WATER CO. #2 | C | D2 | T1 | LOS ANGELES | SWP |
| CA1910086 | MAYWOOD MUTUAL WATER CO. #3 | C | D2 | TD | LOS ANGELES | SWP |
| CA5000041 | MAZE BLVD MOBILEHOME PARK | C | NR | There are no treatment plants | STANISLAUS | GW |
| CA4901082 | MAZZOCCO WINERY | NC | NR | T1 | SONOMA | GW |
| CA3400179 | MC CLELLAN MHP | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3500562 | MCALPINE LAKE & PARK | NTNC | D1 | There are no treatment plants | SAN BENITO | GW |
| CA0707532 | MCAVOY YACHT HARBOR | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA4700571 | MCBRIDE SPRINGS CAMPGROUND | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA1300579 | MCCABE UNION SCHOOL | NTNC | D2 | T2 | IMPERIAL | SW |
| CA2702607 | MCCAHON FLORAL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1000661 | MCCALL AND KINGS CANYON PLAZA | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3301570 | MCCALL PARK - RIV.COUNTY PARKS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4710006 | MCCLOUD C.S.D. | C | D2 | TD | SISKIYOU | GW |
| CA2210905 | MCCLURE BOAT CLUB, INC. | C | D1 | T2 | MARIPOSA | SW |
| CA2701040 | MCCOY RD WS #05 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2100584 | MCEVOY RANCH WATER SYSTEM | NTNC | D1 | T1 | MARIN | SW |
| CA1510013 | MCFARLAND, CITY OF | C | D3 | T2 | KERN | GW |
| CA2600519 | MCGEE CREEK CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA2600571 | MCGEE CREEK LODGE | NC | NR | There are no treatment plants | MONO | GW |
| CA2600572 | MCGEE CREEK MOBILE HOME PARK | NC | NR | There are no treatment plants | MONO | GW |
| CA4500140 | MCGEE'S CORNER SALOON | NC | NR | TD | SHASTA | GW |
| CA3901391 | MCHENRY AVE RECREATION AREA | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000411 | MCHENRY BUSINESS PARK | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1210016 | MCKINLEYVILLE C.S.D. | C | D3 | There are no treatment plants | HUMBOLDT | GWP |
| CA1290016 | MCKINLEYVILLE C.S.D. - RW | NP | There are no treatment plants | HUMBOLDT | ||
| CA3110022 | MCKINNEY WATER DISTRICT | C | D1 | There are no treatment plants | PLACER | GW |
| CA3901414 | MCLAUGHLIN WASTE EQUIPMENT INC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2000940 | MCLEAN WATER SYSTEM | NC | NR | There are no treatment plants | MADERA | GW |
| CA3500510 | MCMAHON ROAD MUTUAL WATER COMPANY | C | D1 | TD | SAN BENITO | GW |
| CA3902215 | MCMANIS FAMILY VINEYARDS INC. | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5400598 | MCNALLY'S FAIRVIEW LODGE | NC | NR | There are no treatment plants | TULARE | GW |
| CA2204101 | MCPR - DARRAH SCHOOL PARK | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2204054 | MCPR- WOODLAND PARK | NTNC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2207094 | MCPR-CATHEY S VALLEY PARK | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2207070 | MCPR-HORNITOS CO. PARK | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2202131 | MCPR-MIDPINES PARK | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2208107 | MCPR-RED CLOUD PARK | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2400079 | MCSWAIN ELEMENTARY SCHOOL | NTNC | D1 | TD | MERCED | GW |
| CA5402046 | MCWANE PLANT AND INDUSTRIAL, LLC | NTNC | D1 | T2 | TULARE | GW |
| CA2000549 | MD 05 MOUNTAIN RANCHES | C | D1 | T1 | MADERA | GW |
| CA2000550 | MD 06 LAKE SHORE PARK | NC | D1 | TD | MADERA | GW |
| CA2000551 | MD 07 MARINA VIEW HEIGHTS | C | D1 | T1 | MADERA | GW |
| CA2000561 | MD 08 NORTH FORK WATER SYSTEM | C | D1 | TD | MADERA | GW |
| CA2000552 | MD 24 TEAFORD MEADOW LAKES | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000553 | MD 28 RIPPERDAN SELF HELP | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000554 | MD 33 FAIRMEAD | C | D1 | TD | MADERA | GW |
| CA2000727 | MD 36 EASTIN ARCOLA | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000728 | MD 37 LA VINA | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000851 | MD 40 SUNSET RIDGE ESTATES | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000737 | MD 42 STILL MEADOW | C | D1 | TD | MADERA | GW |
| CA2000557 | MD 43 MIAMI CREEK KNOLLS | C | D1 | TD | MADERA | GW |
| CA2000293 | MD 46 AHWAHNEE RESORTS | C | D1 | T1 | MADERA | GW |
| CA2000865 | MD 58 SIERRA HIGHLANDS | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000849 | MD 60 DILLON ESTATES | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000757 | MD 63 MEADOW SPRINGS RANCH | C | D1 | T1 | MADERA | GW |
| CA2000690 | MD 73 QUARTZ MOUNTAIN | C | D1 | T1 | MADERA | GW |
| CA2000511 | MD 85 VALETA | C | D1 | There are no treatment plants | MADERA | GW |
| CA2000692 | MD 95 RANCHOS WEST | C | D1 | There are no treatment plants | MADERA | GW |
| CA2500547 | MDF-ADIN RANGER STATION | NTNC | D1 | There are no treatment plants | MODOC | GW |
| CA2500538 | MDF-BLUE LAKE CG | NC | NR | There are no treatment plants | MODOC | GW |
| CA4700870 | MDF-MEDICINE LAKE | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA3200138 | MEADOW EDGE MHP | C | D1 | There are no treatment plants | PLUMAS | GW |
| CA2300506 | MEADOW ESTATES MUTUAL | C | D1 | T1 | MENDOCINO | GW |
| CA1400511 | MEADOW LAKE APARTMENTS | C | D1 | There are no treatment plants | INYO | GW |
| CA1000056 | MEADOW LAKES CLUB | C | D1 | T1 | FRESNO | GW |
| CA3110009 | MEADOW VISTA CWD | C | D2 | T3 | PLACER | SW |
| CA0400026 | MEADOWBROOK OAKS | C | D1 | TD | BUTTE | GW |
| CA2600607 | MEADOWCLIFF LODGE & COLEVILLE/WALKER KOA | NC | NR | There are no treatment plants | MONO | GW |
| CA1400111 | MEADOWCREEK MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA4200612 | MEADOWLARK RANCHES MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA4400665 | MEADOWRIDGE MUTUAL WATER CO | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA1502645 | MEADOWS OF THE KERN MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA1300554 | MEADOWS UNION ELEMENTARY SCHOOL | NTNC | D1 | T3 | IMPERIAL | SW |
| CA3303092 | MECCA ARCO TRAVEL CENTER | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA4300912 | MECCHI WATER COMPANY | C | D1 | TD | SANTA CLARA | GW |
| CA5610005 | MEINERS OAKS CWD | C | D2 | T2 | VENTURA | SWP |
| CA4500003 | MEL MAR MUTUAL WATER CO | C | D1 | There are no treatment plants | SHASTA | GW |
| CA5800205 | MELA'S MEXICAN RESTAURANT | NC | NR | There are no treatment plants | YUBA | GW |
| CA4900551 | MELITA HEIGHTS MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA4300525 | MELODY WOODS WATER COMPANY | C | D1 | T1 | SANTA CLARA | GW |
| CA4200933 | MELVILLE WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2800812 | MENDING WALL WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1700739 | MENDO MILL AND LUMBER COMPANY | NTNC | NR | TD | LAKE | GW |
| CA2300821 | MENDOCINO ART CENTER | NC | D1 | TD | MENDOCINO | GW |
| CA2390001 | MENDOCINO CITY COMMUNITY SERVICES DIST | NP | There are no treatment plants | MENDOCINO | ||
| CA2300515 | MENDOCINO COAST BOTANICAL GARDENS | NC | D1 | TD | MENDOCINO | GW |
| CA2300950 | MENDOCINO COUNTY FAIRGROUNDS | NC | NR | TD | MENDOCINO | GW |
| CA2300524 | MENDOCINO COVE | NC | D1 | T1 | MENDOCINO | GW |
| CA2300760 | MENDOCINO GROVE | NC | NR | TD | MENDOCINO | GW |
| CA2300628 | MENDOCINO HOTEL | NTNC | D1 | TD | MENDOCINO | GW |
| CA2300510 | MENDOCINO INN AND FARM - A | NC | D1 | T1 | MENDOCINO | GW |
| CA2300757 | MENDOCINO INN AND FARM - B | NC | D1 | TD | MENDOCINO | GW |
| CA2300520 | MENDOCINO INN AND FARM - C | NC | D1 | TD | MENDOCINO | GW |
| CA2301013 | MENDOCINO MARKET | NC | TD | T1 | MENDOCINO | GW |
| CA2301010 | MENDOCINO PRESBYTERIAN CHURCH | NTNC | There are no treatment plants | MENDOCINO | GW | |
| CA2300584 | MENDOCINO SCHOOL DISTRICT- MENDOCINO | NTNC | D1 | T1 | MENDOCINO | GW |
| CA2300846 | MENDOCINO SCHOOL DISTRICT-ALBION SCHOOL | NTNC | D1 | TD | MENDOCINO | GW |
| CA2390584 | MENDOCINO UNIFIED SCHOOL DISTRICT - RECY | NP | There are no treatment plants | MENDOCINO | ||
| CA1010021 | MENDOTA, CITY OF | C | D3 | T2 | FRESNO | GW |
| CA0600076 | MENF-FOUTS SPRINGS CG | NC | NR | T2 | COLUSA | GW |
| CA0600056 | MENF-LETTS LAKE CG | NC | NR | There are no treatment plants | COLUSA | GW |
| CA4110017 | MENLO PARK MUNICIPAL WATER | C | D3 | T1 | SAN MATEO | SWP |
| CA2400148 | MERCED ADVENTIST CHURCH WATER SYS. | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA2400230 | MERCED ANIMAL MEDICAL CENTER | NC | NR | There are no treatment plants | MERCED | GW |
| CA2400315 | MERCED FRUIT BARN | NC | NR | There are no treatment plants | MERCED | GW |
| CA2400119 | MERCED GOLF & COUNTRY CLUB | NC | NR | There are no treatment plants | MERCED | GW |
| CA2400219 | MERCED NEW LIFE SCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA2400028 | MERCED RIVER RESORT | NC | NR | There are no treatment plants | MERCED | GW |
| CA1000664 | MERCEY HOT SPRINGS | NC | D1 | TD | FRESNO | GW |
| CA2400208 | MERCEY SPRINGS SHELL | NC | D1 | T2 | MERCED | SW |
| CA5100141 | MERIDIAN ELEMENTARY SCHOOL | NTNC | D1 | T2 | SUTTER | GW |
| CA2701837 | MERIDIAN RD WS #09 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2400064 | MERQUIN ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA4901336 | MERRIAM WINERY | NC | NR | T1 | SONOMA | GW |
| CA2702816 | MERRILL GARDENS IRIS CANYON WS | C | D1 | T1 | MONTEREY | GW |
| CA0400013 | MERRY MOUNTAIN MUTUAL | C | D1 | There are no treatment plants | BUTTE | GW |
| CA3010004 | MESA WATER DISTRICT | C | D5 | T2 | ORANGE | SWP |
| CA2701503 | MESA DEL TORO MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4000650 | MESA DUNES MOBILE HOME ESTATES | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA5000584 | MESA ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4200862 | MESA HILLS MUTUAL WATER COMPANY | C | D1 | T1 | SANTA BARBARA | GW |
| CA3090008 | MESA WATER DISTRICT- RW | NP | N/A | There are no treatment plants | ORANGE | |
| CA1300643 | MESQUITE MINES INC. | NTNC | D1 | T2 | IMPERIAL | GW |
| CA3301937 | MESQUITE MUTUAL WATER CO. | C | D1 | There are no treatment plants | RIVERSIDE | GWP |
| CA4300948 | METCALF MOTORCYCLE COUNTY PARK | NC | D1 | TD | SANTA CLARA | GW |
| CA3400473 | METRO AIR PARK WATER SYSTEM | NTNC | D1 | There are no treatment plants | SACRAMENTO | SWP |
| CA1990015 | METROPOLITAN TRANSPORTATION AGENCY | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910087 | METROPOLITAN WATER DIST. OF SO. CAL. | C | D5 | T5 | LOS ANGELES | SW |
| CA1990026 | METROPOLITAN WATER DISTRICT OF SO. CAL. | NP | There are no treatment plants | LOS ANGELES | ||
| CA1500401 | METTLER COUNTY WATER DISTRICT | C | D1 | TD | KERN | GW |
| CA1900100 | METTLER VALLEY MUTUAL | C | D1 | T1 | LOS ANGELES | GW |
| CA2800530 | MEYERS WATER CO. | C | D1 | There are no treatment plants | NAPA | GW |
| CA3702104 | MHC TT INC. (DBA PIO PICO) | C | D1 | T1 | SAN DIEGO | GW |
| CA5800858 | MI RANCHITO RESTAURANT | NC | NR | There are no treatment plants | YUBA | GW |
| CA5500060 | MI WUK HEIGHTS MWC | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5510006 | MI WUK VILLAGE MUT WTR CO | C | D2 | T3 | TUOLUMNE | SW |
| CA4901170 | MICHAEL ELLIS SCHOOL FOR DOG TRAINERS | NC | NR | T1 | SONOMA | GW |
| CA4901365 | MICHAEL LUCAS WATER SYSTEM | NTNC | D1 | TD | SONOMA | GW |
| CA4901042 | MICHEL-SCHLUMBERGER FINE WINE ESTATE | NC | NR | T1 | SONOMA | GW |
| CA4900552 | MICHELE MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1000515 | MICHELSEN PACKAGING | NC | NR | There are no treatment plants | FRESNO | GW |
| CA4390012 | MICROSOFT SILICON VALLEY RECYCLED WATER | NP | There are no treatment plants | SANTA CLARA | ||
| CA2209035 | MID - BARRETT COVE | NC | D1 | Operator is not required | MARIPOSA | GW |
| CA2209063 | MID - MC CLURE POINT REC AREA | NC | D1 | T2 | MARIPOSA | SW |
| CA2209065 | MID - MC SWAIN REC AREA | NC | D1 | T2 | MARIPOSA | SW |
| CA2208033 | MID -HORSESHOE BEND REC AREA | NC | D1 | TD | MARIPOSA | GW |
| CA5000592 | MID VALLEY AG | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5000600 | MID VALLEY NUT CO | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2208067 | MID-BAGBY RECREATION AREA | NC | D1 | TD | MARIPOSA | GW |
| CA4110001 | MID-PENINSULA WATER DISTRICT | C | D3 | There are no treatment plants | SAN MATEO | SWP |
| CA3200066 | MIDDLE FORK MOBILE HOME PARK | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA5601110 | MIDDLE ROAD MUTUAL WATER CO | C | D1 | There are no treatment plants | VENTURA | GWP |
| CA4900813 | MIDGLEY'S COUNTRY FLEA MARKET | NC | NR | T1 | SONOMA | GW |
| CA4200618 | MIDLAND SCHOOL | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3010097 | MIDWAY CITY MUTUAL WC | C | D2 | TD | ORANGE | GW |
| CA4800786 | MIDWAY FOODS | NC | NR | There are no treatment plants | SOLANO | GW |
| CA3110041 | MIDWAY HEIGHTS C. W. D. | C | D2 | There are no treatment plants | PLACER | SWP |
| CA4500082 | MIDWAY MOBILEHOME PARK | C | D1 | TD | SHASTA | GW |
| CA4800755 | MIDWAY RV PARK | NC | NR | There are no treatment plants | SOLANO | GW |
| CA5700702 | MIGRANT HEAD START PROGRAM - WATER | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA1510028 | MIL POTRERO MWC | C | D2 | T2 | KERN | GW |
| CA2801022 | MILAT WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA5402050 | MILK SPECIALTIES GLOBAL | NTNC | D1 | TD | TULARE | GW |
| CA1200547 | MILL CREEK M.W.C. | C | D1 | T1 | HUMBOLDT | GW |
| CA3600166 | MILL CREEK MSC | C | D1 | There are no treatment plants | SAN BERNARDINO | GUP |
| CA4900916 | MILL CREEK VINEYARDS | NC | NR | There are no treatment plants | SONOMA | GW |
| CA5200586 | MILL CREEK/LASSEN MUTUAL WATER | NC | D1 | TD | TEHAMA | GW |
| CA1900699 | MILLARD CANYON IMPROVEMENT ASSOCIATION | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1503686 | MILLENNIUM PACIFIC GREENHOUSES | NTNC | D1 | TD | KERN | GW |
| CA2000548 | MILLER'S LANDING RESORT | NC | NR | There are no treatment plants | MADERA | GW |
| CA0900210 | MILLERS HILL SCHOOL | NTNC | NR | T3 | EL DORADO | GW |
| CA2010300 | MILLERTON SRA MEADOW TANK HILL | NC | NR | T2 | MADERA | SW |
| CA1400047 | MILLPOND RECREATION AREA | NC | NR | There are no treatment plants | INYO | GW |
| CA2310006 | MILLVIEW COUNTY WATER DISTRICT | C | D3 | T3 | MENDOCINO | SW |
| CA4500180 | MILLVILLE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SHASTA | GW |
| CA2801080 | MILTON ROAD WATER COMPANY | C | D1 | There are no treatment plants | NAPA | GW |
| CA2090008 | MINARETS HIGH SCHOOL | NP | There are no treatment plants | MADERA | ||
| CA2000947 | MINARETS HIGH SCHOOL | NTNC | D1 | T1 | MADERA | GW |
| CA2803907 | MINER FAMILY WINERY | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA5700522 | MINER'S LEAP WINERY | NC | NR | There are no treatment plants | YOLO | GW |
| CA5200503 | MINERAL COUNTY WATER DISTRICT | C | D1 | T2 | TEHAMA | SW |
| CA5200585 | MINERAL HOMEOWNER'S ASSN | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0500019 | MINERAL MOUNTAIN MUTUAL WATER | C | D1 | There are no treatment plants | CALAVERAS | GW |
| CA2400250 | MINTURN HULLER | NC | NR | There are no treatment plants | MERCED | GW |
| CA2400223 | MINTURN NUT CO., INC. | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA1900929 | MIRA LOMA HIGH DESERT HOSPITAL | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA5200560 | MIRA MONTE WATER CO. | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA2800066 | MIRA WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1200707 | MIRANDA C.S.D. | C | D1 | TD | HUMBOLDT | GW |
| CA1500152 | MIRASOL COMPANY WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA4300741 | MIREVAL IMPROVEMENT ASSOCIATION | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA2701946 | MISIONERO VEGETABLES WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA3303090 | MISSION CREEK PRESERVE | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3500556 | MISSION FARM R.V. PARK | C | D1 | T1 | SAN BENITO | GW |
| CA4900563 | MISSION HIGHLANDS MUTUAL WATER CO. | C | D1 | TD | SONOMA | GW |
| CA4210019 | MISSION HILLS CSD | C | D2 | T1 | SANTA BARBARA | GW |
| CA3510006 | MISSION OAKS MOBILE HOME PARK | C | D1 | TD | SAN BENITO | GW |
| CA2702317 | MISSION SCHOOL WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA4400723 | MISSION SPRINGS CONFERENCE CENTER | C | D2 | T2 | SANTA CRUZ | GW |
| CA3310008 | MISSION SPRINGS WD | C | D4 | TD | RIVERSIDE | GW |
| CA1900785 | MITCHELL'S AVENUE E MOBILE HOME PARK | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1300555 | MITCHELLS CAMP FAMILY ASSOC. | C | D1 | There are no treatment plants | IMPERIAL | GW |
| CA3600141 | MITSUBISHI CEMENT PLANT CUSHENBURY | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5800844 | MJUSD BROWNS VALLEY SCHOOL | NTNC | D1 | T1 | YUBA | GW |
| CA5800840 | MJUSD CORDUA SCHOOL | NTNC | D1 | T2 | YUBA | GW |
| CA5800845 | MJUSD DOBBINS SCHOOL | NTNC | D1 | T2 | YUBA | GW |
| CA5800843 | MJUSD FOOTHILL INTERMEDIATE SCHOOL | NTNC | D1 | T2 | YUBA | GW |
| CA5800847 | MJUSD LOMA RICA SCHOOL | NTNC | D1 | T2 | YUBA | GW |
| CA1000621 | MK PROPERTIES | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3103279 | MKS APPLEGATE | NC | NR | There are no treatment plants | PLACER | GW |
| CA0500088 | MOANING CAVERN | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3702235 | MOBILAND CAMPER PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4900720 | MOBILE HOME ESTATES | C | D1 | There are no treatment plants | SONOMA | GW |
| CA3901081 | MOBILE VILLAS TRAILER PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5200545 | MODERN VILLAGE MWC | C | D1 | TD | TEHAMA | GW |
| CA5000538 | MODESTO CHRISTIAN CENTER (WATERSYSTEM) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010038 | MODESTO IRRIGATION DISTRICT | C | D2 | T5 | STANISLAUS | SW |
| CA5000164 | MODESTO RESERVOIR | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5010010 | MODESTO, CITY OF | C | D4 | T2 | STANISLAUS | SWP |
| CA2500513 | MODOC VINEYARD ACADEMY | NTNC | D1 | There are no treatment plants | MODOC | GW |
| CA1510014 | MOJAVE PUD | C | D2 | T2 | KERN | SWP |
| CA3601152 | MOJAVE RIVER FORKS REGIONAL PARK | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601184 | MOJAVE SOLAR PROJECT ALPHA POWER PLANT | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA3601185 | MOJAVE SOLAR PROJECT BETA POWER PLANT | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA3610129 | MOJAVE WATER AGENCY | C | D4 | TD | SAN BERNARDINO | GW |
| CA3901238 | MOKELUMNE BEACH RV PARK | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900719 | MOKELUMNE MOBILE SENIOR PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901341 | MOLINO CORNER WATER SYSTEM | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901113 | MOM S APPLE PIE | NC | NR | T1 | SONOMA | GW |
| CA4090004 | MONARCH GROVE RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA5403140 | MONARCH NUT COMPANY | NTNC | D1 | TD | TULARE | GW |
| CA2800040 | MONDAVI FARM WORKER CENTER | C | D1 | TD | NAPA | GW |
| CA1000308 | MONO HOT SPRINGS RESORT | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2600533 | MONO INN | NC | NR | There are no treatment plants | MONO | GW |
| CA2600555 | MONO LAKE COUNTY PARK | NC | NR | There are no treatment plants | MONO | GW |
| CA5500124 | MONO VISTA RANCH MHP | C | D1 | T1 | TUOLUMNE | GW |
| CA1000192 | MONROE SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA5700797 | MONROE/LEINBERGER CNTR - WATERS | C | D1 | TD | YOLO | GW |
| CA5403032 | MONROVIA NURSERY - NURSERY | NTNC | D1 | TD | TULARE | GW |
| CA5403055 | MONROVIA NURSERY - OFFICE | NTNC | D1 | TD | TULARE | GW |
| CA5403127 | MONROVIA NURSERY - VENICE HILLS | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA1910090 | MONROVIA-CITY, WATER DEPT. | C | D4 | T4 | LOS ANGELES | GW |
| CA5403212 | MONSON WATER SYSTEM | C | D1 | TD | TULARE | GW |
| CA2800740 | MONT ST. JOHN CELLARS | NC | NR | There are no treatment plants | NAPA | GW |
| CA4710007 | MONTAGUE, CITY OF | C | D2 | T3 | SISKIYOU | SW |
| CA4010305 | MONTANA DE ORO STATE PARK | NC | D1 | TD | SAN LUIS OBISPO | SWP |
| CA4110010 | MONTARA WATER AND SANITARY DISTRICT | C | D2 | T3 | SAN MATEO | SW |
| CA4000808 | MONTE SERENO MUTUAL BENEFIT WATER | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4700872 | MONTE SHASTA M.W.C. | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4400754 | MONTE VISTA CHRISTIAN SCHOOL | C | D2 | There are no treatment plants | SANTA CRUZ | GW |
| CA5000603 | MONTE VISTA FARMING | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3610029 | MONTE VISTA WD | C | D5 | T4 | SAN BERNARDINO | SWP |
| CA3690023 | MONTE VISTA WD - RECYCLED WATER | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA1910091 | MONTEBELLO LAND & WATER CO. | C | D2 | T2 | LOS ANGELES | GW |
| CA4200733 | MONTECITO SEA MEADOWS | C | D1 | T1 | SANTA BARBARA | GW |
| CA5400898 | MONTECITO SEQUOIA LODGE | NC | NR | There are no treatment plants | TULARE | GW |
| CA4210007 | MONTECITO WATER DIST | C | D4 | T4 | SANTA BARBARA | SW |
| CA4400755 | MONTEREY BAY ACADEMY | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2702336 | MONTEREY BAY NURSERY WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2701452 | MONTEREY DUNES MWA | C | D1 | TD | MONTEREY | GW |
| CA4300941 | MONTEREY MUSHROOMS | NTNC | D1 | T2 | SANTA CLARA | GW |
| CA2701940 | MONTEREY MUSHROOMS WS | NTNC | D1 | TD | MONTEREY | GW |
| CA2790002 | MONTEREY ONE WATER | NP | Missing treatment classification in SDWIS | MONTEREY | GW | |
| CA2702456 | MONTEREY ONE WATER (FORMERLY MRWPCA) | NTNC | D1 | T1 | MONTEREY | GW |
| CA5000389 | MONTEREY PARK TRACT CSD | C | D1 | TD | STANISLAUS | GWP |
| CA1910092 | MONTEREY PARK-CITY, WATER DEPT. | C | D5 | T4 | LOS ANGELES | GW |
| CA2300874 | MONTESSORI DEL MAR LEARNING CENTER | NTNC | D1 | TD | MENDOCINO | GW |
| CA4500170 | MONTGOMERY CREEK SCHOOL | NTNC | D1 | TD | SHASTA | GW |
| CA5000548 | MONTPELIER ORCHARDS (WATER) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4900871 | MOON VALLEY WATER SYSTEM | C | D1 | TD | SONOMA | GW |
| CA5400951 | MOONEY GROVE PARK | NC | NR | There are no treatment plants | TULARE | GW |
| CA1000671 | MOONLIGHT PACKING CO. LLC - PLANT 8 | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000608 | MOONLIGHT PACKING COMPANY PLANT 7 | NC | NR | T1 | FRESNO | GW |
| CA1200793 | MOONSTONE BEACH TRINIDAD | NC | NR | There are no treatment plants | HUMBOLDT | GW |
| CA1200590 | MOONSTONE HEIGHTS MWA | C | D1 | T1 | HUMBOLDT | GW |
| CA5690002 | MOORPARK SANITATION DISTRICT | NP | There are no treatment plants | VENTURA | ||
| CA4500017 | MOOSE CAMP | NC | D1 | There are no treatment plants | SHASTA | GW |
| CA4800695 | MOOSE LODGE 1967 | NC | NR | T2 | SOLANO | SW |
| CA3600554 | MOOSE LODGE 2096 | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3901478 | MOOSE OUTDOOR SPORTSMAN CLUB | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900512 | MORADA ACRES WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901123 | MORADA CHEVRON FAST N EASY #60* | NC | NR | T1 | SAN JOAQUIN | GW |
| CA3901337 | MORADA ESTATES N PWS #46 | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3900722 | MORADA ESTATES PWS | C | D1 | T2 | SAN JOAQUIN | GW |
| CA3900523 | MORADA MANOR WATER SYSTEM | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901425 | MORADA PRODUCE | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0707585 | MORAGA HEIGHTS MUTUAL WATER | C | D1 | T1 | CONTRA COSTA | GW |
| CA1000630 | MORAVIA WINES | NC | NR | TD | FRESNO | GW |
| CA3900805 | MOREHEAD PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4200634 | MORETON BAY PROFESSIONAL PLAZA | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA4300593 | MORGAN HILL USD-MACHADO SCHOOL | NTNC | D1 | TD | SANTA CLARA | GW |
| CA3107348 | MORGAN OAKS ETERNAL PRESERVE | NC | NR | There are no treatment plants | PLACER | GW |
| CA3100010 | MORNING STAR LAKE RESORT | NC | NR | There are no treatment plants | PLACER | GW |
| CA0500084 | MORNING STAR OUTREACH | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA0605002 | MORNING STAR PKG. CO.-WMS. | NTNC | D1 | TD | COLUSA | GW |
| CA5000054 | MORNINGSIDE MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2700656 | MORO COJO MWA | C | D1 | T1 | MONTEREY | GW |
| CA2701926 | MORO RD WS #09 | C | D1 | T1 | MONTEREY | GW |
| CA3390106 | MORONGO BAND OF MISSION INDIANS | NP | There are no treatment plants | RIVERSIDE | ||
| CA3303071 | MORONGO GOLF COURSE AT TUKWET CNYN | NTNC | D1 | TD | RIVERSIDE | GW |
| CA4010011 | MORRO BAY PW DEPT - WATER DIVISION | C | D3 | T2 | SAN LUIS OBISPO | SWP |
| CA4090016 | MORRO BAY RECYCLED WATER SYSTEM | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4010015 | MORRO ROCK MUTUAL WATER CO | C | D2 | TD | SAN LUIS OBISPO | SWP |
| CA4900533 | MORTON'S WARM SPRINGS / SONOMA SPRINGS | C | D1 | T1 | SONOMA | GW |
| CA4901301 | MOSHIN VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA2300818 | MOSS COVE REST STOP (CALTRANS) | NC | D1 | TD | MENDOCINO | GW |
| CA2701683 | MOSS LANDING MWC | NTNC | D1 | TD | MONTEREY | GW |
| CA3600397 | MOSS MOBILE MANOR | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5500125 | MOTHER LODE MOBILE ESTATES | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA0900116 | MOTHER LODE WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2900274 | MOTHER TRUCKERS WATER SYSTEM | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3010073 | MOULTON NIGUEL WATER DISTRICT | C | D5 | There are no treatment plants | ORANGE | SWP |
| CA3090002 | MOULTON NIGUEL WATER DISTRICT- RW | NP | N/A | There are no treatment plants | ORANGE | |
| CA0710300 | MOUNT DIABLO STATE PARK | NC | NR | Operator is not required | CONTRA COSTA | GW |
| CA4901101 | MOUNT GILEAD BIBLE CONFERENCE | NC | NR | T1 | SONOMA | GU |
| CA1901002 | MOUNT KARE CAMP/KARE YOUTH LEAGUE | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA3702283 | MOUNT LAGUNA IMPROVEMENT ASSN. | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA3700019 | MOUNT LAGUNA WATER SYSTEM | NC | NR | Missing treatment classification in SDWIS | SAN DIEGO | GW |
| CA4400764 | MOUNT MADONNA CENTER | C | D1 | T1 | SANTA CRUZ | GW |
| CA2701935 | MOUNT TORO RANCHOS MWA | C | D1 | T1 | MONTEREY | GW |
| CA1400058 | MOUNT WHITNEY GOLF CLUB | NC | NR | There are no treatment plants | INYO | GW |
| CA5403072 | MOUNTAIN AIRE MUTUAL WATER COMPANY | NC | NR | There are no treatment plants | TULARE | GW |
| CA0900311 | MOUNTAIN CAMP II | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3301145 | MOUNTAIN CENTER CAFE | C | NR | There are no treatment plants | RIVERSIDE | GW |
| CA0900309 | MOUNTAIN CREEK SCHOOL | NTNC | NR | T1 | EL DORADO | GW |
| CA4400756 | MOUNTAIN ELEMENTARY SCHOOL | NTNC | D1 | T1 | SANTA CRUZ | GW |
| CA3700117 | MOUNTAIN EMPIRE HIGH SCHOOL | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA3701884 | MOUNTAIN EMPIRE R.V. PARK AND CAMPGROUND | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4510002 | MOUNTAIN GATE C.S.D. | C | D2 | T2 | SHASTA | SW |
| CA1900581 | MOUNTAIN HIGH EAST SKI AREA | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA0105016 | MOUNTAIN HOUSE BAR | NC | NR | There are no treatment plants | ALAMEDA | GW |
| CA0105009 | MOUNTAIN HOUSE SCHOOL | NTNC | D1 | There are no treatment plants | ALAMEDA | SWP |
| CA1800560 | MOUNTAIN MEADOW RANCH | NC | NR | There are no treatment plants | LASSEN | GW |
| CA4500324 | MOUNTAIN MEADOWS CAMP | NC | NR | TD | SHASTA | GW |
| CA2600620 | MOUNTAIN MEADOWS MWC | C | D1 | There are no treatment plants | MONO | GW |
| CA1510042 | MOUNTAIN MESA WC | C | D2 | T2 | KERN | GW |
| CA1700527 | MOUNTAIN OF ATTENTION WATER | C | D1 | T1 | LAKE | GW |
| CA0500106 | MOUNTAIN RANCH WATER SYSTEM | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA4300740 | MOUNTAIN SPRINGS MUTUAL WATER COMPANY | C | D1 | T1 | SANTA CLARA | SWP |
| CA3600620 | MOUNTAIN STREAMS RV PARK | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4400570 | MOUNTAIN SUMMIT MUTUAL WATER SYSTEM | NC | NR | There are no treatment plants | SANTA CRUZ | SWP |
| CA1502717 | MOUNTAIN VALLEY AIRPORT | NC | NR | There are no treatment plants | KERN | GW |
| CA5200571 | MOUNTAIN VALLEY APTS & RVP | C | D1 | TD | TEHAMA | GW |
| CA2900587 | MOUNTAIN VALLEY CHILD AND FAMILY SERVICE | NTNC | D1 | There are no treatment plants | NEVADA | GW |
| CA1000573 | MOUNTAIN VALLEY COMMUNITY CHURCH | NC | NR | TD | FRESNO | GW |
| CA1800557 | MOUNTAIN VALLEY LATTER-DAY SAINTS CHURCH | NC | NR | T1 | LASSEN | GW |
| CA2600605 | MOUNTAIN VIEW BARBEQUE | NC | NR | There are no treatment plants | MONO | GW |
| CA5000490 | MOUNTAIN VIEW CHATOM RECREATION | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5403152 | MOUNTAIN VIEW COLD STORAGE | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA3601057 | MOUNTAIN VIEW CONTINUATION SCHOOL | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5400604 | MOUNTAIN VIEW DUPLEXES | C | D1 | There are no treatment plants | TULARE | GW |
| CA5000255 | MOUNTAIN VIEW ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5400819 | MOUNTAIN VIEW MHP | C | D1 | There are no treatment plants | TULARE | GW |
| CA4900798 | MOUNTAIN VIEW MOBILE ESTATES, LLC | C | D1 | T1 | SONOMA | GW |
| CA4500339 | MOUNTAIN VIEW PLAZA WATER SYSTEM | NC | NR | There are no treatment plants | SHASTA | GW |
| CA1400099 | MOUNTAIN VIEW TRAILER COURT | C | D1 | There are no treatment plants | INYO | GW |
| CA0400090 | MOUNTAIN VILLAGE HOMEOWNER'S ASSOC | C | D1 | TD | BUTTE | GW |
| CA0300524 | MP ASSOCIATES, INC. | NTNC | D1 | T2 | AMADOR | GW |
| CA3600172 | MP MINE OPERATIONS LLC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA2210901 | MPWD-COULTERVILLE CSA 1 | C | D1 | Operator is not required | MARIPOSA | GW |
| CA1000257 | MT ARARAT MOBILE HOME PARK | C | D1 | There are no treatment plants | FRESNO | GW |
| CA0900319 | MT AUKUM SQUARE | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3610033 | MT BALDY HOMEOWNERS ASSN. | C | D1 | TD | SAN BERNARDINO | GW |
| CA3600776 | MT BALDY SKI LIFT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4500090 | MT LASSEN / SHINGLETOWN RV PARK | NC | NR | There are no treatment plants | SHASTA | GW |
| CA0900643 | MT RALSTON PROPERTIES ASSC INC | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3310301 | MT SAN JACINTO ST PARK (STONE CREEK) | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4300831 | MT. EDEN MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA4300949 | MT. HAMILTON GRANDVIEW RESTAURANT | NC | NR | TD | SANTA CLARA | GW |
| CA4700702 | MT. HEBRON WORK CENTER | NC | NR | TD | SISKIYOU | GW |
| CA4410008 | MT. HERMON ASSOCIATION, INC. | C | D2 | TD | SANTA CRUZ | GW |
| CA1710014 | MT. KONOCTI MUTUAL WATER COMPANY | C | D3 | T3 | LAKE | SW |
| CA4300612 | MT. MADONNA COUNTY PARK | NC | NR | There are no treatment plants | SANTA CLARA | GW |
| CA4000848 | MT. OLIVE ORGANIC FARM | NC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA4300563 | MT. PLEASANT WATER USERS ASSOCIATION | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA4700863 | MT. SHASTA SKI PARK | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA4710008 | MT. SHASTA, CITY OF | C | D2 | There are no treatment plants | SISKIYOU | GW |
| CA0790007 | MT. VIEW SANITARY DISTRICT | NP | There are no treatment plants | CONTRA COSTA | ||
| CA2100508 | MUIR BEACH COMMUNITY | C | D1 | T1 | MARIN | GW |
| CA3705046 | MUIR INDUSTRIES INC. | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5000072 | MULBERRY MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1300556 | MULBERRY UNION SCHOOL | NTNC | D1 | T2 | IMPERIAL | SW |
| CA0390904 | MULE CREEK PRISON RECYCLED WATER | NP | There are no treatment plants | AMADOR | ||
| CA5500064 | MULLER MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | TUOLUMNE | SWP |
| CA2801024 | MUMM OF NAPA VALLEY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA4300929 | MURIEL WRIGHT RESIDENTIAL CENTER | NTNC | D1 | TD | SANTA CLARA | GWP |
| CA2700662 | MURPHY HILL WS #01 | C | D1 | There are no treatment plants | MONTEREY | GWP |
| CA2700663 | MURPHY HILL WS #02 | C | D1 | TD | MONTEREY | GW |
| CA0590901 | MURPHYS SANITARY DISTRICT | NP | There are no treatment plants | CALAVERAS | ||
| CA1503570 | MURRAY FAMILY FARMS AT COPUS ROAD | NC | NR | TD | KERN | GW |
| CA1503565 | MURRAY FAMILY FARMS AT GENERAL BEALE RD | NC | NR | There are no treatment plants | KERN | GW |
| CA3301169 | MURRIETA PALMS MOBILE HOME PARK | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA1000585 | MURRIETA/HERNANDEZ FARMS | C | D1 | There are no treatment plants | FRESNO | GW |
| CA3901429 | MUSCO FAMILY OLIVE CO | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3610031 | MUSCOY MWC NO. 1 | C | D2 | TD | SAN BERNARDINO | GW |
| CA2210909 | MUSD - MARIPOSA JUNIOR HIGH SCHOOL | NTNC | D1 | T2 | MARIPOSA | GW |
| CA2210907 | MUSD - SIERRA FOOTHILL CHARTER SCHOOL | NTNC | D1 | There are no treatment plants | MARIPOSA | SWP |
| CA2210910 | MUSD - WOODLAND ELEMENTARY SCHOOL | NTNC | D1 | TD | MARIPOSA | GW |
| CA2210908 | MUSD -COULTERVILLE - GREELEY HILL SCHOOL | NTNC | D1 | T1 | MARIPOSA | GW |
| CA3901163 | MUSD-NEW HAVEN SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901169 | MUSD-NILE GARDEN SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2701876 | MUSHROOM FARMS WS | NTNC | D1 | TD | MONTEREY | GW |
| CA1000305 | MUSICK CREEK INN | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000058 | MUSICK CREEK TRACT ASSOCIATION | NC | D1 | There are no treatment plants | FRESNO | GW |
| CA1000059 | MUSICK HEIGHTS MUTUAL | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000060 | MUSICK MEADOWS #1 | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1000061 | MUSICK MEADOWS #2 | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1500555 | MUSTANG MUTUAL WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA4000775 | MUSTANG SPRINGS MUTUAL WATER | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4000623 | MUTUAL WATER ASSOCIATION | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA3301226 | MWD - EAGLE MOUNTAIN | C | D1 | T2 | RIVERSIDE | SW |
| CA3600383 | MWD OF SO CAL GENE PLANT | C | D1 | T2 | SAN BERNARDINO | SW |
| CA3600382 | MWD OF SO CAL IRON MOUNTAIN | C | D1 | T2 | SAN BERNARDINO | SW |
| CA4901475 | MYCOPIA LLC | NTNC | D1 | T1 | SONOMA | GW |
| CA1200538 | MYERS FLAT M.W.S. INC. | C | D1 | TD | HUMBOLDT | GW |
| CA3310051 | MYOMA DUNES MUTUAL WATER COMPANY | C | D2 | Operator is not required | RIVERSIDE | GW |
| CA4400906 | MYSTERY SPOT SNACK SHACK | NC | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA4010027 | NACIMIENTO WATER COMPANY | C | D2 | T3 | SAN LUIS OBISPO | SW |
| CA4010080 | NACIMIENTO WATER PROJECT | C | D2 | There are no treatment plants | SAN LUIS OBISPO | SW |
| CA4901017 | NACO WEST - RUSSIAN RIVER PRESERVE | NC | NR | TD | SONOMA | GW |
| CA1310700 | NAF EL CENTRO | C | D2 | T3 | IMPERIAL | SWP |
| CA2400140 | NAGAME JAPANESE RESTAURANT | NC | NR | There are no treatment plants | MERCED | GW |
| CA2900112 | NAGGIAR VINEYARDS | NC | NR | There are no treatment plants | NEVADA | GW |
| CA4901476 | NALLE WINERY | NC | D1 | T1 | SONOMA | GW |
| CA2800840 | NAPA COUNTY SCHOOLS: POPE VALLEY | NTNC | D1 | T2 | NAPA | SW |
| CA2800531 | NAPA RIVER RANCH | C | D1 | T1 | NAPA | GW |
| CA2890001 | NAPA SANITATION DISTRICT | NP | There are no treatment plants | NAPA | ||
| CA2800588 | NAPA VALLEY COUNTRY CLUB | NTNC | D1 | TD | NAPA | GW |
| CA2800592 | NAPA VALLEY MARINA | NC | NR | Operator is not required | NAPA | GW |
| CA2800036 | NAPA VALLEY RESERVE WATER SYSTEM | NC | NR | There are no treatment plants | NAPA | GW |
| CA2810003 | NAPA, CITY OF | C | D4 | T5 | NAPA | SW |
| CA4200721 | NAPLES | C | D1 | T2 | SANTA BARBARA | SW |
| CA1700670 | NARROWS FAMILY RESORT | NC | D1 | TD | LAKE | GW |
| CA3710750 | NAS NORTH ISLAND & NAB CORONADO | C | D3 | TD | SAN DIEGO | SWP |
| CA4300997 | NASA AMES RESEARCH CENTER | C | D2 | There are no treatment plants | SANTA CLARA | SWP |
| CA5100117 | NATIONAL AMERICAN CORP. LP-LAKE MINDEN | NC | D1 | There are no treatment plants | SUTTER | GW |
| CA1502595 | NATIONAL CEMENT CO.-LEBEC PLANT | NTNC | D1 | T1 | KERN | GW |
| CA2701922 | NATIVIDAD RD WS #02 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3400463 | NATOMAS GOLF CENTER | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3600180 | NAVAJO MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1590011 | NAVAL AIR WEAPONS STATION - RECLAMATION | NP | There are no treatment plants | KERN | ||
| CA5610700 | NAVAL BASE VENTURA COUNTY, POINT MUGU | C | D3 | There are no treatment plants | VENTURA | SWP |
| CA5610701 | NAVAL BASE VENTURA COUNTY, PORT HUENEME | C | D3 | There are no treatment plants | VENTURA | SWP |
| CA3710710 | NAVAL MEDICAL CENTER SAN DIEGO | C | T1 | SAN DIEGO | SWP | |
| CA5602110 | NAVALAIR MOBILE HOME PARK | C | D1 | T1 | VENTURA | GW |
| CA3901116 | NAVARRA WATER SYSTEM | NC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2300905 | NAVARRO VINEYARDS | NC | NR | T1 | MENDOCINO | GW |
| CA1000193 | NAVELENCIA SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA2900601 | NCSOS, MCCOURTNEY RD. | NTNC | D1 | T1 | NEVADA | GW |
| CA3702757 | ND DANIEL'S INVESTMENT LLC | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3601004 | NEEDLES KOA | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3610032 | NEEDLES, CITY OF | C | D2 | T2 | SAN BERNARDINO | GW |
| CA4500349 | NEIGHBORHOOD CHURCH ANDERSON COTTONWOOD | NC | NR | There are no treatment plants | SHASTA | GW |
| CA2400318 | NEIGHBORHOOD GROCERY | NC | NR | There are no treatment plants | MERCED | GW |
| CA4800801 | NEIL'S SERVICE CENTER | NTNC | D1 | T1 | SOLANO | GW |
| CA4810023 | NEIL'S SERVICE CENTER II | NC | NR | TD | SOLANO | GW |
| CA2900618 | NELSON INDUSTRIAL PARK | NTNC | D1 | T1 | NEVADA | GW |
| CA5700802 | NELSON'S GROVE | NC | NR | T1 | YOLO | GW |
| CA2701280 | NEPENTHE WS | C | D1 | T2 | MONTEREY | SW |
| CA4301011 | NESTLDOWN RANCH | NC | NR | T1 | SANTA CLARA | GW |
| CA1600609 | NETTO AG INC. | NTNC | D1 | There are no treatment plants | KINGS | GW |
| CA4500320 | NEU LODGE MOTEL | NC | NR | There are no treatment plants | SHASTA | GW |
| CA2910004 | NEVADA ID - E. GEORGE, BANNER MOUNTAIN | C | D4 | T5 | NEVADA | SW |
| CA2910014 | NEVADA ID - LAKE OF PINES | C | D2 | T3 | NEVADA | SW |
| CA2910023 | NEVADA ID - LAKE WILDWOOD | C | D3 | T3 | NEVADA | SW |
| CA2910006 | NEVADA ID - LOMA RICA | C | D4 | T4 | NEVADA | SW |
| CA3110026 | NEVADA ID - NORTH AUBURN | C | D2 | T3 | PLACER | SW |
| CA5810005 | NEVADA ID - SMARTSVILLE | C | D1 | T3 | YUBA | SW |
| CA3901242 | NEW 99 SPEEDWAY WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4600037 | NEW AGE CHURCH OF BEING-SIERRA HOT SPR. | NC | D1 | TD | SIERRA | GW |
| CA1000063 | NEW AUBERRY WATER ASSOCIATION | C | D1 | TD | FRESNO | GW |
| CA4300771 | NEW AVENUE MUTUAL WATER COMPANY | C | D1 | T1 | SANTA CLARA | GW |
| CA2702268 | NEW CAMALDOLI HERMITAGE WS | C | D1 | TD | MONTEREY | GW |
| CA5000480 | NEW HOPE CHURCH OF THE NAZARENE | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1000529 | NEW HOPE COMMUNITY CHURCH | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3900664 | NEW HOPE LANDING GENERAL STORE | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000259 | NEW HORIZONS MOBILE/RV PARK | C | D1 | There are no treatment plants | FRESNO | GW |
| CA3900993 | NEW JERUSALEM SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503666 | NEW LEGEND LOGISTICS | NTNC | D1 | TD | KERN | GW |
| CA2210930 | NEW LIFE CHRISTIAN FELLOWSHIP | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA0706030 | NEW LIFE MARINA | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA5200546 | NEW MEADOWS | C | D1 | TD | TEHAMA | GW |
| CA0500032 | NEW MELONES LAKE MARINA | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA2900570 | NEW SOLUTIONS CONSTRUCTION WATER SYSTEM | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3601101 | NEWBERRY CHEVRON | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601151 | NEWBERRY COMMUNITY SERVICES | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600790 | NEWBERRY ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601100 | NEWBERRY MINI MART AND TRUCK STOP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600406 | NEWBERRY MOUNTAIN RV & MOTEL | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601188 | NEWBERRY SPRINGS GAS STATION & MINI-MART | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601052 | NEWBERRY SPRINGS SENIOR CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4300964 | NEWBY ISLAND LANDFILL, REPUBLIC SERVICES | NTNC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA2500801 | NEWELL COUNTY WATER DISTRICT | C | D1 | TD | MODOC | GW |
| CA1995009 | NEWHALL RANCH COMPANY | NP | There are no treatment plants | LOS ANGELES | ||
| CA2100553 | NICASIO RANCH LLC | NC | NR | T2 | MARIN | GW |
| CA2100582 | NICASIO SCHOOL | NTNC | D1 | T2 | MARIN | GU |
| CA2100579 | NICASIO VALLEY RANCH MUTUAL | C | D1 | T2 | MARIN | GW |
| CA1710008 | NICE MUTUAL WATER COMPANY | C | D2 | T4 | LAKE | SW |
| CA1600602 | NICHOLS FARMS | NTNC | D1 | T1 | KINGS | GW |
| CA4901274 | NICHOLSON RANCH WINERY | NC | NR | T1 | SONOMA | GW |
| CA2100531 | NICK'S COVE | NC | NR | T1 | MARIN | GW |
| CA2800027 | NICKEL & NICKEL WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA3705076 | NICKEL BEER WATER COMPANY | NC | D1 | TD | SAN DIEGO | GW |
| CA2900599 | NID SCOTTS FLAT LAKE RESERVOIR | NC | NR | TD | NEVADA | GW |
| CA2800972 | NINE SUNS WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4000818 | NINER WINE ESTATES, LLC | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA5000346 | NINO'S PLACE WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA4010026 | NIPOMO COMM SERVICES DIST | C | D3 | TD | SAN LUIS OBISPO | SWP |
| CA3600183 | NIPTON WATER AND POWER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5603116 | NISHI QUALITY FLOWERS, INC. | NTNC | D1 | TD | VENTURA | GW |
| CA5000189 | NMIP FIRE & WATER SYSTEM, LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4900785 | NOEL HEIGHTS-CAL WATER SERVICE (PUC) | C | D1 | T3 | SONOMA | GU |
| CA4200824 | NOJOQUI FALLS COUNTY PARK | NC | D1 | TD | SANTA BARBARA | GW |
| CA4000734 | NOLL PROPERTIES | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5800893 | NORCAL ADVENTURE AREA | NC | NR | There are no treatment plants | YUBA | GW |
| CA2300516 | NORCAL GASOLINE | NC | D1 | There are no treatment plants | MENDOCINO | GW |
| CA5200657 | NORCAL WATER WORKS | C | D1 | TD | TEHAMA | GW |
| CA3310025 | NORCO, CITY OF | C | D4 | T2 | RIVERSIDE | SWP |
| CA0400073 | NORD COUNTRY SCHOOL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA1502383 | NORD ROAD WATER ASSOCIATION | C | D1 | T1 | KERN | GW |
| CA3901345 | NORMANS NURSERY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0103040 | NORRIS CANYON PROPERTY OWNERS ASSN | C | D1 | There are no treatment plants | ALAMEDA | GW |
| CA4110025 | NORTH COAST COUNTY WATER DIST | C | D4 | There are no treatment plants | SAN MATEO | SWP |
| CA4901197 | NORTH COAST WINE CO. | NC | D1 | T1 | SONOMA | GW |
| CA5700788 | NORTH DAVIS MEADOWS | C | D1 | TD | YOLO | GW |
| CA1510052 | NORTH EDWARDS WD | C | D2 | There are no treatment plants | KERN | SWP |
| CA2000953 | NORTH FORK COMMUNITY DEVELOPMENT COUNCIL | NTNC | NR | There are no treatment plants | MADERA | GW |
| CA2000612 | NORTH FORK ELEMENTARY SCHOOL | NTNC | D1 | T1 | MADERA | GW |
| CA2310007 | NORTH GUALALA WATER COMPANY | C | D3 | T2 | MENDOCINO | SW |
| CA5400506 | NORTH KAWEAH MUTUAL WATER COMPANY | C | D1 | T3 | TULARE | GU |
| CA1502323 | NORTH KERN GOLF COURSE | NC | NR | TD | KERN | GW |
| CA1503669 | NORTH KRANENBURG WS | C | D1 | There are no treatment plants | KERN | GW |
| CA1400072 | NORTH LONE PINE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA2110003 | NORTH MARIN WATER DISTRICT | C | D5 | T4 | MARIN | SW |
| CA2190003 | NORTH MARIN WATER DISTRICT RECYCLED | NP | NA | There are no treatment plants | MARIN | |
| CA2110006 | NORTH MARIN WD - PT. REYES | C | D2 | T1 | MARIN | GW |
| CA1500290 | NORTH MUROC MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | SWP |
| CA5000237 | NORTH OAKS MUTUAL WATER CO | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1590021 | NORTH OF THE RIVER SANITARY DIST. 1 | NP | There are no treatment plants | KERN | ||
| CA3701747 | NORTH PEAK MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA4500102 | NORTH REDDING RV VILLAGE | C | D1 | TD | SHASTA | GW |
| CA3400393 | NORTH RIDGE COUNTRY CLUB | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2902391 | NORTH SAN JUAN COMMUNITY CENTER | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3200109 | NORTH SHORE CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA2702256 | NORTH SHORE ESTATES WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3600184 | NORTH SHORE MWC | C | D1 | T2 | SAN BERNARDINO | GW |
| CA4900797 | NORTH STAR MOBILE HOME PARK | C | D1 | TD | SONOMA | GW |
| CA3110023 | NORTH TAHOE PUD - CARNELIAN WOODS | C | D1 | TD | PLACER | GW |
| CA3110036 | NORTH TAHOE PUD - DOLLAR COVE | C | D1 | There are no treatment plants | PLACER | GWP |
| CA3110001 | NORTH TAHOE PUD - MAIN | C | D2 | T2 | PLACER | SW |
| CA1907014 | NORTH TRAILS MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA3901090 | NORTH VALLEY SCHOOL PWS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5200525 | NORTH VALLEY SERVICES | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA2210913 | NORTH WAWONA ESTATES (B SYSTEM) | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2210912 | NORTH WAWONA PARK MUTUAL (A SYSTEM) | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA5800002 | NORTH YUBA LITTLE LEAGUE | NC | NR | There are no treatment plants | YUBA | GW |
| CA5800899 | NORTH YUBA RANGER STATION | NTNC | D1 | There are no treatment plants | YUBA | GW |
| CA5810006 | NORTH YUBA WATER DISTRICT | C | D2 | T2 | YUBA | SW |
| CA4810019 | NORTHBAY LOGISTICS CENTER FKA SAVEMART | NTNC | D1 | TD | SOLANO | GW |
| CA0800552 | NORTHCREST TRAILER CITY | C | D1 | TD | DEL NORTE | GW |
| CA1790003 | NORTHERN CA POWER AGENCY- SE GEYSERS | NP | There are no treatment plants | LAKE | ||
| CA1700728 | NORTHERN CALIFORNIA VIPASSANA CENTER | NC | NR | There are no treatment plants | LAKE | GW |
| CA3400173 | NORTHGATE 880 [SWS] | NTNC | D4 | There are no treatment plants | SACRAMENTO | GW |
| CA1910097 | NORTHROP GRUMMAN CORP. | NTNC | D2 | TD | LOS ANGELES | GW |
| CA3601168 | NORTHSHORE RV RESORT INC | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000652 | NORTHSHORE S & B, INC | NC | D1 | T1 | SAN LUIS OBISPO | SW |
| CA3107322 | NORTHSTAR AT TAHOE COMSTOCK WATER SYSTEM | NTNC | D1 | There are no treatment plants | PLACER | GW |
| CA3110028 | NORTHSTAR C.S.D. | C | D2 | T2 | PLACER | SW |
| CA3110051 | NORTHSTAR CSD - MARTIS VALLEY | C | D2 | TD | PLACER | GW |
| CA3107311 | NORTHSTAR SUMMIT DECK & GRILL | NC | NR | There are no treatment plants | PLACER | GW |
| CA3901181 | NORTHWEST PIPE COMPANY | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900695 | NORTHWEST PREP CHARTER SCHOOL | NTNC | D1 | TD | SONOMA | GW |
| CA1910191 | NORWALK - CITY, WATER DEPT. | C | D4 | T1 | LOS ANGELES | SWP |
| CA2000930 | NOTT-HILL INVESTMENT CORP (WATER) | NC | NR | There are no treatment plants | MADERA | GW |
| CA2190007 | NOVATO SANITARY DISTRICT | NP | NA | There are no treatment plants | MARIN | |
| CA1410503 | NPS - DEATH VALLEY, COW CREEK/NEVARES | C | D1 | T2 | INYO | GW |
| CA1410509 | NPS - DEATH VALLEY, EMIGRANT RA/CG | NC | NR | TD | INYO | GW |
| CA1410505 | NPS - DEATH VALLEY, FURNACE CREEK | C | D1 | T2 | INYO | GW |
| CA1410504 | NPS - DEATH VALLEY, GRAPEVINE RS | NC | D1 | T2 | INYO | GW |
| CA1410500 | NPS - DEATH VALLEY, MESQUITE SPRINGS | NC | NR | TD | INYO | GW |
| CA1410502 | NPS - DEATH VALLEY, STOVEPIPE WELLS | C | D1 | T2 | INYO | GW |
| CA1410507 | NPS - DEATH VALLEY, WILDROSE CMPGD | NC | NR | TD | INYO | GW |
| CA3600321 | NPS - HOLE IN THE WALL CAMPGROUND | NC | NR | TD | SAN BERNARDINO | GW |
| CA3610301 | NPS - KELSO DEPOT | NC | NR | TD | SAN BERNARDINO | GW |
| CA1410511 | NPS - MANZANAR | NC | NR | TD | INYO | GWP |
| CA3600323 | NPS - ZZYZX DESERT STUDIES CENTER | NC | NR | T1 | SAN BERNARDINO | GW |
| CA2110350 | NPS GGNRA | C | D1 | There are no treatment plants | MARIN | SWP |
| CA2110502 | NPS PRNS - BEACHES | C | NR | TD | MARIN | GW |
| CA2110010 | NPS PRNS - FIVE BROOKS | NC | NR | TD | MARIN | GW |
| CA2110503 | NPS PRNS - GLEN AND WILDCAT CAMPGROUNDS | NC | NR | TD | MARIN | GW |
| CA2110501 | NPS PRNS - LAGUNA SYSTEM | NC | NR | T1 | MARIN | GW |
| CA2110500 | NPS PRNS - LIGHTHOUSE | NC | NR | TD | MARIN | GW |
| CA2110505 | NPS PRNS - SKY CAMP CAMPGROUND | NC | NR | There are no treatment plants | MARIN | SWP |
| CA5410513 | NPS-ASH MOUNTAIN | C | D2 | T2 | TULARE | GU |
| CA5410515 | NPS-ATWELL MILL | NC | D1 | T2 | TULARE | SW |
| CA5410510 | NPS-BUCKEYE FLAT | NC | D1 | TD | TULARE | GW |
| CA5410517 | NPS-COLD SPRINGS | NC | D1 | TD | TULARE | GW |
| CA2010501 | NPS-DEVILS POSTPILE | NC | D1 | T1 | MADERA | GW |
| CA5410519 | NPS-DORST CG | NC | D1 | T2 | TULARE | SW |
| CA1010501 | NPS-GRANT GROVE | C | D1 | T1 | FRESNO | GW |
| CA5410511 | NPS-HOSPITAL ROCK | NC | D1 | TD | TULARE | GW |
| CA5410520 | NPS-PINEWOOD WATER SYSTEM | NC | D1 | TD | TULARE | GW |
| CA5410512 | NPS-POTWISHA | NC | D1 | TD | TULARE | GW |
| CA1010500 | NPS-SHEEP CREEK | NC | D1 | T2 | FRESNO | SW |
| CA5410503 | NPS-WOLVERTON | C | D2 | T2 | TULARE | SW |
| CA5403053 | NS MINI MART | NC | NR | T2 | TULARE | GW |
| CA5100142 | NUESTRO SCHOOL | NTNC | D1 | T1 | SUTTER | GW |
| CA3310026 | NUEVO WATER COMPANY | C | D3 | T2 | RIVERSIDE | SWP |
| CA0900204 | NUGGET CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2800848 | NVUSD: STONEBRIDGE SCHOOL | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA3103291 | NYACK WATER SYSTEM | NTNC | D1 | TD | PLACER | GW |
| CA5602111 | NYELAND ACRES MUTUAL WATER CO | C | D2 | TD | VENTURA | GW |
| CA4300808 | O'CONNOR HOSPITAL | NTNC | D2 | TD | SANTA CLARA | SWP |
| CA4110019 | O'CONNOR TRACT CO-OPERATIVE WATER CO. | C | D2 | There are no treatment plants | SAN MATEO | GW |
| CA1000411 | O'NEILL VINTNERS & DISTILLERS | NTNC | D1 | T1 | FRESNO | GW |
| CA2801936 | O'SHAUGHNESSY WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA3901382 | O-G PACKING CO | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA0900423 | O.A.R.S., INC #70 | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4700593 | OAK BOTTOM CG & WC | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA2000775 | OAK CREEK MOBILE HOME PARK | C | D1 | T1 | MADERA | GW |
| CA4300603 | OAK DELL PARK | C | D1 | T2 | SANTA CLARA | GW |
| CA3600185 | OAK GLEN DOMESTIC WATER | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600133 | OAK GLEN RETREAT | C | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601165 | OAK GLEN STEAK HOUSE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3700035 | OAK GROVE COMPLEX | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1900537 | OAK GROVE MOBILE HOME PARK | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4900703 | OAK GROVE SCHOOL | NTNC | D1 | TD | SONOMA | GW |
| CA4901175 | OAK GROVE SCHOOL DISTRICT OFFICE | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3301528 | OAK HAVEN ASSOCIATION | C | D1 | T1 | RIVERSIDE | GW |
| CA2700665 | OAK HEIGHTS W & R CO INC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA1000579 | OAK KNOLL PROFESSIONAL CTR | NC | D1 | TD | FRESNO | GW |
| CA3700276 | OAK KNOLL VILLAGE | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4700705 | OAK KNOLL WORK CENTER | NC | NR | TD | SISKIYOU | GW |
| CA1500465 | OAK KNOLLS MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA2700509 | OAK MANOR WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700999 | OAK PARK WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3901197 | OAK RIDGE WINERY, LLC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4500190 | OAK RUN ELEMENTARY SCHOOL | NTNC | D1 | T1 | SHASTA | GW |
| CA4200881 | OAK TRAIL ESTATES | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4200802 | OAK TRAIL RANCH | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3600032 | OAK TREE MOUNTAIN | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4700638 | OAK VALLEY ACRES P.O.A. | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA5400713 | OAK VALLEY SCHOOL | NTNC | D1 | T2 | TULARE | GW |
| CA1000497 | OAK VIEW TERRACE | NC | D1 | There are no treatment plants | FRESNO | GW |
| CA3900846 | OAK VIEW UNION ELEMENTARY SCH | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000503 | OAKDALE CHEESE & SPECIALTIES | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000091 | OAKDALE GOLF & COUNTRY CLUB (EH) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010014 | OAKDALE, CITY OF | C | D3 | There are no treatment plants | STANISLAUS | GW |
| CA0500105 | OAKENDELL, INC. | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA2000821 | OAKHURST CHRISTIAN CONF CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA2000593 | OAKHURST MOBILE HOME ESTATES | C | D1 | T1 | MADERA | GW |
| CA3200019 | OAKLAND FEATHER RIVER CAMP | NC | NR | T1 | PLUMAS | GW |
| CA0900404 | OAKLANE MOBILE VILLAGE, LLC. | C | D2 | There are no treatment plants | EL DORADO | GW |
| CA0706004 | OAKLEY MUTUAL WATER COMPANY | C | D1 | TD | CONTRA COSTA | GW |
| CA4300526 | OAKMONT WATER SYSTEM | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA3901411 | OAKMOORE CONGRE OF JEHOVAH WIT | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3705065 | OAKOASIS OPEN SPACE PRESERVE | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3700962 | OAKVALE PARK | C | D1 | T2 | SAN DIEGO | GW |
| CA2801052 | OAKVILLE GRADE WINERY | NC | NR | Operator is not required | NAPA | GW |
| CA2800556 | OAKVILLE GROCERY CO. | NTNC | NR | TD | NAPA | GW |
| CA3990023 | OAKWOOD LAKE WATER DISTRICT | NP | There are no treatment plants | SAN JOAQUIN | ||
| CA3910023 | OAKWOOD LAKE WATER DISTRICT-SUBDIVISION | C | D2 | T2 | SAN JOAQUIN | GW |
| CA2701000 | OASIS CAFE WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA3301373 | OASIS DATE GARDENS | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA5000263 | OASIS INVESTMENTS | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3900998 | OASIS MARINA-RESORT | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000525 | OASIS MARKET | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3901482 | OASIS MARKET & PRODUCE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3303002 | OASIS PALMS RV RESORT | NC | NR | T1 | RIVERSIDE | GW |
| CA1500585 | OASIS PROPERTY OWNERS ASSOCIATION | C | D1 | TD | KERN | GW |
| CA4901141 | OCCIDENTAL ARTS & ECOLOGY CENTER | NTNC | D1 | TD | SONOMA | GW |
| CA4900536 | OCCIDENTAL COMMUNITY SERVICES DISTRICT | C | D1 | T1 | SONOMA | GW |
| CA4990021 | OCCIDENTAL SANITATION DISTRICT | NP | There are no treatment plants | SONOMA | ||
| CA4901196 | OCEAN COVE LODGE - BAR & GRILL | NC | NR | TD | SONOMA | GW |
| CA1200772 | OCEAN GROVE LODGE | NC | NR | T2 | HUMBOLDT | SW |
| CA2300634 | OCEAN'S EDGE ESTATES | C | D1 | T1 | MENDOCINO | GW |
| CA4010005 | OCEANO COMM SERVICES DIST. | C | D2 | T1 | SAN LUIS OBISPO | SWP |
| CA3710014 | OCEANSIDE, CITY OF | C | D5 | T5 | SAN DIEGO | SWP |
| CA3790014 | OCEANSIDE, CITY OF - RECLAMATION | NP | Missing treatment classification in SDWIS | SAN DIEGO | GW | |
| CA1300683 | OCOTILLO CHEVRON STATION | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA1300513 | OCOTILLO MUTUAL WATER CO | C | D1 | There are no treatment plants | IMPERIAL | GW |
| CA3700291 | OCOTILLO OASIS, LLC | C | D1 | T1 | SAN DIEGO | GW |
| CA1300678 | OCOTILLO RV RESORT | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA3710319 | OCOTILLO WELLS - HOLMES CAMP | NC | NR | TD | SAN DIEGO | GW |
| CA3701882 | OCOTILLO WELLS RV PARK & STORE | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3710301 | OCOTILLO WELLS SVRA - HQ | NC | NR | TD | SAN DIEGO | GW |
| CA4000830 | OCTAGON BARN CENTER ASSOCIATION | NC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4910026 | ODD FELLOWS RECREATION CLUB | C | D1 | TD | SONOMA | GW |
| CA2803697 | ODETTE ESTATE WATER SYSTEM | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901314 | ODIYAN BUDDHIST RETREAT CENTER | C | D1 | T1 | SONOMA | GW |
| CA2300954 | OFFSTREET STUDIOS | NC | NR | TD | MENDOCINO | GW |
| CA3600149 | OG INVESTMENTS, LLC | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5000015 | OID #22 - WILLIAMS TRACT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000013 | OID #45 | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000014 | OID #46 - SUNSET OAKS | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000317 | OID #51 - SUNSET OAKS #10 | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000433 | OID-OAKDALE RURAL WATER SYSTEM #1 | C | D2 | There are no treatment plants | STANISLAUS | GW |
| CA1510015 | OILDALE MWC | C | D3 | TD | KERN | SWP |
| CA5610014 | OJAI WATER SYSTEM | C | D3 | T2 | VENTURA | SWP |
| CA0300043 | OK CORRAL | NC | NR | There are no treatment plants | AMADOR | GW |
| CA5403217 | OKIEVILLE HIGHLAND ACRES MWC | C | D1 | There are no treatment plants | TULARE | GW |
| CA0500108 | OKIZU FOUNDATION | NC | There are no treatment plants | CALAVERAS | GW | |
| CA4100540 | OKU INCORPORATED | C | D1 | T2 | SAN MATEO | GW |
| CA5403200 | OL' BUCKAROO | NC | NR | T2 | TULARE | SW |
| CA1400040 | OLANCHA RV AND MHP | NC | NR | There are no treatment plants | INYO | GW |
| CA0707639 | OLD BORGES RANCH WATER SYS | NC | NR | There are no treatment plants | CONTRA COSTA | GW |
| CA2600526 | OLD BRIDGEPORT RANGER STATION COMPOUND | NC | NR | There are no treatment plants | MONO | GW |
| CA1300655 | OLD EUCALYPTUS SCHOOLHOUSE | NC | NR | T2 | IMPERIAL | SW |
| CA2701232 | OLD NATIVIDAD RD WS #01 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5500020 | OLD OAK RANCH | NC | D1 | T2 | TUOLUMNE | SW |
| CA3901447 | OLD RIVER GOLF COURSE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1500096 | OLD RIVER MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA2702708 | OLD STAGE RD WS #21 | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA5700508 | OLD SUGAR MILL WINERY | NTNC | D1 | T1 | YOLO | GW |
| CA3900799 | OLDE TOWNE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA2400335 | OLIVARES FARMS WATER SYSTEM | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA1105005 | OLIVAREZ HONEY BEES | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA3600187 | OLIVE DELL RANCH | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5000055 | OLIVE LANE MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5810003 | OLIVEHURST PUBLIC U.D. | C | D3 | T2 | YUBA | GW |
| CA3710029 | OLIVENHAIN MWD | C | D5 | T5 | SAN DIEGO | SWP |
| CA3790029 | OLIVENHAIN MWD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3100114 | OLIVERS GROCERY | NC | NR | There are no treatment plants | PLACER | GW |
| CA4900699 | OLIVET ELEMENTARY SCHOOL | NTNC | D1 | TD | SONOMA | GW |
| CA3301863 | OLIVET UNIVERSITY | C | D1 | T1 | RIVERSIDE | GW |
| CA0900307 | OLSON TRACT WATER ASSOCIATION | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3410022 | OLYMPIA MOBILODGE | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2904010 | OLYMPIA PARK WATER SYSTEM | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3110020 | OLYMPIC VALLEY PSD | C | D2 | T1 | PLACER | GW |
| CA3901368 | OM SCOTT & SONS/HYPONEX CORP | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3601064 | OMYA CALIFORNIA, A DIVISION OF OMYA INC | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3400459 | ON THE Y | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2800068 | ONE HOPE WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA5000457 | ONE STOP WS | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2700156 | ONITSUKA BROTHERS WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3610034 | ONTARIO MUNICIPAL UTILITIES COMPANY | C | D5 | T3 | SAN BERNARDINO | SWP |
| CA2702830 | OP MURPHY & SONS WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1500216 | OPAL FRY AND SON | NTNC | D1 | TD | KERN | GW |
| CA1000643 | OPEN SKY RANCH | NTNC | NR | TD | FRESNO | GW |
| CA3100083 | OPHIR ELEMENTARY SCHOOL WATER SYSTEM | NTNC | D1 | TD | PLACER | GW |
| CA4100552 | OPTIMISTS VOLUNTEERS FOR YOUTH | NC | NR | There are no treatment plants | SAN MATEO | GW |
| CA2801026 | OPUS ONE WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA5000298 | ORANGE BLOSSOM RECREATION AREA | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3090001 | ORANGE COUNTY WATER DISTRICT | NP | N/A | Missing treatment classification in SDWIS | ORANGE | GW |
| CA3790114 | ORANGE GROVE ENERGY LP | NP | There are no treatment plants | SAN DIEGO | ||
| CA1502680 | ORANGE GROVE RV PARK | NC | NR | T2 | KERN | GW |
| CA3410016 | ORANGE VALE WATER COMPANY | C | D3 | There are no treatment plants | SACRAMENTO | SWP |
| CA1910101 | ORCHARD DALE WATER DISTRICT | C | D3 | T2 | LOS ANGELES | GWP |
| CA2700669 | ORCHARD LN WS #02 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702165 | ORCHARD LN WS #09 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5800868 | OREGON HOUSE GROCERY | NC | NR | There are no treatment plants | YUBA | GW |
| CA1200701 | ORICK C.S.D. | C | D1 | TD | HUMBOLDT | GW |
| CA1100444 | ORLAND ESTATES MOBILE H.P. | C | D1 | There are no treatment plants | GLENN | GW |
| CA1100103 | ORLAND LDS CHURCH | NC | D1 | TD | GLENN | GW |
| CA1100443 | ORLAND LIVESTOCK COMM. YARD, INC. | NC | NR | There are no treatment plants | GLENN | GW |
| CA1100445 | ORLAND MOBILE H.P. | C | D1 | There are no treatment plants | GLENN | GW |
| CA1100436 | ORLAND OAKS MHP | C | D1 | There are no treatment plants | GLENN | GW |
| CA1200729 | ORLEANS C.S.D. | C | D1 | T2 | HUMBOLDT | SW |
| CA1200566 | ORLEANS MUTUAL WATER COMPANY | C | D1 | T2 | HUMBOLDT | SW |
| CA5410008 | OROSI PUBLIC UTILITY DISTRICT | C | D2 | TD | TULARE | GW |
| CA0400019 | OROVILLE MOBILE HOME PARK | C | D1 | TD | BUTTE | GW |
| CA2300509 | ORR SPRINGS RESORT | NC | D1 | TD | MENDOCINO | GW |
| CA4901068 | ORSI FAMILY VINEYARDS | NC | D1 | T1 | SONOMA | GW |
| CA3301482 | ORTEGA OAKS RV PARK&CAMPGROUND | C | D1 | T2 | RIVERSIDE | GW |
| CA0707545 | ORWOOD RESORT | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA5103005 | OSWALD WATER SYSTEM | NC | D1 | There are no treatment plants | SUTTER | GW |
| CA3710034 | OTAY WATER DISTRICT | C | D5 | T1 | SAN DIEGO | SWP |
| CA3790034 | OTAY WATER DISTRICT - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA5000402 | OUR LADY OF ASSUMPTION CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3301961 | OUTDOOR RESORTS RANCHO CA | NTNC | D1 | T1 | RIVERSIDE | GW |
| CA2700622 | OUTLOOK WA | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2800010 | OUTPOST WINES | NC | NR | There are no treatment plants | NAPA | GW |
| CA5400972 | OUTSIDE CREEK SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA2210934 | OUTWARD BOUND CALIFORNIA | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA4901206 | OVERSHINE WINE COMPANY | NC | NR | TD | SONOMA | GW |
| CA2800073 | OVID NAPA VALLEY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1502659 | OWENS PEAK SOUTH | C | D1 | There are no treatment plants | KERN | GW |
| CA1502608 | OWENS PEAK WEST | C | D1 | There are no treatment plants | KERN | GW |
| CA1400005 | OWENS VALLEY WATER RESOURCES, INC. | C | D1 | There are no treatment plants | INYO | GW |
| CA3900825 | OWENS-BROCKWAY GLASS CONTAINER INC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3400356 | OWL HARBOR | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5603123 | OXNARD PALLET COMPANY | NTNC | D1 | There are no treatment plants | VENTURA | GW |
| CA5610007 | OXNARD WATER DEPT | C | D4 | T4 | VENTURA | SWP |
| CA2400320 | OXXO MINI MART | NC | NR | There are no treatment plants | MERCED | GW |
| CA3901388 | P G & E-TURNER CUT WATER SYSTEM | NTNC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4500160 | PACHECO ELEMENTARY SCHOOL | NTNC | D1 | TD | SHASTA | GW |
| CA3901086 | PACIFIC BELL UE17L WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900702 | PACIFIC CHRISTIAN ACADEMY | NTNC | D1 | There are no treatment plants | SONOMA | GW |
| CA4200961 | PACIFIC COAST ENERGY COMPANY | NTNC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5700636 | PACIFIC COAST PRODUCERS | NC | D1 | TD | YOLO | GW |
| CA4000226 | PACIFIC DUNES RANCH | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA2790014 | PACIFIC GROVE RW PROJECT | NP | There are no treatment plants | MONTEREY | ||
| CA2300871 | PACIFIC REEFS WATER DISTRICT | NC | D1 | T2 | MENDOCINO | GU |
| CA2700101 | PACIFIC RESERVE NURSERY WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3500563 | PACIFIC SCIENTIFIC ENERGETIC MATS. COMP. | NTNC | D1 | T1 | SAN BENITO | GW |
| CA2810012 | PACIFIC UNION COLLEGE | C | D2 | T1 | NAPA | GW |
| CA1000194 | PACIFIC UNION ELEMENTARY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA2400341 | PACIFIC UNION PACKING | NC | NR | TD | MERCED | GW |
| CA0202505 | PACIFIC VALLEY CAMPGROUND | NC | NR | There are no treatment plants | ALPINE | GW |
| CA2702254 | PACIFIC VALLEY SCHOOL WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA5200655 | PACIFIC WOODTECH | NTNC | D1 | T1 | TEHAMA | GW |
| CA4600082 | PACKER LAKE LODGE | NC | NR | There are no treatment plants | SIERRA | GW |
| CA5400850 | PACKWOOD SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA4901342 | PADMASAMBHAVA PEACE INSTITUTE | NC | NR | There are no treatment plants | SONOMA | GW |
| CA3710037 | PADRE DAM MWD | C | D5 | There are no treatment plants | SAN DIEGO | SWP |
| CA3790037 | PADRE DAM MWD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3000585 | PAGE AVENUE MUTUAL WATER COMPANY | C | D1 | TD | ORANGE | GW |
| CA3500925 | PAICINES RANCH | NTNC | D1 | TD | SAN BENITO | GW |
| CA3500920 | PAICINES WATER SYSTEM | NC | NR | There are no treatment plants | SAN BENITO | GW |
| CA4200578 | PAINTED CAVE | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2700875 | PAJARO VALLEY GREENHOUSE WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA0409196 | PALERMO BIBLE FAMILY CHURCH | NC | NR | There are no treatment plants | BUTTE | GW |
| CA3600597 | PALI OVERNIGHT ADVENTURES | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA1400522 | PALISADE GLACIER HIGH SCHOOL | NTNC | D1 | TD | INYO | GW |
| CA3103294 | PALISADES TAHOE 8200 WATER SYSTEM | NTNC | D1 | T1 | PLACER | GW |
| CA3107321 | PALISADES WATER SYSTEM | NC | NR | There are no treatment plants | PLACER | GW |
| CA3303064 | PALM GAS MART | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA1910103 | PALM RANCH IRRIGATION DIST. | C | D2 | T2 | LOS ANGELES | SWP |
| CA3301494 | PALM SPRINGS AERIAL TRAMWAY | NTNC | D1 | There are no treatment plants | RIVERSIDE | SWP |
| CA3310081 | PALM SPRINGS CREST | C | D1 | TD | RIVERSIDE | GW |
| CA1910102 | PALMDALE WATER DIST. | C | D5 | T5 | LOS ANGELES | SW |
| CA1995015 | PALMDALE WATER DISTRICT (RECYCLED WATER) | NP | There are no treatment plants | LOS ANGELES | ||
| CA1206004 | PALMER CREEK CSD | C | D1 | T1 | HUMBOLDT | GW |
| CA3600540 | PALMS | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600372 | PALMS RIVER RESORT | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4390006 | PALO ALTO MOUNTAIN VIEW RECYCLED WTR PRJ | NP | There are no treatment plants | SANTA CLARA | ||
| CA4110020 | PALO ALTO PARK MUTUAL WATER COMPANY | C | D2 | T1 | SAN MATEO | GW |
| CA1300616 | PALO VERDE COUNTY WATER DIST. | C | D1 | T3 | IMPERIAL | GW |
| CA5400519 | PALO VERDE UNION ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA3701982 | PALOMAR CHRISTIAN CONFERENCE CENTER | C | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3700933 | PALOMAR MOUNTAIN MUTUAL WATER CO. | C | D1 | TD | SAN DIEGO | GW |
| CA3710316 | PALOMAR MTN. SP - DOANE VALLEY | NC | NR | TD | SAN DIEGO | GW |
| CA3710317 | PALOMAR MTN. SP - SILVERCREST | NC | NR | TD | SAN DIEGO | GW |
| CA3702236 | PALOMAR OBSERVATORY | C | D1 | TD | SAN DIEGO | GW |
| CA1206002 | PALOMINO ESTATES WATER COMPANY | C | D1 | T2 | HUMBOLDT | SW |
| CA4900570 | PALOMINO LAKES MUTUAL WATER CO. | C | D1 | T1 | SONOMA | GW |
| CA5403120 | PANADERIA LA CABANA | NC | NR | There are no treatment plants | TULARE | GW |
| CA1502465 | PANAMA ROAD PROPERTY OWNERS ASSOC | C | D1 | There are no treatment plants | KERN | GW |
| CA1400044 | PANAMINT SPRINGS RESORT | NC | NR | T2 | INYO | SW |
| CA3200177 | PANCAKE BAY MUTUAL WATER CO | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1000345 | PANOCHE WATER DISTRICT | C | D1 | T2 | FRESNO | SW |
| CA5400509 | PANORAMA HEIGHTS PROP OWNERS | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400724 | PANORAMA PARK FIRE PRO CO | NC | NR | There are no treatment plants | TULARE | GW |
| CA3400416 | PAPE MACHINERY | NTNC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1009039 | PAPPAS & CO (MENDOTA) | C | D1 | T2 | FRESNO | SW |
| CA3901172 | PAR COUNTRY ESTATES CSA-16 | C | D1 | T2 | SAN JOAQUIN | GW |
| CA0409190 | PARADISE ADVENTIST CHURCH | NC | NR | There are no treatment plants | BUTTE | GW |
| CA4200543 | PARADISE CANYON IMPROVEMENT ASSOCIATION | NC | D1 | TD | SANTA BARBARA | GW |
| CA1990027 | PARADISE COVE LAND COMPANY, LLC | NP | There are no treatment plants | LOS ANGELES | ||
| CA1502213 | PARADISE COVE LODGE | NC | NR | There are no treatment plants | KERN | GW |
| CA0410007 | PARADISE IRRIGATION DISTRICT | C | D3 | T5 | BUTTE | SW |
| CA2700674 | PARADISE LAKE MUTUAL WATER CO. | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3600399 | PARADISE MOBILE ESTATES | C | D1 | TD | SAN BERNARDINO | GW |
| CA3900768 | PARADISE POINT MARINA | NC | NR | T3 | SAN JOAQUIN | GW |
| CA1910099 | PARADISE RANCH MHP | C | D1 | T1 | LOS ANGELES | GW |
| CA2700678 | PARADISE RD WS #05 | C | D1 | TD | MONTEREY | GW |
| CA2700682 | PARADISE RD WS #09 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2701633 | PARADISE RD WS #21 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4901191 | PARADISE RIDGE WINERY | NC | NR | T1 | SONOMA | GW |
| CA5000274 | PARADISE SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA2600574 | PARADISE SHORES RV PARK | NC | NR | There are no treatment plants | MONO | GW |
| CA2000943 | PARADISE SPRINGS | NC | NR | There are no treatment plants | MADERA | GW |
| CA3303077 | PARADISE VALLEY CAFE | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA3301502 | PARADISE VALLEY MWC | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA1503194 | PARADISE WATER SYSTEM | NTNC | D1 | Operator is not required | KERN | GW |
| CA4000604 | PARAGON TRIANGLE WATER SUPPLY | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA2701001 | PARAISO HOT SPRINGS WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA1910105 | PARAMOUNT - CITY, WATER DEPT. | C | D4 | T2 | LOS ANGELES | SWP |
| CA1400009 | PARCHER'S RESORT | NC | NR | There are no treatment plants | INYO | GW |
| CA0500053 | PARDEE CENTER | NTNC | D1 | T2 | CALAVERAS | SW |
| CA0301038 | PARDEE RECREATION AREA | NTNC | D1 | T2 | AMADOR | SW |
| CA3400377 | PARK DELTA BAY | NC | NR | T2 | SACRAMENTO | GW |
| CA3901466 | PARK GREEN HOUSES WATER SYSTEM | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000017 | PARK HEIGHTS MUTUAL WATER CO | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5400887 | PARK INVESTMENTS WATER SYSTEM | NTNC | D1 | TD | TULARE | GW |
| CA3600193 | PARK MOABI | NTNC | D1 | T2 | SAN BERNARDINO | GW |
| CA4900553 | PARK ROYAL MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA1400110 | PARK WEST MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA2701002 | PARKFIELD CAFE AND INN WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA4300924 | PARKWAY LAKES RV PARK | C | D1 | TD | SANTA CLARA | GW |
| CA2400338 | PARREIRA ALMOND PROCESSING COMPANY, LLC | NC | NR | T1 | MERCED | GW |
| CA4000832 | PARRISH FAMILY WINERY | NC | D1 | TD | SAN LUIS OBISPO | GW |
| CA3601037 | PARRISH RANCH | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000778 | PARSONS WATER SUPPLY | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA2701263 | PARTINGTON MWC | C | D1 | T2 | MONTEREY | SW |
| CA1910124 | PASADENA WATER AND POWER | C | D5 | T4 | LOS ANGELES | SWP |
| CA1990010 | PASADENA, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA4490004 | PASATIEMPO GOLF COURSE | NP | There are no treatment plants | SANTA CRUZ | ||
| CA5200534 | PASKENTA COMM. SERVICES DIST. | C | D1 | TD | TEHAMA | SW |
| CA4000781 | PASO 360 | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4000692 | PASO ROBLES CHEVROLET CADILLAC | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA4000790 | PASO ROBLES RV RANCH | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA5102016 | PASQUINI'S (MICHELI) WS | NC | D1 | There are no treatment plants | SUTTER | GW |
| CA4901038 | PASSALACQUA WINERY | NC | NR | TD | SONOMA | GW |
| CA3901469 | PASTOR ST BERNARD CHRCH WTR SYS | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5402038 | PATTERSON TRACT CSD | C | D1 | TD | TULARE | GW |
| CA5010017 | PATTERSON, CITY OF | C | D4 | TD | STANISLAUS | GW |
| CA2301004 | PATTERSONS PUB | NC | NR | TD | MENDOCINO | GW |
| CA0300112 | PAUL J. WINES | NC | NR | There are no treatment plants | AMADOR | GW |
| CA3700934 | PAUMA VALLEY WATER COMPANY | C | D2 | TD | SAN DIEGO | GW |
| CA5700798 | PAVESTONE | NTNC | D1 | There are no treatment plants | YOLO | GW |
| CA2800112 | PCSH, LLC | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA3110035 | PCWA - WEIMAR | C | D2 | T3 | PLACER | SW |
| CA5500013 | PEACH GROWERS TRACT IMPROV ASSOC | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA1503683 | PEAK TO PEAK MOUNTAIN CHARTER SCHOOL WS | NTNC | D1 | There are no treatment plants | KERN | GWP |
| CA4200972 | PEAKE RANCH | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA1400043 | PEARSONVILLE WATER SYSTEM | NC | NR | There are no treatment plants | INYO | GW |
| CA2790005 | PEBBLE BEACH COMMUNITY SERVICES DISTRICT | NP | There are no treatment plants | MONTEREY | ||
| CA2701364 | PEDRAZZI MWC | C | D1 | TD | MONTEREY | GW |
| CA4800818 | PEDRICK PRODUCE | NC | NR | T2 | SOLANO | GW |
| CA4900981 | PEDRONCELLI WINERY | NC | NR | TD | SONOMA | GW |
| CA3600513 | PEGGY SUE'S DINER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2801027 | PEJU PROVINCE | NTNC | D1 | Operator is not required | NAPA | SW |
| CA2400340 | PELLIGRINI PROPERTIES (EL CAMPO MARKET) | NC | NR | There are no treatment plants | MERCED | GW |
| CA4500071 | PELORIA DIGGER BAY LLC | NC | NR | TD | SHASTA | GW |
| CA5403205 | PENA'S DISPOSAL SERVICES | NTNC | D1 | T1 | TULARE | GW |
| CA4200978 | PENCE VINEYARDS | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA2900623 | PENINSULA CAMPGROUND WATER SYSTEM | NC | NR | TD | NEVADA | GW |
| CA0901246 | PENINSULA RECREATION AREA | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2990001 | PENN VALLEY | NP | There are no treatment plants | NEVADA | ||
| CA2902392 | PENN VALLEY SHELL | NC | NR | There are no treatment plants | NEVADA | GW |
| CA2900532 | PENN VALLEY SHOPPING CENTER | NTNC | D1 | TD | NEVADA | GW |
| CA4910003 | PENNGROVE WATER COMPANY (PUC) | C | D2 | There are no treatment plants | SONOMA | GWP |
| CA2300958 | PENNYROYAL FARM | NC | NR | T1 | MENDOCINO | GW |
| CA5000536 | PENTECOST PROPERTIES WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA2700558 | PENTECOSTAL WS | NTNC | D1 | T2 | MONTEREY | GW |
| CA5402056 | PEOPLE'S FOOD AND DELI INC. | NC | NR | There are no treatment plants | TULARE | GW |
| CA5500116 | PEPPERMINT CREEK MHP | C | D1 | T2 | TUOLUMNE | SW |
| CA4901329 | PEPPERWOOD ENVIRONMENTAL CENTER | NC | NR | TD | SONOMA | GW |
| CA5500194 | PEPPERY BAR AND GRILL, THE | NC | NR | There are no treatment plants | TUOLUMNE | GW |
| CA3400147 | PERRY'S BOAT HARBOR | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2700687 | PESANTE RD WS #02 | C | D1 | TD | MONTEREY | GW |
| CA2700691 | PESANTE RD WS #06 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4100513 | PESCADERO HIGH SCHOOL | NTNC | D1 | T1 | SAN MATEO | GW |
| CA2803886 | PESTONI FAMILY ESTATE WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901079 | PETALUMA LIVESTOCK AUCTION YARD | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4910006 | PETALUMA, CITY OF | C | D4 | T1 | SONOMA | GW |
| CA4990003 | PETALUMA, CITY OF (RECYCLED WATER) | NP | NA | There are no treatment plants | SONOMA | |
| CA1900046 | PETER PITCHESS HONOR RANCHO DETN. CTR | C | D2 | TD | LOS ANGELES | GW |
| CA5403081 | PETERS FRUIT FARMS, INC | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA2900595 | PETERSONS CORNER WATER SYSTEM | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3901301 | PETES PLACE LLC | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1400147 | PETITE PANTRY | NC | NR | There are no treatment plants | INYO | GW |
| CA4901299 | PETRIFIED FOREST | NC | NR | TD | SONOMA | GW |
| CA3601121 | PETROLINK HWY 138 INC | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4200971 | PETROS WINERY | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA2702964 | PEZZINI FARMS WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5403054 | PFFJ, LLC | NTNC | D1 | T2 | TULARE | GW |
| CA3600192 | PG & E PIPELINE OPERATION | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA5800919 | PG&E | NTNC | D2 | T2 | YUBA | GW |
| CA4000589 | PG&E | NTNC | D1 | T2 | SAN LUIS OBISPO | SW |
| CA4500061 | PG&E - CASSEL CAMPGROUND | NC | NR | TD | SHASTA | GW |
| CA4500083 | PG&E - MCCUMBER CAMPGROUND | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500086 | PG&E - NORTHSHORE CAMPGROUND | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500243 | PG&E - PSEA CAMP BRITTON | NC | NR | TD | SHASTA | GW |
| CA4500245 | PG&E - PSEA CAMP PIT | NC | NR | TD | SHASTA | GW |
| CA4500244 | PG&E - PSEA CAMP SHASTA | NC | NR | TD | SHASTA | GW |
| CA0409187 | PG&E - TABLE MOUNTAIN | NTNC | D1 | TD | BUTTE | GW |
| CA2000670 | PG&E AG WISHON POWERHOUSE | NC | NR | There are no treatment plants | MADERA | GW |
| CA1000548 | PG&E AUBERRY SERVICE CENTER | NTNC | D1 | TD | FRESNO | GW |
| CA1009129 | PG&E BALCH CAMP | NC | NR | T2 | FRESNO | SW |
| CA3200016 | PG&E COOL SPRINGS CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA2000955 | PG&E GREGG SUBSTATION AND GC YARD | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3200061 | PG&E HASKINS VALLEY CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1009256 | PG&E HELMS HQ/POWERHOUSE | NC | NR | T2 | FRESNO | GW |
| CA1000472 | PG&E HELMS SUPPORT FACILITY | C | D1 | T2 | FRESNO | GW |
| CA3200015 | PG&E LAST CHANCE CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA0202554 | PG&E LOWER BLUE LAKES C.G. | NC | NR | There are no treatment plants | ALPINE | GW |
| CA4300971 | PG&E METCALF | NTNC | D1 | TD | SANTA CLARA | GW |
| CA0202552 | PG&E MIDDLE BLUE LAKES C.G. | NC | NR | There are no treatment plants | ALPINE | GW |
| CA2000733 | PG&E OAKHURST SERVICE CENTER | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA3200017 | PG&E PONDEROSA FLAT CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200084 | PG&E ROCKY POINT CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200166 | PG&E RODGERS FLAT SERVICE CENTER | NTNC | D1 | There are no treatment plants | PLUMAS | GW |
| CA3200718 | PG&E SANDY POINT DAY USE AREA | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200069 | PG&E SUNDEW / HUTCHINS CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA1000393 | PG&E TRAPPER SPRINGS CAMPGRND | NC | NR | There are no treatment plants | FRESNO | GW |
| CA0202557 | PG&E UPPER BLUE DAM SITE EXPANSION CG | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202556 | PG&E UPPER BLUE LAKES C.G. | NC | T1 | T1 | ALPINE | GW |
| CA0400103 | PG&E: PHILBROOK DAM | NC | NR | There are no treatment plants | BUTTE | GW |
| CA3610120 | PHELAN PINON HILLS CSD | C | D4 | TD | SAN BERNARDINO | GW |
| CA2800609 | PHELPS VINEYARDS | NTNC | D1 | T1 | NAPA | GW |
| CA2702373 | PHENEGER CREEK WS | NTNC | D1 | T2 | MONTEREY | GU |
| CA3901176 | PHILLIPS FARMS | NTNC | D1 | T1 | SAN JOAQUIN | GW |
| CA1200541 | PHILLIPSVILLE C.S.D. | C | D1 | T2 | HUMBOLDT | GW |
| CA5510026 | PHOENIX LAKE ESTATES CC MWC | C | D2 | There are no treatment plants | TUOLUMNE | GW |
| CA2800048 | PIAZZA WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1310300 | PICACHO STATE RESERVATION AREA | NC | NR | TD | IMPERIAL | GW |
| CA1910042 | PICO RIVERA - CITY, WATER DEPT. | C | D3 | T2 | LOS ANGELES | GW |
| CA1910125 | PICO WD | C | D3 | TD | LOS ANGELES | GW |
| CA1700630 | PIER 1900 HOMEOWNER'S ASSOCIATION | C | D1 | T1 | LAKE | GW |
| CA5400732 | PIERPOINT SPRINGS WATER CO. | C | D1 | There are no treatment plants | TULARE | GW |
| CA4100553 | PIGEON POINT HOSTEL | NC | D1 | There are no treatment plants | SAN MATEO | GW |
| CA2000526 | PIKE RANCH MUTUAL WATER CO | C | D1 | T1 | MADERA | GW |
| CA1300559 | PILOT KNOB RV RESORT | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA4600008 | PILOT LAKE CAMP | NC | NR | There are no treatment plants | SIERRA | GW |
| CA5700552 | PILOT TRAVEL CENTER #168 - WATER | NTNC | D1 | T1 | YOLO | GW |
| CA1700628 | PINE ACRES BLUE LAKE RESORT | NC | D1 | TD | LAKE | GW |
| CA5301008 | PINE COVE RV PARK | C | D1 | TD | TRINITY | GW |
| CA3310030 | PINE COVE WATER DISTRICT | C | D2 | T1 | RIVERSIDE | GW |
| CA1400006 | PINE CREEK VILLAGE | C | D1 | There are no treatment plants | INYO | GW |
| CA2600509 | PINE GLADE ASSOCIATION | NC | NR | There are no treatment plants | MONO | GW |
| CA2600610 | PINE GROVE CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA0310005 | PINE GROVE COMM SERV DIST | C | D1 | There are no treatment plants | AMADOR | SWP |
| CA4500290 | PINE GROVE MOBILEHOME PARK | C | D1 | TD | SHASTA | GW |
| CA0800800 | PINE GROVE TRAILER PARK | C | D1 | TD | DEL NORTE | GW |
| CA3710055 | PINE HILL EGG RANCH | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA4900674 | PINE HILL TERRACE MOBILE HOME PARK | C | D1 | TD | SONOMA | GW |
| CA3700905 | PINE HILLS MUTUAL WATER COMPANY | C | D1 | T2 | SAN DIEGO | GW |
| CA2300591 | PINE MOUNTAIN MUTUAL WATER CO. | C | D1 | T2 | MENDOCINO | SW |
| CA4500089 | PINE RIDGE PARK ESTATES | C | D1 | TD | SHASTA | GW |
| CA1000111 | PINE RIDGE SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA3601112 | PINE RIDGE TREATMENT CENTER | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2801029 | PINE RIDGE WINERY | NTNC | D1 | T1 | NAPA | GW |
| CA3301510 | PINE SPRINGS RANCH | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2701403 | PINE ST WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4400582 | PINE TREE LANE MUTUAL WATER CO | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA1300560 | PINE UNION SCHOOL | NTNC | D1 | T2 | IMPERIAL | SW |
| CA3701934 | PINE VALLEY BIBLE CONFERENCE CENTER | C | D1 | TD | SAN DIEGO | GW |
| CA3710049 | PINE VALLEY BORDER PATROL STATION | NTNC | D1 | TD | SAN DIEGO | GW |
| CA3710039 | PINE VALLEY MUTUAL WC | C | D2 | T2 | SAN DIEGO | GW |
| CA3701961 | PINE VALLEY TRAILER PARK | C | D1 | TD | SAN DIEGO | GW |
| CA1500404 | PINEBROOK COMMUNITY WATER WELL | C | D1 | There are no treatment plants | KERN | GW |
| CA3701070 | PINECREST | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5500221 | PINECREST ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5510004 | PINECREST PERMITTEES ASSN | C | D2 | T2 | TUOLUMNE | SW |
| CA1010026 | PINEDALE COUNTY WATER DISTRICT | C | D3 | TD | FRESNO | GW |
| CA1800523 | PINEVIEW MOBILE HOME PARK | C | D1 | TD | LASSEN | GW |
| CA5301105 | PINEWOOD COVE RESORT | NC | NR | TD | TRINITY | GW |
| CA0900535 | PINEWOOD INN | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA3701694 | PINEZANITA INC. | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3510502 | PINNACLES NATIONAL PARK CAMPGROUND | NC | NR | TD | SAN BENITO | GW |
| CA3510501 | PINNACLES NATIONAL PARK-EAST DISTRICT | NC | NR | TD | SAN BENITO | GW |
| CA3510500 | PINNACLES NATIONAL PARK-WEST DISTRICT | NC | NR | T1 | SAN BENITO | GW |
| CA1510054 | PINON PINES MWC | C | D1 | There are no treatment plants | KERN | GW |
| CA1500540 | PINON VALLEY WATER COMPANY | C | D1 | T1 | KERN | GW |
| CA3301511 | PINYON CREST HOA | C | D1 | TD | RIVERSIDE | GW |
| CA3301512 | PINYON PINES COUNTY WATER DIST | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA0900111 | PIONEER ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | EL DORADO | GW |
| CA0900104 | PIONEER BIBLE CHURCH | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1600011 | PIONEER ELEMENTARY SCHOOL | NTNC | D1 | T1 | KINGS | GW |
| CA5000581 | PIONEER EQUINE HOSPITAL WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5700827 | PIONEER HI-BRED INTERNATIONAL | NTNC | D1 | T1 | YOLO | GW |
| CA2000823 | PIONEER MARKET | NC | NR | There are no treatment plants | MADERA | GW |
| CA0900213 | PIONEER PARK WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2701956 | PIONEER PLACE MWS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA0900208 | PIPI CAMPGROUND WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4010008 | PISMO BEACH WATER DEPARTMENT | C | D3 | TD | SAN LUIS OBISPO | SWP |
| CA4090007 | PISMO RANCH RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA1502607 | PIUTE MOUNTAIN SCHOOL WATER | NTNC | D1 | T2 | KERN | GW |
| CA5410009 | PIXLEY PUBLIC UTIL DIST | C | D2 | Operator is not required | TULARE | GW |
| CA5490011 | PIXLEY PUD | NP | There are no treatment plants | TULARE | ||
| CA1800011 | PIZZA FACTORY JANESVILLE | NC | NR | There are no treatment plants | LASSEN | GW |
| CA5800887 | PIZZA ROUND UP | NC | D1 | T1 | YUBA | GW |
| CA3110048 | PLACER CSA - SHERIDAN | C | D1 | TD | PLACER | GW |
| CA3110024 | PLACER CWA - ALTA | C | D1 | T3 | PLACER | SW |
| CA3110050 | PLACER CWA - APPLEGATE | C | D2 | T2 | PLACER | SW |
| CA3110005 | PLACER CWA - AUBURN/BOWMAN | C | D4 | T4 | PLACER | SW |
| CA3110040 | PLACER CWA - BIANCHI ESTATES | C | D1 | There are no treatment plants | PLACER | SWP |
| CA3110006 | PLACER CWA - COLFAX | C | D2 | T3 | PLACER | SW |
| CA3110025 | PLACER CWA - FOOTHILL | C | D5 | T5 | PLACER | SW |
| CA3110124 | PLACER CWA - MONTE VISTA | C | D1 | T3 | PLACER | SW |
| CA0910003 | PLACERVILLE, CITY OF - MAIN | C | D3 | There are no treatment plants | EL DORADO | SWP |
| CA5700643 | PLAINFIELD ELEM SCHOOL - WATER | NTNC | D1 | TD | YOLO | GW |
| CA5700642 | PLAINFIELD STATION | NC | NR | There are no treatment plants | YOLO | GW |
| CA2400065 | PLAINSBURG ELEMENTARY SCHOOL | NTNC | D1 | TD | MERCED | GW |
| CA5410039 | PLAINVIEW MUTUAL WATER COMPANY | C | D1 | Operator is not required | TULARE | GW |
| CA5400682 | PLAINVIEW MWC - CENTRAL WATER | C | D1 | TD | TULARE | GW |
| CA2410007 | PLANADA CSD | C | D2 | TD | MERCED | GW |
| CA2400066 | PLANADA ELEMENTARYSCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA2490009 | PLANADA RW | NP | There are no treatment plants | MERCED | ||
| CA1909648 | PLANT WATER WELL - ROCKVIEW DAIRY | NTNC | D1 | TD | LOS ANGELES | GW |
| CA3400401 | PLANTATION MOBILE HOME PARK | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3301943 | PLANTATION ON THE LAKE PARK | C | D1 | TD | RIVERSIDE | GW |
| CA2702562 | PLASKETT CREEK CAMPGROUNDS WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA0300049 | PLASSE HOMESTEAD WATER ASSOCIATION | NC | NR | There are no treatment plants | AMADOR | GW |
| CA0300080 | PLASSE'S RESORT | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2910011 | PLAVADA COMMUNITY ASSOCIATION | C | D1 | T2 | NEVADA | GW |
| CA4000837 | PLAYA DULCE | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA1100448 | PLAZA ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA4900787 | PLAZA MOBILE HOME PARK | C | D1 | TD | SONOMA | GW |
| CA5100143 | PLEASANT GROVE ELEM. SCHOOL | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA3400250 | PLEASANT GROVE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA0400020 | PLEASANT GROVE MHP | C | D1 | There are no treatment plants | BUTTE | GW |
| CA2900535 | PLEASANT RIDGE SCHOOL | NTNC | D1 | TD | NEVADA | GW |
| CA0400162 | PLEASANT VALLEY BAPTIST CHURCH | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA1400051 | PLEASANT VALLEY CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA4000774 | PLEASANT VALLEY ELEMENTARY | NTNC | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5610008 | PLEASANT VALLEY MUTUAL WATER CO | C | D2 | T1 | VENTURA | SWP |
| CA1090004 | PLEASANT VALLEY STATE PRISON | NP | There are no treatment plants | FRESNO | ||
| CA5400882 | PLEASANT VIEW WEST SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA0707576 | PLEASANTIMES MUTUAL WATER CO | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA2810011 | PLEASURE COVE RESORT | NC | NR | TD | NAPA | GW |
| CA3901278 | PLUG CONNECTION LODI | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA5200506 | PLUM VALLEY ELEM SCHOOL (NEW SCHOOL) | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA3200213 | PLUMAS COUNTY GANSNER PARK | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3210011 | PLUMAS EUREKA CSD | C | D1 | T2 | PLUMAS | GW |
| CA5805001 | PLUMAS LAKE | C | D2 | T2 | YUBA | GW |
| CA5800849 | PLUMAS LAKE GOLF & COUNTRY CLUB | NC | NR | There are no treatment plants | YUBA | GW |
| CA3200126 | PLUMAS PINES RESORT | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3210300 | PLUMAS-EUREKA S.P. | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA4901215 | PLUMFIELD ACADEMY SCHOOL (OCCIDENTAL RD) | NTNC | D1 | T1 | SONOMA | GW |
| CA0310004 | PLYMOUTH, CITY OF | C | D2 | There are no treatment plants | AMADOR | SWP |
| CA4700666 | PNEUMA RETREAT CENTER - STEWART MINERAL | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA3200193 | PNF BECKWOURTH NERVINO FIRE STATION | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200037 | PNF BIG COVE CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200034 | PNF BOULDER / LONE CREEK CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200039 | PNF CHILCOOT CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200038 | PNF COTTONWOOD CG / FRENCHMAN ADMIN | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200036 | PNF FRENCHMAN & SPRING CREEK CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200050 | PNF GANSNER BAR CG / WORK CENTER | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200040 | PNF GRASSHOPPER / GRIZZLY CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200044 | PNF KENZIE RAVINE 1 & 2 | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200212 | PNF LAKES BASIN CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200187 | PNF LIGHTING TREE CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200033 | PNF LONG POINT CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200048 | PNF MT HOUGH RANGER STATION | NTNC | D1 | There are no treatment plants | PLUMAS | GW |
| CA3200046 | PNF NORTH FORK / QUEEN LILY CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200065 | PNF PENINSULA / WYANDOTTE CGS | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3205007 | PNF SPANISH CREEK CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200068 | PNF WHITE HORSE CG | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3901481 | PNP STOCKTON #80 | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901445 | PODESTA PACKING WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1000575 | POINDEXTER NUT COMPANY | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA2300845 | POINT ARENA LIGHTHOUSE | NC | D1 | TD | MENDOCINO | GW |
| CA2310013 | POINT ARENA WATER WORKS | C | D1 | TD | MENDOCINO | GW |
| CA2300668 | POINT CABRILLO HIGHLANDS | C | D1 | TD | MENDOCINO | GW |
| CA1990032 | POINT DUME CLUB | NP | There are no treatment plants | |||
| CA1800632 | POINT HORIZON INSTITUTE | NC | NR | There are no treatment plants | LASSEN | GW |
| CA2300604 | POINT OF VIEW MUTUAL WATER CO | C | D1 | T1 | MENDOCINO | GW |
| CA3400471 | POINT PLEASANT CHURCH | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2600658 | POKONOBE LODGE RESTAURANT/STORE | NC | NR | There are no treatment plants | MONO | GW |
| CA5400969 | POLYMERPAK | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA2300629 | POMO CAMPGROUND | NC | NR | T1 | MENDOCINO | GW |
| CA1910126 | POMONA - CITY, WATER DEPT. | C | D5 | T5 | LOS ANGELES | SW |
| CA2000770 | POMONA RANCH HOUSING CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA1990011 | POMONA, CITY OF | NP | There are no treatment plants | LOS ANGELES | ||
| CA1502620 | POND MUTUAL WATER COMPANY | C | D1 | T1 | KERN | GW |
| CA1502221 | POND SCHOOL WATER SYSTEM | NTNC | D1 | T2 | KERN | GW |
| CA2701553 | POND-DEROSA OAKS WC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2210002 | PONDEROSA BASIN MUTUAL WTR CO | C | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2702563 | PONDEROSA CAMPGROUNDS WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5400934 | PONDEROSA CSD | C | D1 | There are no treatment plants | TULARE | GW |
| CA5500092 | PONDEROSA MOBILE HOME PARK | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA3600596 | PONDEROSA PINES CHRISTIAN CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1000365 | PONDEROSA RV PARK | NC | NR | TD | FRESNO | GW |
| CA2000843 | PONDEROSA TELEPHONE-SERVICE CT | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA1000655 | POONIA FAMILY ENTERPRISES, LLC | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5410026 | POPLAR COMM SERVICE DIST | C | D2 | TD | TULARE | GW |
| CA5490006 | POPLAR CSD | NP | There are no treatment plants | TULARE | ||
| CA5610009 | PORT HUENEME CITY WATER DEPT | C | D3 | There are no treatment plants | VENTURA | SWP |
| CA5610080 | PORT HUENEME WATER AGENCY | C | D3 | T2 | VENTURA | SWP |
| CA4000800 | PORT SAN LUIS HARBOR DISTRICT | NTNC | D1 | There are no treatment plants | SAN LUIS OBISPO | SWP |
| CA4901297 | PORT SONOMA MARINA | NTNC | D1 | There are no treatment plants | SONOMA | GW |
| CA5400541 | PORTERVILLE CITRUS RAYO | NTNC | D1 | T1 | TULARE | GW |
| CA5410801 | PORTERVILLE DEVELOPMENTAL CENTER | C | D2 | T2 | TULARE | GW |
| CA5400504 | PORTERVILLE MOBILE VILLAGE | C | D1 | TD | TULARE | GW |
| CA5410010 | PORTERVILLE, CITY OF | C | D5 | TD | TULARE | GW |
| CA5410048 | PORTERVILLE-JONES CORNER | C | D1 | TD | TULARE | GW |
| CA4100555 | PORTOLA IMPROVEMENT ASSOCIATION MWC | C | D1 | T2 | SAN MATEO | GU |
| CA5400511 | POSO PARK ASSN | NC | NR | There are no treatment plants | TULARE | GW |
| CA2702299 | POST RANCH INN WS | C | D1 | T1 | MONTEREY | GW |
| CA3700930 | POTRERO COUNTY PARK | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3700963 | POTRERO ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SAN DIEGO | GW |
| CA3700049 | POTRERO GENERAL STORE | NC | D1 | TD | SAN DIEGO | GW |
| CA2300755 | POTTER VALLEY SCHOOL DISTRICT | NTNC | D1 | T1 | MENDOCINO | GU |
| CA3710015 | POWAY, CITY OF | C | D5 | T5 | SAN DIEGO | SW |
| CA3790015 | POWAY, CITY OF - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3410303 | PRAIRIE CITY SVRA | NC | D1 | T1 | SACRAMENTO | GW |
| CA1210322 | PRAIRIE CREEK SP-STATE PARKS | NC | NR | T1 | HUMBOLDT | GW |
| CA4500161 | PRAIRIE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SHASTA | GW |
| CA1000424 | PRATHER WATER DISTRICT | NTNC | D1 | T1 | FRESNO | GW |
| CA3200130 | PRATTVILLE WATER ASSN | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA4000224 | PRECISION MUTUAL WATER COMPANY | NTNC | D1 | TD | SAN LUIS OBISPO | GW |
| CA5402031 | PREET MARKET | NC | NR | There are no treatment plants | TULARE | GW |
| CA2702537 | PREMIUM PACKING INC WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA4900945 | PRESENTATION SCHOOL | NTNC | D1 | T1 | SONOMA | GW |
| CA2010018 | PRESERVE AT MILLERTON LAKE WATER SYSTEM | C | D1 | TD | MADERA | GW |
| CA2090011 | PRESERVE_MILLERTON WASTEWTR TRT PLT | NP | There are no treatment plants | MADERA | ||
| CA3810700 | PRESIDIO OF SAN FRANCISCO | C | D2 | T3 | SAN FRANCISCO | SW |
| CA3890002 | PRESIDIO TRUST - RECYCLE WATER PROJECT | NP | There are no treatment plants | SAN FRANCISCO | ||
| CA4901090 | PRESTON WINERY | NC | NR | T1 | SONOMA | GW |
| CA0390801 | PRESTON YOUTH CORRECTIONAL FACILITY | NP | There are no treatment plants | AMADOR | ||
| CA3901456 | PRIMA FRUTTA PACKING | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1503521 | PRIMEX FARMS WATER SYSTEM | NTNC | D1 | TD | KERN | GW |
| CA3601122 | PRIMM VALLEY GOLF CLUB | NTNC | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1400045 | PRIMROSE LANE APARTMENTS | C | D1 | There are no treatment plants | INYO | GW |
| CA1503672 | PRINCE TRUCK STOP WATER SYSTEM | NC | NR | There are no treatment plants | KERN | GW |
| CA2701355 | PRINCES CAMP RESORT WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2900556 | PROSSER CAMPGROUND | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3610300 | PROVIDENCE MTNS SRA | NC | NR | TD | SAN BERNARDINO | GW |
| CA2701630 | PRUNEDALE CHEVRON WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2700702 | PRUNEDALE MWC | C | D1 | T2 | MONTEREY | GW |
| CA2701814 | PRUNEDALE PLAZA WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2700705 | PRUNEDALE SCHOOL WS | NTNC | D1 | TD | MONTEREY | GW |
| CA2701231 | PRUNEDALE SHOPPING CENTER WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702368 | PRUNETREE SHOPPING CENTER WS | NTNC | D1 | TD | MONTEREY | GW |
| CA0400010 | PSEA CAMP - DESABLA | NC | NR | TD | BUTTE | GW |
| CA3200301 | PSEA CAMP ALMANOR | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA2702094 | PSMCSD - BLACKIE RD WS | C | D1 | TD | MONTEREY | GW |
| CA2701670 | PSMCSD - LANGLEY/VALLE PACIFICO WS | C | D1 | T2 | MONTEREY | GW |
| CA2701515 | PSMCSD - MOSS LANDING HARBOR WS | C | D1 | TD | MONTEREY | GW |
| CA2700511 | PSMCSD - NORMCO | C | D1 | T1 | MONTEREY | GW |
| CA2710020 | PSMCSD - PAJARO | C | D2 | TD | MONTEREY | GW |
| CA2700771 | PSMCSD - SPRINGFIELD WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700773 | PSMCSD - SUNNY MESA | C | D1 | TD | MONTEREY | GW |
| CA2700787 | PSMCSD - VEGA RD WS | C | D1 | TD | MONTEREY | GW |
| CA2702007 | PSMCSD - VIERRA ESTATES WS | C | D1 | T1 | MONTEREY | GW |
| CA4100610 | PUENTE HOUSING SOLUTIONS | C | D1 | T1 | SAN MATEO | GW |
| CA3710800 | PUERTA LA CRUZ CC #14 | C | D1 | T1 | SAN DIEGO | GW |
| CA2000379 | PUMICE FLATS CAMPGROUND | NC | NR | There are no treatment plants | MADERA | GW |
| CA4800773 | PUNJABI DHABA | NC | NR | TD | SOLANO | GW |
| CA4400598 | PURESOURCE WATER, INC | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA5000454 | PURINA MILLS INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA4310021 | PURISSIMA HILLS WATER DISTRICT | C | D3 | TD | SANTA CLARA | SWP |
| CA0105018 | PURPLE ORCHID RESORT SPA | NC | D1 | There are no treatment plants | ALAMEDA | GW |
| CA2800594 | PUTAH CANYON CAMPGROUND | NC | NR | There are no treatment plants | NAPA | GW |
| CA0900502 | PYRAMID CREEK TRAILHEAD | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA5602513 | PYRAMID FLOWERS | NTNC | D1 | There are no treatment plants | VENTURA | GW |
| CA1900244 | PYRAMID LAKE RV RESORT | NC | D1 | T1 | LOS ANGELES | GW |
| CA2000956 | QUADY RESIDENCE AND WNERY | NTNC | NR | There are no treatment plants | MADERA | GW |
| CA1910305 | QUAIL CANYON SEA | NC | NR | TD | LOS ANGELES | GW |
| CA4300979 | QUAIL CREEK ESTATES MUTUAL WATER COMPANY | C | D1 | T1 | SANTA CLARA | GW |
| CA1000614 | QUAIL LAKE COMMUNITY CHURCH | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1090002 | QUAIL LAKE ESTATES WRF | NP | There are no treatment plants | FRESNO | ||
| CA5800826 | QUAIL RIDGE RV PARK | NC | D1 | There are no treatment plants | YUBA | GW |
| CA5400703 | QUAIL VALLEY RECREATIONAL VILLAGE | NC | NR | There are no treatment plants | TULARE | GW |
| CA4400701 | QUAKER CENTER | NC | NR | T2 | SANTA CRUZ | SW |
| CA1400500 | QUALITY INN SYSTEM | NC | NR | There are no treatment plants | INYO | GW |
| CA1910130 | QUARTZ HILL WATER DIST. | C | D4 | T2 | LOS ANGELES | SWP |
| CA2000568 | QUEEN'S INN BY THE RIVER | NC | NR | T1 | MADERA | GW |
| CA5403218 | QUESADILLA GORILLA | NC | NR | There are no treatment plants | TULARE | GW |
| CA3702686 | QUESTHAVEN MUNICIPAL WATER DISTRICT | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3301351 | QUICK CHEK WEST | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA2000259 | QUICK SERVE CHEVRON | NC | NR | There are no treatment plants | MADERA | GW |
| CA3701341 | QUIET OAKS MOBILE HOME PARK | C | D1 | T1 | SAN DIEGO | GW |
| CA3500559 | QUINTERO LABOR CAMP #1 (WRIGHT RD) | NC | NR | TD | SAN BENITO | GW |
| CA2800058 | QUINTESSA WINERY WATER SYSTEM | NC | NR | There are no treatment plants | NAPA | GW |
| CA0900308 | QUINTETTE SERVICE CORP WATER | C | D1 | T2 | EL DORADO | GW |
| CA4901162 | QUIVIRA VINEYARDS | NTNC | D1 | T2 | SONOMA | GU |
| CA1503226 | QVWD-WEST & EAST COMBINED WATER SYSTEM | C | D1 | T2 | KERN | GW |
| CA4400543 | R A FARMS | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2800593 | R RANCH AT THE LAKE | C | D1 | TD | NAPA | GW |
| CA3600257 | R W RANCH | NC | NR | TD | SAN BERNARDINO | GW |
| CA5800881 | R WAGON BAR | NC | NR | There are no treatment plants | YUBA | GW |
| CA4700669 | R-RANCH HEADQUARTERS | NC | NR | TD | SISKIYOU | GW |
| CA5402036 | R-RANCH IN THE SEQUOIAS | C | D1 | There are no treatment plants | TULARE | GW |
| CA4700839 | R-RANCH KLAMATH RIVER | NC | NR | TD | SISKIYOU | GW |
| CA5200864 | R-WILD HORSE RANCH | C | D1 | TD | TEHAMA | GW |
| CA1500458 | R.S. MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA4901122 | RACK & RIDDLE CUSTOM WINE SERVICES | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4000684 | RAGGED POINT INN | NTNC | D1 | T2 | SAN LUIS OBISPO | GU |
| CA4700545 | RAILROAD PARK RESORT | NC | NR | There are no treatment plants | SISKIYOU | GW |
| CA1500393 | RAINBIRD VALLEY MWC | C | D1 | TD | KERN | GW |
| CA3600356 | RAINBO BEACH | NC | NR | TD | SAN BERNARDINO | GW |
| CA5000440 | RAINBOW FARMS | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA3710016 | RAINBOW MUNICIPAL WD | C | D4 | T2 | SAN DIEGO | SWP |
| CA5000284 | RAINBOW SPORTS COMPLEX | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3100027 | RAINBOW SPRINGS PUBLIC WATER SYSTEM | NC | NR | There are no treatment plants | PLACER | GW |
| CA0900656 | RAINBOW TRACT WATER ASSOC | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4500334 | RAINBOW'S END MOBILE HOME PARK | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4300520 | RAINERI MUTUAL WATER COMPANY | C | D1 | T2 | SANTA CLARA | SW |
| CA4900611 | RAINS CREEK WATER DISTRICT | C | D1 | T1 | SONOMA | GW |
| CA5000467 | RAM NAAM MANDALI CHURCH OF MODESTO | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA4901120 | RAM'S GATE WINERY | NTNC | NR | T1 | SONOMA | GW |
| CA5500243 | RAMBLING HILLS ESTATES | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA3710019 | RAMONA MUNICIPAL WD | C | D4 | TD | SAN DIEGO | SWP |
| CA3790019 | RAMONA MUNICIPAL WD - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3702338 | RAMONA OAKS RV RESORT | NTNC | D1 | TD | SAN DIEGO | GW |
| CA3301529 | RAMONA WATER COMPANY | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA3900962 | RANCH COFFEE SHOP | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5101013 | RANCH HOUSE RESTAURANT & BAR | NC | NR | There are no treatment plants | SUTTER | GW |
| CA1400031 | RANCH ROAD ESTATES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA1000067 | RANCHERIA WATER & IMPRMNT ASSN | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3601186 | RANCHERITOS #2 | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600200 | RANCHERITOS MWC | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA4200826 | RANCHO ALEGRE | NC | D1 | T2 | SANTA BARBARA | SW |
| CA2700709 | RANCHO BORROMEO MWS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3390038 | RANCHO CA WATER DISTRICT - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA3310038 | RANCHO CALIFORNIA WATER DISTRICT | C | D5 | T2 | RIVERSIDE | SWP |
| CA3301534 | RANCHO CALIMESA MOBILE HOME PARK | C | D1 | TD | RIVERSIDE | GW |
| CA3301535 | RANCHO CARRILLO MWC | C | D1 | There are no treatment plants | RIVERSIDE | GW |
| CA2701278 | RANCHO CHAPARRAL MWC | C | D1 | T2 | MONTEREY | GU |
| CA4000653 | RANCHO COLINA MOBILE HOME PARK | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA5200575 | RANCHO COLORADO WS | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA4400624 | RANCHO CORRALITOS | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA4300848 | RANCHO DE LOMAS MUTUAL WATER COMPANY | C | There are no treatment plants | SANTA CLARA | GW | |
| CA3700859 | RANCHO DEL CAMPO WATER SYSTEM | C | D2 | T2 | SAN DIEGO | GW |
| CA0300053 | RANCHO DEL ORO MHP | C | D1 | TD | AMADOR | GW |
| CA4900514 | RANCHO DEL PARADISO-CAL WATER SVC (PUC) | C | D1 | TD | SONOMA | GWP |
| CA2400117 | RANCHO DEL REY GOLF CLUB | NC | NR | There are no treatment plants | MERCED | GW |
| CA3700936 | RANCHO ESTATES MUTUAL WATER CO. | C | D1 | T1 | SAN DIEGO | GW |
| CA2801030 | RANCHO LA JOTA | NC | NR | There are no treatment plants | NAPA | GW |
| CA3590001 | RANCHO LARIOS WASTEWATER FACILITY | NP | There are no treatment plants | SAN BENITO | ||
| CA1900679 | RANCHO LOS AMIGOS HOSPITAL | NTNC | D1 | T1 | LOS ANGELES | GW |
| CA0105017 | RANCHO LOS MOCHOS-BSA CAMP | NC | NR | There are no treatment plants | ALAMEDA | GW |
| CA1995011 | RANCHO MALIBU TENATIVE TRACT 46277 | NP | There are no treatment plants | LOS ANGELES | ||
| CA4200531 | RANCHO MARCELINO WATER | C | D2 | T2 | SANTA BARBARA | GW |
| CA4200865 | RANCHO MARIA GOLF COURSE | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3400149 | RANCHO MARINA | C | D1 | T2 | SACRAMENTO | GW |
| CA4500358 | RANCHO MARKET | NC | D1 | There are no treatment plants | SHASTA | GW |
| CA2000531 | RANCHO MARKET | NC | NR | There are no treatment plants | MADERA | GW |
| CA2790004 | RANCHO MONTEREY | NP | There are no treatment plants | MONTEREY | ||
| CA3410005 | RANCHO MURIETA COMMUNITY SERVI | C | D2 | T3 | SACRAMENTO | SW |
| CA3490002 | RANCHO MURIETA COMMUNITY SERVICE DISTRIC | NP | There are no treatment plants | SACRAMENTO | ||
| CA4000771 | RANCHO NIPOMO WATER COMPANY | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4200539 | RANCHO OSO | NC | D2 | T2 | SANTA BARBARA | GU |
| CA3710012 | RANCHO PAUMA MUTUAL WC | C | D1 | TD | SAN DIEGO | GW |
| CA3601085 | RANCHO PINO VERDE | C | D1 | There are no treatment plants | SAN BERNARDINO | GW |
| CA1503310 | RANCHO RIO EQUESTRIAN CENTER | NC | NR | TD | KERN | GW |
| CA4300577 | RANCHO ROBLES MUTUAL WATER COMPANY | C | D1 | TD | SANTA CLARA | GW |
| CA4000803 | RANCHO SALINAS MBWC | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA4400660 | RANCHO SAN ANDREAS | C | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA2790003 | RANCHO SAN CARLOS RW-STA. LUCIA PRESERVE | NP | There are no treatment plants | MONTEREY | ||
| CA3500581 | RANCHO SAN JOAQUIN MWC | C | D1 | TD | SAN BENITO | GW |
| CA3900558 | RANCHO SAN JOAQUIN WATER SYS | C | D1 | T2 | SAN JOAQUIN | GW |
| CA3790104 | RANCHO SANTA FE CSD | NP | There are no treatment plants | SAN DIEGO | ||
| CA3790023 | RANCHO SANTA FE ID - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3700918 | RANCHO SANTA TERESA MW CO. | C | D1 | T2 | SAN DIEGO | GW |
| CA1500327 | RANCHO SECO INC. WATER SYSTEM | C | D1 | TD | KERN | GW |
| CA3400232 | RANCHO SECO NGS (SMUD) | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3400302 | RANCHO SECO PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5601144 | RANCHO SESPE WORKERS IMP ASSOC | C | D1 | TD | VENTURA | GW |
| CA5200616 | RANCHO TEHAMA ASSOCIATION | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5205007 | RANCHO TEHAMA ELEM SCHOOL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0300108 | RANCHO VICTORIA TASTING ROOM | NC | NR | There are no treatment plants | AMADOR | GW |
| CA1907031 | RANCHO YBARRA CHRISTIAN CAMP | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4200837 | RANCHO YNECITA | C | D1 | T2 | SANTA BARBARA | GW |
| CA1500553 | RANCHOS DEL RIO | C | D1 | There are no treatment plants | KERN | GW |
| CA4800527 | RANCHOTEL | NC | NR | There are no treatment plants | SOLANO | GW |
| CA1510016 | RAND COMMUNITIES WATER DISTRICT | C | D1 | TD | KERN | GW |
| CA4900599 | RANDAL'S RANCHETTE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SONOMA | GW |
| CA0710010 | RANDALL-BOLD WATER TREATMENT PLANT | C | NR | T5 | CONTRA COSTA | SWP |
| CA1502225 | RANKIN RANCH | NC | NR | TD | KERN | GW |
| CA4500203 | RAPID RIVER MOBILEHOME PARK | C | D1 | TD | SHASTA | GW |
| CA3601175 | RASOR ROAD SERVICE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4901264 | RATNA LING RETREAT | NTNC | D1 | T2 | SONOMA | SW |
| CA5000499 | RATTO BROS, INC | NTNC | D1 | T1 | STANISLAUS | GW |
| CA1009120 | RAU DAIRY | C | D1 | There are no treatment plants | FRESNO | GW |
| CA3901341 | RAUDEL DELGADO WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5500071 | RAWHIDE MUTUAL WATER COMPANY | C | D1 | TD | TUOLUMNE | GW |
| CA1400026 | RAWSON CREEK MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | INYO | GW |
| CA4200867 | RAY WATER COMPANY | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA2300879 | RAY'S STATION WINERY | NTNC | D1 | T2 | MENDOCINO | GW |
| CA2801031 | RAYMOND VINEYARD & CELLAR | NTNC | D1 | Operator is not required | NAPA | GW |
| CA5000593 | RBVON | NTNC | D1 | T2 | STANISLAUS | GW |
| CA2800302 | REALM ESTATE | NC | NR | TD | NAPA | GW |
| CA5800850 | REBEL RIDGE VILLAGE | C | D1 | T1 | YUBA | GW |
| CA3301541 | RECHE CANYON MUTUAL WATER CO. | C | D1 | T1 | RIVERSIDE | GW |
| CA5205009 | RED BLUFF FISH & WILDLIFE OFFICE | NTNC | D1 | TD | TEHAMA | GW |
| CA5200611 | RED BLUFF RECREATION AREA | NC | D1 | There are no treatment plants | TEHAMA | GW |
| CA0901232 | RED FIR GROUP CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA1300561 | RED HILL MARINA | NC | NR | T2 | IMPERIAL | SW |
| CA5800202 | RED HILL SALOON | NC | NR | There are no treatment plants | YUBA | GW |
| CA2000609 | RED TOP MARKET | NC | NR | There are no treatment plants | MADERA | GW |
| CA1200544 | REDCREST WATER WORKS | C | D1 | T2 | HUMBOLDT | SW |
| CA5301004 | REDDING ODD FELLOWS CAMP | NC | NR | TD | TRINITY | GW |
| CA4500149 | REDDING TRAVEL CENTER | NTNC | D1 | TD | SHASTA | GW |
| CA3610037 | REDLANDS CITY MUD-WATER DIV | C | D5 | T5 | SAN BERNARDINO | SW |
| CA3600205 | REDLANDS COLONY PIPELINE ASSOCIATION | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2000382 | REDS MEADOW RESORT | NC | NR | There are no treatment plants | MADERA | GW |
| CA1210011 | REDWAY C.S.D. | C | D2 | T2 | HUMBOLDT | SW |
| CA2300952 | REDWOOD DRIVE-IN | NC | D1 | TD | MENDOCINO | GW |
| CA1206001 | REDWOOD EMPIRE G&CC | NC | NR | TD | HUMBOLDT | GW |
| CA4901179 | REDWOOD EMPIRE SAWMILL | NTNC | D1 | TD | SONOMA | GW |
| CA4100522 | REDWOOD GLEN CAMP & CONFERENCE CTR | C | D1 | T2 | SAN MATEO | SW |
| CA4900639 | REDWOOD HEIGHTS MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA0800647 | REDWOOD MAINT. & OPER. | NTNC | D1 | TD | DEL NORTE | GW |
| CA0800526 | REDWOOD PARK C.S.D. | C | D1 | TD | DEL NORTE | GW |
| CA4100510 | REDWOOD TERRACE MUTUAL | C | D1 | T1 | SAN MATEO | GU |
| CA2310008 | REDWOOD VALLEY COUNTY WATER DISTRICT | C | D2 | T3 | MENDOCINO | SW |
| CA2210928 | REDWOODS 70'S WATER SYSTEM | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2210915 | REDWOODS MAIN WATER SYSTEM | NC | D1 | There are no treatment plants | MARIPOSA | GW |
| CA2300635 | REDWOODS RIVER RESORT & CAMPGROUND | NC | D1 | TD | MENDOCINO | GU |
| CA1010027 | REEDLEY, CITY OF | C | D3 | T2 | FRESNO | GW |
| CA5200500 | REEDS CREEK ESTATES | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5200540 | REEDS CREEK SCHOOL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA4500359 | REEDS MARKET | NC | NR | There are no treatment plants | SHASTA | GW |
| CA1700604 | REEL IN RESORT | NC | D1 | TD | LAKE | GW |
| CA1900145 | REESEDALE MUTUAL | C | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4300951 | REFORESTATION TECHNOLOGIES INTERNATIONAL | NTNC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA4210303 | REFUGIO STATE BEACH | NC | NR | T2 | SANTA BARBARA | GW |
| CA3500929 | REITER BERRY WATER SYSTEM | NC | NR | There are no treatment plants | SAN BENITO | GW |
| CA3601134 | RELAX INN | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4400758 | RENAISSANCE HIGH SCHOOL | NTNC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA5000502 | RESENDIZ FRUIT BARN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA1210022 | RESORT IMPROVEMENT DISTRICT #1 | C | D2 | T2 | HUMBOLDT | SW |
| CA1290022 | RESORT IMPRVMT. DIST. #1 - RW | NP | There are no treatment plants | HUMBOLDT | ||
| CA4200977 | RESOURCE CENTER | NTNC | D1 | T2 | SANTA BARBARA | GW |
| CA4000654 | RESTHAVEN MOBILE HOME PARK | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA1503682 | REVOL GREENS | NTNC | D1 | TD | KERN | GW |
| CA5000427 | REWORLD STANISLAUS, INC | NTNC | D1 | T2 | STANISLAUS | GW |
| CA3701568 | REY RIVER RANCH CORP. | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5200626 | REYNOLDS CONSUMER PRODUCTS (RED BLUFF) | NTNC | D1 | TD | TEHAMA | GW |
| CA3610038 | RIALTO, CITY OF | C | D4 | T3 | SAN BERNARDINO | SWP |
| CA3410802 | RICHARD A. MCGEE TRAINING CENTER | NTNC | D1 | T2 | SACRAMENTO | GW |
| CA3701780 | RICHARDSON BEARDSLEY PARK INC. | C | D1 | Missing treatment classification in SDWIS | SAN DIEGO | GW |
| CA1200597 | RICHARDSON GROVE CAMPGROUND & RV PARK | NC | NR | TD | HUMBOLDT | GW |
| CA1210307 | RICHARDSON GROVE SP-STATE PARKS | NC | NR | T2 | HUMBOLDT | SW |
| CA5200565 | RICHFIELD ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5410024 | RICHGROVE COMMUNITY SERVICES DISTRICT | C | D2 | T2 | TULARE | GW |
| CA1800573 | RICHMOND ELEMENTARY SCHOOL | NTNC | D1 | T1 | LASSEN | GW |
| CA0605006 | RICHMOND HUNTING CLUB-MAXWELL | NC | NR | There are no treatment plants | COLUSA | GW |
| CA1700603 | RICHMOND PARK RESORT | NC | D1 | T3 | LAKE | SW |
| CA0400062 | RICHVALE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | BUTTE | GW |
| CA3400443 | RICK'S HACIENDA (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2900089 | RIDGE CAFE-WATER SYSTEM | NC | NR | There are no treatment plants | NEVADA | GW |
| CA4400618 | RIDGE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CRUZ | SWP |
| CA4400585 | RIDGEVIEW ESTATES MWC | C | D1 | T1 | SANTA CRUZ | GW |
| CA2300708 | RIDGEWOOD WATER SYSTEM | C | D1 | T2 | MENDOCINO | GU |
| CA4900603 | RIEBLI MUTUAL WATER COMPANY | C | D1 | TD | SONOMA | GW |
| CA3601147 | RILEY'S FARM | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3601148 | RILEY'S LOG CABIN FARM | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3600512 | RILEYS PLACE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4000750 | RIM ROCK WATER COMPANY | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA3790018 | RINCON DEL DIABLO - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3710018 | RINCON DEL DIABLO MWD (ID-1) | C | D4 | There are no treatment plants | SAN DIEGO | SWP |
| CA3710044 | RINCON DEL DIABLO MWD (ID-A) | C | D4 | There are no treatment plants | SAN DIEGO | SWP |
| CA4900600 | RINCON VALLEY MOBILE ESTATES | C | D1 | TD | SONOMA | GW |
| CA5601137 | RINCON WATER & ROAD WORKS | C | D1 | There are no treatment plants | VENTURA | SWP |
| CA4000655 | RINCONADA TRAILER PARK | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA5210005 | RIO ALTO WATER DISTRICT | C | D2 | There are no treatment plants | TEHAMA | GW |
| CA5290005 | RIO ALTO WATER DISTRICT - WWTP SYSTEM | NP | There are no treatment plants | TEHAMA | ||
| CA1300620 | RIO BEND RV GOLF RESORT & STORM CROSSING | C | D1 | T2 | IMPERIAL | SW |
| CA1502229 | RIO BRAVO GREELEY SCHOOL WATER SYSTEM | NTNC | D1 | T3 | KERN | GW |
| CA3400229 | RIO COSUMNES CORRECTIONAL CENTER [SWS] | C | D2 | T3 | SACRAMENTO | GW |
| CA3600367 | RIO DEL COLORADO | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1210012 | RIO DELL, CITY OF | C | D2 | T3 | HUMBOLDT | SW |
| CA3410018 | RIO LINDA/ELVERTA COMMUNITY WATER DIST | C | D3 | T1 | SACRAMENTO | GW |
| CA4900577 | RIO LINDO ADVENTIST ACADEMY | C | D1 | T2 | SONOMA | GU |
| CA5610035 | RIO MANOR MUTUAL WATER CO | C | D1 | TD | VENTURA | GW |
| CA2000245 | RIO MESA GOLF INC | NC | NR | There are no treatment plants | MADERA | GW |
| CA5602407 | RIO MESA HIGH SCHOOL/OXNARD UHS | NTNC | D2 | TD | VENTURA | GW |
| CA5200555 | RIO RANCH COMMUNITY SVCS DIST | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA5602408 | RIO SCHOOL DIST/ RIO REAL SCHOOL | NTNC | D1 | There are no treatment plants | VENTURA | SWP |
| CA5602406 | RIO SCHOOL DIST/RIO DEL VALLE SCHOOL | NTNC | D1 | There are no treatment plants | VENTURA | SWP |
| CA3400420 | RIO VIENTO RV CAMP [SWS] | NC | NR | T2 | SACRAMENTO | GW |
| CA5200508 | RIO VISTA MOBILE HOME PARK | C | D1 | TD | TEHAMA | GW |
| CA4500106 | RIO VISTA MOBILEHOME ESTATES | C | D1 | There are no treatment plants | SHASTA | GW |
| CA3902207 | RIPON CHURCH OF CHRIST | NC | D2 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901331 | RIPON USD-COLONY OAK SCHOOL | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3901462 | RIPON VFW POST 1051 WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA3910007 | RIPON, CITY OF | C | D4 | TD | SAN JOAQUIN | GW |
| CA2000602 | RIPPERDAN COMMUNITY DAY SCHOOL | NTNC | D1 | TD | MADERA | GW |
| CA2000885 | RIPPERDAN DEHYDRATOR | NC | NR | T1 | MADERA | GW |
| CA2701009 | RIPPLEWOOD RESORT WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5800823 | RISELEN PARK | C | D1 | T1 | YUBA | GW |
| CA0500091 | RITE OF PASSAGE/SIERRA RIDGE | C | TD | T2 | CALAVERAS | SW |
| CA4900745 | RIVER BEND RESORT | NC | NR | TD | SONOMA | GW |
| CA4500092 | RIVER BREEZE MOBILE HOME PARK | C | D1 | TD | SHASTA | GW |
| CA3400464 | RIVER CITY RECOVERY CENTER, INC. (SWS) | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2000824 | RIVER CREEK GOLF CLUB | NC | NR | There are no treatment plants | MADERA | GW |
| CA2300605 | RIVER ESTATES MUTUAL WATER COMPANY | C | D1 | T1 | MENDOCINO | GW |
| CA4400621 | RIVER GROVE MUTUAL WATER ASSN | C | D1 | T2 | SANTA CRUZ | SW |
| CA5800820 | RIVER HIGHLANDS CSD | C | D1 | There are no treatment plants | YUBA | GW |
| CA5490017 | RIVER ISLAND EAST | NP | There are no treatment plants | TULARE | ||
| CA3600375 | RIVER LODGE RESORT | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA3901365 | RIVER MILL, THE | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA5000483 | RIVER OAK GRACE-WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5105002 | RIVER OAKS GOLF CLUB | NC | D1 | There are no treatment plants | SUTTER | GW |
| CA5000501 | RIVER OAKS/KINGDOM HALL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3301642 | RIVER OASIS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA0400106 | RIVER ONE RV PARK | NC | NR | There are no treatment plants | BUTTE | GW |
| CA0310006 | RIVER PINES PUD | C | D1 | T2 | AMADOR | GW |
| CA2800035 | RIVER RANCH FARM WORKER CENTER | C | D1 | TD | NAPA | GW |
| CA3600155 | RIVER RANCH MHP | C | D1 | TD | SAN BERNARDINO | GW |
| CA5200510 | RIVER RANCH MOBILE HOME PARK | C | D1 | TD | TEHAMA | GW |
| CA3200617 | RIVER RANCH RV PARK | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA2701063 | RIVER RD WS #25 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702396 | RIVER RD WS #26 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2702444 | RIVER RD WS #28 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2702799 | RIVER RD WS #34 | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA0400111 | RIVER REFLECTIONS RV & CAMPGROUND | NC | NR | There are no treatment plants | BUTTE | GW |
| CA5400556 | RIVER RETREAT MUTUAL WATER COMPANY | C | D1 | TD | TULARE | GW |
| CA5000020 | RIVER ROAD MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000447 | RIVER ROAD PLAZA | NTNC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3901487 | RIVER ROAD PRODUCE WATER SYSTEM | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA1100749 | RIVER VALLEY CHRISTIAN SCHOOL | NTNC | D1 | There are no treatment plants | GLENN | GW |
| CA5200558 | RIVER VIEW MHC LLC | C | D1 | TD | TEHAMA | GW |
| CA5403061 | RIVER VIEW RESTAURANT | NC | D1 | T2 | TULARE | SW |
| CA3400107 | RIVER'S EDGE MARINA & RESORT | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA5000211 | RIVERBANK LRA | NTNC | D1 | TD | STANISLAUS | GW |
| CA5010018 | RIVERBANK, CITY OF | C | D3 | There are no treatment plants | STANISLAUS | GW |
| CA4200950 | RIVERBENCH WINERY | NC | D1 | T1 | SANTA BARBARA | GW |
| CA1000426 | RIVERBEND MOBILE HOME & RV PARK | C | D1 | TD | FRESNO | GW |
| CA1200687 | RIVERBEND MOBILE HOME PARK | C | D1 | There are no treatment plants | HUMBOLDT | GW |
| CA3400141 | RIVERBOAT MARINA | NC | NR | T2 | SACRAMENTO | GW |
| CA3301040 | RIVERDALE ESTATES | C | D1 | TD | RIVERSIDE | GW |
| CA5000019 | RIVERDALE PARK TRACT CSD | C | D1 | TD | STANISLAUS | GW |
| CA1090016 | RIVERDALE PUBLIC UTILITY DISTRICT | NP | There are no treatment plants | FRESNO | ||
| CA1010028 | RIVERDALE PUBLIC UTILITY DISTRICT | C | D2 | TD | FRESNO | GW |
| CA1500452 | RIVERDALE VILLAGE | C | D1 | TD | KERN | GW |
| CA1300664 | RIVERFRONT MUTUAL WATER COMPANY | C | D1 | T1 | IMPERIAL | GW |
| CA2000844 | RIVERGOLD ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | MADERA | GW |
| CA1500251 | RIVERKERN MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA4500094 | RIVERLAND MOBILEHOME PARK | C | D1 | TD | SHASTA | GW |
| CA5400929 | RIVERLAND RESORT | C | D1 | TD | TULARE | GW |
| CA3600365 | RIVERLAND RESORT | NC | NR | T2 | SAN BERNARDINO | SW |
| CA1500481 | RIVERNOOK CAMPGROUND | C | D1 | There are no treatment plants | KERN | GW |
| CA0900417 | RIVERS BEND RESORT | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0105002 | RIVERS END MARINA | NC | NR | There are no treatment plants | ALAMEDA | GW |
| CA1900868 | RIVERS END TRAILER PARK | C | D1 | T2 | LOS ANGELES | GW |
| CA2701273 | RIVERSIDE CAMPGROUND WS | NC | NR | T2 | MONTEREY | GU |
| CA5200531 | RIVERSIDE CROSSING MHP | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA3310028 | RIVERSIDE CSA #122-MESA VERDE | C | D2 | T2 | RIVERSIDE | GW |
| CA1200518 | RIVERSIDE CSD | C | D1 | TD | HUMBOLDT | GW |
| CA3690017 | RIVERSIDE HIGHLAND WATER COMPANY | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA3610057 | RIVERSIDE HIGHLAND WATER COMPANY | C | D4 | TD | SAN BERNARDINO | GW |
| CA3900762 | RIVERSIDE MOBILE HOME PARK | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3310031 | RIVERSIDE, CITY OF | C | D5 | T4 | RIVERSIDE | GU |
| CA3390031 | RIVERSIDE, CITY OF - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA2010016 | RIVERSTONE/ROOTCREEK WATER DISTRICT | C | D2 | TD | MADERA | GW |
| CA2700032 | RIVERVIEW FARMS WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA1502750 | RIVERVIEW HOMEOWNERS ASSOCIATION | C | D1 | There are no treatment plants | KERN | GW |
| CA4500306 | RIVERVIEW INN | NC | NR | There are no treatment plants | SHASTA | GW |
| CA5000090 | RIVERVIEW MOBILE HOME ESTATES | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA0707553 | RIVERVIEW MOBILE HOME PARK | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA1000196 | RIVERVIEW SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA0707577 | RIVERVIEW WATER ASSOCIATION | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA5401094 | RJ'S TRAVEL CENTER | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400959 | RM PYLES BOYS CAMP | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400760 | RMRC-BELKNAP CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400863 | RMRC-CAMP 3 CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400945 | RMRC-COY FLAT CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5401089 | RMRC-ESHOM CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400868 | RMRC-FAIRVIEW CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400890 | RMRC-FIR & COVE GROUP CAMPGROUNDS | NC | NR | There are no treatment plants | TULARE | GW |
| CA5402017 | RMRC-GOLDLEDGE CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400848 | RMRC-HEADQUARTERS CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5402016 | RMRC-HOSPITAL FLAT CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400736 | RMRC-LOWER COFFEE CAMP DAY USE | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400766 | RMRC-QUAKING ASPEN CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400942 | RMRC-REDWOOD MEADOW CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400889 | RMRC-STONY CREEK CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5403109 | RMRC-UPPER COFFEE CAMP DAY USE | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400738 | RMRC-WISHON CAMPGROUND | NC | NR | There are no treatment plants | TULARE | GW |
| CA5700506 | ROAD TRIP BAR & GRILL | NC | NR | There are no treatment plants | YOLO | GW |
| CA0300085 | ROARING CAMP | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4400825 | ROARING CAMP RAILROAD INC | NC | NR | TD | SANTA CRUZ | GW |
| CA0900420 | ROBBS RESORT | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2801032 | ROBERT KEENAN WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA4901459 | ROBERT YOUNG FAMILY LIMITED PARTNER | NTNC | NR | T1 | SONOMA | GW |
| CA5000486 | ROBERTS FERRY NUT CO, INC (WS) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000155 | ROBERTS FERRY SCHOOL CAFETERIA | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1503645 | ROBERTS INVESTMENTS WATER SYSTEM | NTNC | D1 | There are no treatment plants | KERN | GWP |
| CA4900913 | ROBIN WAY WATER SYSTEM | C | D1 | TD | SONOMA | GW |
| CA2600560 | ROBINSON CREEK CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA0400021 | ROBINSON'S CORNER MHP | C | D1 | TD | BUTTE | GW |
| CA2701822 | ROBLEY PROPERTY MWS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4901420 | ROCHE FAMILY WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA4901287 | ROCHIOLI WINERY | NC | NR | T1 | SONOMA | GW |
| CA1400191 | ROCK CREEK LAKE BOAT DOCK & GROUP CAMP | NC | NR | There are no treatment plants | INYO | GW |
| CA1400192 | ROCK CREEK LAKE CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA1400015 | ROCK CREEK LAKES RESORT | NC | NR | There are no treatment plants | INYO | GW |
| CA2600553 | ROCK CREEK LODGE | NC | NR | There are no treatment plants | MONO | GW |
| CA5400884 | ROCKFORD SCHOOL | NTNC | D1 | There are no treatment plants | TULARE | GW |
| CA4800596 | ROCKWELL COLLINS INC. (FKA UPCO-UTAS) | NTNC | D1 | TD | SOLANO | GW |
| CA4301013 | ROCKWOOD ESTATES MUTUAL WATER COMPANY | C | D1 | T1 | SANTA CLARA | GW |
| CA3600209 | ROCKY COMFORT MUTUAL WATER CO | C | D1 | There are no treatment plants | SAN BERNARDINO | SWP |
| CA2702293 | ROD MCLELLAN BOTANICALS WS | NTNC | D1 | T1 | MONTEREY | GW |
| CA3900585 | RODEWAY INN | NC | NR | There are no treatment plants | SAN JOAQUIN | GW |
| CA4900897 | RODNEY STRONG VINEYARDS | NTNC | D1 | T2 | SONOMA | GW |
| CA2300907 | ROEDERER ESTATE WINERY | NTNC | D1 | TD | MENDOCINO | GW |
| CA2310002 | ROGINA WATER COMPANY INC. | C | D2 | T1 | MENDOCINO | GW |
| CA4910014 | ROHNERT PARK, CITY OF | C | D4 | T2 | SONOMA | GW |
| CA2000825 | ROLLIN WAGON TRAILER CLUB | NC | NR | There are no treatment plants | MADERA | GW |
| CA5700707 | ROLLING ACRES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | YOLO | GW |
| CA1400010 | ROLLING GREEN UTILITIES, INC. | C | D1 | There are no treatment plants | INYO | GW |
| CA4200851 | ROLLING HILLS MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA2700713 | ROLLING HILLS RANCHO WA | C | D1 | T2 | MONTEREY | GU |
| CA4900846 | ROLLING OAKS ROAD ASSOCIATION | C | D1 | TD | SONOMA | GW |
| CA3103283 | ROLLINS LAKE RESORT, LONG RAVINE | NC | NR | T1 | PLACER | GW |
| CA2900547 | ROLLINS LAKESIDE INN | NC | NR | T1 | NEVADA | GW |
| CA3400458 | ROMA'S PIZZERIA | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA0300101 | ROMBAUER SIERRA FOOTHILLS | NC | NR | T2 | AMADOR | GW |
| CA2801033 | ROMBAUER VINEYARDS | NTNC | D1 | There are no treatment plants | NAPA | GW |
| CA1000208 | ROOSEVELT ELEMENTARY SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA4500143 | ROOSTER'S LANDING | NC | NR | There are no treatment plants | SHASTA | GW |
| CA3500549 | ROSA MORADA MUTUAL WATER COMPANY | C | D1 | TD | SAN BENITO | GW |
| CA1510018 | ROSAMOND CSD | C | D3 | T1 | KERN | SWP |
| CA1590015 | ROSAMOND CSD-RECYCLED WATER SYSTEM | NP | There are no treatment plants | KERN | ||
| CA1502232 | ROSAMOND MOBILEHOME PARK | C | D1 | TD | KERN | GW |
| CA1502231 | ROSAMOND SCHOOL WATER SYSTEM | NTNC | D1 | There are no treatment plants | KERN | SWP |
| CA4200579 | ROSARIO PARK | C | D2 | T1 | SANTA BARBARA | GW |
| CA1500426 | ROSE VILLA APARTMENTS | C | D1 | TD | KERN | GW |
| CA3100538 | ROSECREST MUTUAL | C | D1 | There are no treatment plants | PLACER | GW |
| CA2702121 | ROSEHART INDUSTRIAL PARK WS | NTNC | D1 | TD | MONTEREY | GW |
| CA4900675 | ROSELAND MOBILE HOME PARK | C | D1 | TD | SONOMA | GW |
| CA4300562 | ROSEVIEW HEIGHTS MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA3190001 | ROSEVILLE REGIONAL W. W. TREATMENT PLANT | NP | There are no treatment plants | PLACER | ||
| CA4901411 | ROTH WINERY | NC | NR | T1 | SONOMA | GW |
| CA1700727 | ROTTEN ROBBIE | NC | D1 | TD | LAKE | GW |
| CA2900530 | ROUGH & READY VILLAGE | C | D1 | T1 | NEVADA | GW |
| CA3705068 | ROUGH ACRES FOUNDATION | NC | D1 | TD | SAN DIEGO | GW |
| CA2801035 | ROUND HILL WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA1500561 | ROUND MOUNTAIN WATER COMPANY | C | D1 | T1 | KERN | GW |
| CA2300830 | ROUND VALLEY ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | MENDOCINO | GW |
| CA2300829 | ROUND VALLEY HIGH SCHOOL | NTNC | D1 | There are no treatment plants | MENDOCINO | GW |
| CA1400019 | ROUND VALLEY SCHOOL | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA4400762 | ROUNTREE FACILITY(PREV. SHERIFF'S REHAB) | C | D1 | TD | SANTA CRUZ | GW |
| CA3601187 | ROUTE 66 MARKET | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA1995013 | ROWLAND WATER DISTRICT | NP | There are no treatment plants | LOS ANGELES | ||
| CA1910194 | ROWLAND WATER DISTRICT | C | D5 | There are no treatment plants | LOS ANGELES | SWP |
| CA3301588 | ROYAL CARRIZO HOA | C | D1 | T1 | RIVERSIDE | GW |
| CA2702388 | ROYAL OAK PLACE WS | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2702771 | ROYAL OAKS MARKET WS | NC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700636 | ROYAL OAKS PARK WS | NC | NR | TD | MONTEREY | GW |
| CA2700970 | ROYAL SIERRA ESTATES WS | C | D1 | TD | MONTEREY | GW |
| CA5700568 | RRG GARDEN FARMING OPERATIONS | NC | NR | There are no treatment plants | YOLO | GW |
| CA1504012 | RS UTILITIES WATER SYSTEM | NTNC | D1 | T2 | KERN | GW |
| CA4200926 | RSM RESORT LLC | NC | There are no treatment plants | SANTA BARBARA | GW | |
| CA3310044 | RUBIDOUX COMMUNITY SD | C | D3 | T3 | RIVERSIDE | GW |
| CA3390044 | RUBIDOUX CSD - RECLAMATION | NP | There are no treatment plants | RIVERSIDE | ||
| CA1910140 | RUBIO CANON LAND & WATER ASSOCIATION | C | D3 | T3 | LOS ANGELES | SW |
| CA1000200 | RUBYS VALLEY CARE HOME | C | D1 | There are no treatment plants | FRESNO | GW |
| CA2801014 | RUDD WINES, INC., DBA RUDD | NC | NR | Operator is not required | NAPA | GW |
| CA3610062 | RUNNING SPRINGS WATER DISTRICT | C | D2 | T2 | SAN BERNARDINO | SWP |
| CA3690015 | RUNNING SPRINGS WATER DISTRICT - RECLAMA | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA4810013 | RURAL NORTH VACAVILLE WATER DISTRICT | C | D1 | T2 | SOLANO | GW |
| CA4200928 | RUSACK VINEYARDS | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA5500369 | RUSH CREEK LODGE WATER SYSTEM | NTNC | D1 | T1 | TUOLUMNE | GW |
| CA5301017 | RUSH CREEK MUTUAL WATER SYSTEM | C | D1 | T2 | TRINITY | SW |
| CA4810035 | RUSH RANCH OPEN SPACE | NC | NR | T1 | SOLANO | GW |
| CA4990010 | RUSSIAN RIVER COUNTY SANITATION DISTRICT | NP | NA | There are no treatment plants | SONOMA | |
| CA4910008 | RUSSIAN RIVER COUNTY WATER DISTRICT | C | D2 | T1 | SONOMA | GW |
| CA4900665 | RUSSIAN RIVER MUTUAL WATER CO. | C | D1 | TD | SONOMA | GW |
| CA4900974 | RUSSIAN RIVER VINEYARDS & RESTAURANT | NC | NR | T1 | SONOMA | GW |
| CA4901115 | RUSSIAN RIVER WINERY | NC | NR | TD | SONOMA | GW |
| CA0707601 | RUSSOS MOBILE PARK | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA5305003 | RUTH LAKE MARINA | NC | NR | TD | TRINITY | GW |
| CA5305004 | RUTH LAKE RECREATION AREA | NC | NR | TD | TRINITY | GW |
| CA2800023 | RUTHERFORD HILL MUTUAL WATER | NTNC | D1 | TD | NAPA | GW |
| CA2801084 | RUTHERFORD HILL WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA3400151 | RYDE HOTEL | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2400211 | RYEL FAMILY TRUST | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA4000523 | S & T MUTUAL WATER COMPANY | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4901273 | S & W WAREHOUSING, LLC | NTNC | D1 | There are no treatment plants | SONOMA | GW |
| CA3901318 | S M S BRINERS INC | NTNC | D1 | T3 | SAN JOAQUIN | GW |
| CA2000724 | SA 14 CHUK CHANSE SUBDIVISION | C | D1 | TD | MADERA | GW |
| CA4200743 | SABLE OFFSHORE CORP LAS FLORES CANYON | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA4200691 | SABLE OFFSHORE CORP POPCO | NTNC | D1 | T1 | SANTA BARBARA | GW |
| CA1400193 | SABRINA CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA3400296 | SAC CITY MOBILE HOME COMMUNITY LP | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3400208 | SAC VALLEY TRUCK STOP | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3490003 | SACRAMENTO CO. AIRPORT - RECYC WATER | NP | There are no treatment plants | SACRAMENTO | ||
| CA3400139 | SACRAMENTO INTERNATIONAL AIRPORT [SWS] | NTNC | D4 | There are no treatment plants | SACRAMENTO | SWP |
| CA1100250 | SACRAMENTO NAT. WILDLIFE REFUGE | NC | NR | There are no treatment plants | GLENN | GW |
| CA3400216 | SACRAMENTO RACEWAY | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3490001 | SACRAMENTO REGIONAL COUNTY SAN. DISTRICT | NP | There are no treatment plants | SACRAMENTO | ||
| CA3400425 | SACRAMENTO RENDERING | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4500255 | SACRAMENTO RIVER RV PARK | C | D1 | TD | SHASTA | GW |
| CA3410001 | SACRAMENTO SUBURBAN WATER DISTRICT | C | D4 | T2 | SACRAMENTO | SWP |
| CA5700588 | SACRAMENTO YACHT CLUB | NC | NR | There are no treatment plants | YOLO | GW |
| CA3701407 | SACRED MOUNTAIN INN | NC | D1 | T1 | SAN DIEGO | GW |
| CA5700584 | SACWEST RV PARK AND CAMPGROUND | NC | NR | TD | YOLO | GW |
| CA2701298 | SADDLE MOUNTAIN WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA5200645 | SADDLEBACK MUTUAL WATER CO. | C | D1 | There are no treatment plants | TEHAMA | GW |
| CA2600599 | SADDLEBAG LAKE CAMPGROUND | NC | NR | There are no treatment plants | MONO | GW |
| CA4901251 | SAFARI WEST | NTNC | D1 | T1 | SONOMA | GW |
| CA1400186 | SAGE FLAT CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA4200856 | SAGEBRUSH ANNIE'S RESTAURANT | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3900964 | SAHARA MOBILE COURT | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4901432 | SAINI WINERY | NC | NR | There are no treatment plants | SONOMA | GW |
| CA1900057 | SAINT ANDREWS ABBEY | NTNC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA4900911 | SAINT ANNE'S CROSSING WINERY | NC | NR | T1 | SONOMA | GW |
| CA4901255 | SAINT FRANCIS WINERY-WILD OAK VINEYARDS | NTNC | D1 | T1 | SONOMA | GW |
| CA4200842 | SAINT MARIE MOBILE HOME PARK | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4900949 | SAINTS PETER & PAUL RUSSIAN CHURCH | NC | NR | TD | SONOMA | GW |
| CA2800077 | SAINTSBURY WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA5700758 | SAKATA SEED WOODLAND STATION | NTNC | D1 | TD | YOLO | GW |
| CA1300564 | SALAMANDER TRAILER PARK | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA5000583 | SALIDA HULLING ASSOCIATION WATER SYSTEM | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5090901 | SALIDA SANITARY DISTRICT | NP | There are no treatment plants | STANISLAUS | ||
| CA2702021 | SALINAS TRANSPLANT WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA2710851 | SALINAS VALLEY STATE PRISON | C | D2 | T2 | MONTEREY | GW |
| CA4901168 | SALMON CREEK MIDDLE SCHOOL | NTNC | D1 | T2 | SONOMA | GW |
| CA4600061 | SALMON LAKE LODGE | NC | NR | There are no treatment plants | SIERRA | GW |
| CA4900912 | SALT & STONE RESTAURANT | NC | NR | TD | SONOMA | GW |
| CA4500097 | SALT CREEK RESORT LLC | NC | NR | TD | SHASTA | GW |
| CA4500018 | SALT CREEK SUMMER HOMES | NC | D1 | TD | SHASTA | GW |
| CA0500050 | SALT SPRINGS VALLEY RES. & CAMPGRND | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA5304502 | SALYER HEIGHTS W.S., INC | C | D1 | T2 | TRINITY | SW |
| CA5304501 | SALYER MUTUAL WC (FORMERLY RIVERVIEW AC) | C | D1 | T2 | TRINITY | SW |
| CA4400558 | SAN ANDREAS MUTUAL WATER CO | C | D1 | T1 | SANTA CRUZ | GW |
| CA3400448 | SAN ANDREAS RV PARK | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA3610082 | SAN ANTONIO CANYON MSC | C | D1 | TD | SAN BERNARDINO | GW |
| CA2701183 | SAN ANTONIO LAKE PARK NORTH WS | NC | NR | TD | MONTEREY | GW |
| CA2701184 | SAN ANTONIO LAKE PARK SOUTH WS | NC | NR | T2 | MONTEREY | SW |
| CA3301380 | SAN ANTONIO MOBILE HOME PARK | C | D1 | T1 | RIVERSIDE | GW |
| CA2700727 | SAN ANTONIO SCHOOL DISTRICT WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA3610085 | SAN ANTONIO WATER COMPANY | C | D3 | TD | SAN BERNARDINO | GW |
| CA3601107 | SAN ANTONIO WINERY | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2700728 | SAN ARDO WD | C | D1 | TD | MONTEREY | GW |
| CA4200714 | SAN AUGUSTINE MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA3500833 | SAN BENITO COUNTY HISTORICAL PARK | NC | NR | There are no treatment plants | SAN BENITO | GW |
| CA3590003 | SAN BENITO COUNTY WATER DISTRICT | NP | There are no treatment plants | SAN BENITO | ||
| CA3510007 | SAN BENITO COUNTY WATER DISTRICT | C | D1 | T4 | SAN BENITO | SW |
| CA3500571 | SAN BENITO HIGH SCHOOL | NTNC | D2 | There are no treatment plants | SAN BENITO | GW |
| CA3610039 | SAN BERNARDINO CITY | C | D5 | T5 | SAN BERNARDINO | GW |
| CA3610019 | SAN BERNARDINO VALLEY WD | C | D4 | TD | SAN BERNARDINO | GW |
| CA4190006 | SAN CARLOS RECYCLED WATER PROGRAM | NP | There are no treatment plants | SAN MATEO | ||
| CA5601116 | SAN CAYETANO MUTUAL WATER CO | C | D1 | TD | VENTURA | GW |
| CA2701325 | SAN CLEMENTE RANCHO WS | NC | NR | T2 | MONTEREY | GU |
| CA3710042 | SAN DIEGO COUNTY WATER AUTHORITY | C | D5 | T5 | SAN DIEGO | SW |
| CA3790042 | SAN DIEGO COUNTY WATER AUTHORITY-RECYCLE | NP | There are no treatment plants | SAN DIEGO | ||
| CA3701567 | SAN DIEGO MOUNTAIN LODGE | NC | NR | T2 | SAN DIEGO | GW |
| CA3710020 | SAN DIEGO, CITY OF | C | D5 | T5 | SAN DIEGO | SW |
| CA3790020 | SAN DIEGO, CITY OF- RECYCLED WATER DEPT. | NP | There are no treatment plants | SAN DIEGO | ||
| CA3710021 | SAN DIEGUITO WD | C | D3 | There are no treatment plants | SAN DIEGO | SWP |
| CA3790021 | SAN DIEGUITO WD-RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3790105 | SAN ELIJO JPA - RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA1910143 | SAN FERNANDO-CITY, WATER DEPT. | C | D3 | T2 | LOS ANGELES | GW |
| CA3810010 | SAN FRANCISCO INTERNATIONAL AIRPORT | NTNC | D3 | There are no treatment plants | SAN FRANCISCO | SWP |
| CA3810001 | SAN FRANCISCO REGIONAL WATER SYSTEM | C | D4 | T5 | SAN FRANCISCO | SW |
| CA3890001 | SAN FRANCISCO WATER DEPARTMENT | NP | There are no treatment plants | SAN FRANCISCO | ||
| CA1910144 | SAN GABRIEL COUNTY WD | C | D3 | T2 | LOS ANGELES | GW |
| CA2600581 | SAN GABRIEL VALLEY FAMILY CENTER | NC | NR | There are no treatment plants | MONO | GW |
| CA1910189 | SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 | C | D3 | There are no treatment plants | LOS ANGELES | GWP |
| CA1910117 | SAN GABRIEL VALLEY WATER CO-MONTEBELLO 2 | C | D2 | There are no treatment plants | LOS ANGELES | SWP |
| CA1910039 | SAN GABRIEL VALLEY WATER CO.-EL MONTE | C | D5 | T5 | LOS ANGELES | GW |
| CA3610041 | SAN GABRIEL VALLEY WC - FONTANA | C | D5 | T5 | SAN BERNARDINO | SW |
| CA3690025 | SAN GABRIEL VALLEY WC - FONTANA RW | NP | There are no treatment plants | SAN BERNARDINO | ||
| CA1995021 | SAN GABRIEL VALLEY WC - RECYCLED WATER | NP | There are no treatment plants | LOS ANGELES | ||
| CA4100566 | SAN GREGORIO COMPANY | NC | D1 | T1 | SAN MATEO | GU |
| CA3310032 | SAN JACINTO, CITY OF | C | D3 | T1 | RIVERSIDE | GW |
| CA2701904 | SAN JERARDO COOP WS | C | D1 | TD | MONTEREY | GW |
| CA3910002 | SAN JOAQUIN COUNTY - COLONIAL HEIGHTS | C | D2 | There are no treatment plants | SAN JOAQUIN | SWP |
| CA3910010 | SAN JOAQUIN COUNTY - LINCOLN VILLAGE | C | D2 | There are no treatment plants | SAN JOAQUIN | SWP |
| CA3910009 | SAN JOAQUIN COUNTY - THORNTON | C | D1 | T2 | SAN JOAQUIN | GW |
| CA3910024 | SAN JOAQUIN COUNTY - WILKINSON MANOR | C | D1 | TD | SAN JOAQUIN | GW |
| CA3910017 | SAN JOAQUIN COUNTY-MOKELUMNE ACRES | C | D2 | TD | SAN JOAQUIN | GW |
| CA3910014 | SAN JOAQUIN COUNTY-RAYMUS VILLAGE | C | D2 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1500575 | SAN JOAQUIN ESTATES MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA3910302 | SAN JOAQUIN FAIR - 2ND DISTRICT | NC | D1 | TD | SAN JOAQUIN | SWP |
| CA3910018 | SAN JOAQUIN RIVER CLUB INC | C | D1 | TD | SAN JOAQUIN | GW |
| CA2400200 | SAN JOAQUIN VALLEY NATIONAL CEMETERY | NTNC | D1 | T2 | MERCED | SW |
| CA3901092 | SAN JOAQUIN WATER WORKS #2 | C | D1 | T2 | SAN JOAQUIN | GW |
| CA2000920 | SAN JOAQUIN WINE COMPANY | NTNC | D1 | T1 | MADERA | GW |
| CA1010034 | SAN JOAQUIN, CITY OF | C | D2 | T1 | FRESNO | GW |
| CA5500145 | SAN JOSE FAMILY CAMP | NC | NR | TD | TUOLUMNE | GW |
| CA4310011 | SAN JOSE WATER | C | D5 | T5 | SANTA CLARA | SW |
| CA4390008 | SAN JOSE WATER CO. RECYCLED WATER | NP | NR | There are no treatment plants | SANTA CLARA | |
| CA3010120 | SAN JUAN BASIN AUTHORITY | C | D3 | T3 | ORANGE | GW |
| CA3590002 | SAN JUAN BAUTISTA RW PROJECT | NP | There are no treatment plants | SAN BENITO | ||
| CA3510002 | SAN JUAN BAUTISTA, CITY OF | C | D2 | T1 | SAN BENITO | GW |
| CA3510008 | SAN JUAN OAKS MWC | C | D2 | T2 | SAN BENITO | GW |
| CA2700733 | SAN JUAN RD WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA3901215 | SAN JUAN VISTA | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA3410021 | SAN JUAN WATER DISTRICT | C | D4 | T5 | SACRAMENTO | SW |
| CA3500550 | SAN JUSTO MUTUAL WATER COMPANY | C | D1 | TD | SAN BENITO | GW |
| CA4200915 | SAN LORENZO SEMINARY | NC | NR | There are no treatment plants | SANTA BARBARA | GW |
| CA4410014 | SAN LORENZO VALLEY WATER DIST | C | D4 | T3 | SANTA CRUZ | SW |
| CA2701676 | SAN LUCAS COUNTY WATER DISTRICT | C | D1 | T1 | MONTEREY | GW |
| CA2400209 | SAN LUIS HILLS | C | D1 | T2 | MERCED | SW |
| CA4090008 | SAN LUIS OBISPO CSA NO. 18 | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA4010009 | SAN LUIS OBISPO WATER DEPARTMENT | C | D4 | T5 | SAN LUIS OBISPO | SW |
| CA2490002 | SAN LUIS WATER DISTRICT-FOX HILLS | NP | There are no treatment plants | MERCED | ||
| CA4200644 | SAN MARCOS CHRISTIAN CAMP | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4200580 | SAN MARCOS MUTUAL WATER COMPANY | C | D2 | T1 | SANTA BARBARA | GU |
| CA4300542 | SAN MARTIN COUNTY WATER DISTRICT | C | D1 | T1 | SANTA CLARA | GW |
| CA4300638 | SAN MARTIN FOOTHILLS WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA4300839 | SAN MARTIN LIONS CLUB | NC | D1 | TD | SANTA CLARA | GW |
| CA4100536 | SAN MATEO COUNTY MEMORIAL PARK | NC | D1 | T2 | SAN MATEO | SW |
| CA4010010 | SAN MIGUEL COMMUNITY SERVICES DISTRICT | C | D2 | TD | SAN LUIS OBISPO | GW |
| CA2700738 | SAN MIGUEL WS #01 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA2700740 | SAN MIGUEL WS #03 | C | D1 | There are no treatment plants | MONTEREY | GWP |
| CA2702073 | SAN MIGUEL WS #22 | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4010003 | SAN MIGUELITO MWC | C | D2 | T2 | SAN LUIS OBISPO | SWP |
| CA4000699 | SAN PASO TRUCK STOP | NC | NR | There are no treatment plants | SAN LUIS OBISPO | GW |
| CA3700968 | SAN PASQUAL ACADEMY | C | D1 | T1 | SAN DIEGO | GW |
| CA3710318 | SAN PASQUAL BATTLEFIELD STATE PARK | NC | NR | TD | SAN DIEGO | GW |
| CA2702609 | SAN SABA WINERY WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA4000568 | SAN SIMEON CSD | C | D1 | T1 | SAN LUIS OBISPO | GW |
| CA4090014 | SAN SIMEON RECYCLED WATER | NP | There are no treatment plants | SAN LUIS OBISPO | ||
| CA2702466 | SAN VICENTE MWC | C | D1 | There are no treatment plants | MONTEREY | GW |
| CA4210005 | SAN VICENTE WATER COMPANY | C | D1 | T1 | SANTA BARBARA | GW |
| CA3705073 | SAN YSIDRO HEALTH - MHFM | NTNC | D1 | T1 | SAN DIEGO | GW |
| CA3901378 | SAN-I-PAK INC | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA4300763 | SANBORN-SKYLINE COUNTY PARK | NC | NR | T1 | SANTA CLARA | GW |
| CA2702544 | SANCTUARY BIBLE CHURCH WS | NC | NR | There are no treatment plants | MONTEREY | GW |
| CA0202562 | SAND FLAT # 1 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202564 | SAND FLAT # 3 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202565 | SAND FLAT # 4 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0202566 | SAND FLAT # 5 | NC | NR | There are no treatment plants | ALPINE | GW |
| CA0901239 | SAND FLAT CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0707556 | SANDMOUND MUTUAL | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA1000260 | SANDY CREEK VILLAGE MHP | C | D1 | There are no treatment plants | FRESNO | GW |
| CA0707597 | SANDY POINT MOBILE HOME PARK | C | D1 | There are no treatment plants | CONTRA COSTA | GW |
| CA4200938 | SANFORD WINERY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4901466 | SANGIACOMO WINERY | NC | NR | T1 | SONOMA | GW |
| CA3310033 | SANTA ANA RIVER WATER COMPANY | C | D2 | TD | RIVERSIDE | GW |
| CA4200678 | SANTA ANITA MUTUAL WATER COMPANY | C | D1 | TD | SANTA BARBARA | GW |
| CA4200925 | SANTA BARBARA PISTACHIO COMPANY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA1995018 | SANTA CATALINA ISLAND COMPANY, INC. (REC | NP | There are no treatment plants | LOS ANGELES | ||
| CA5603117 | SANTA CLARA RESOURCES | NTNC | D1 | TD | VENTURA | GW |
| CA5601405 | SANTA CLARA SCHOOL | NTNC | D1 | TD | VENTURA | GW |
| CA4300833 | SANTA CLARA VALLEY MEDICAL CENTER | NTNC | D2 | There are no treatment plants | SANTA CLARA | SWP |
| CA4310027 | SANTA CLARA VALLEY WATER DISTRICT | C | D4 | T5 | SANTA CLARA | SW |
| CA4390007 | SANTA CLARA VALLEY WATER DISTRICT-SVAWPC | NP | There are no treatment plants | SANTA CLARA | ||
| CA1910240 | SANTA CLARITA VALLEY WATER AGENCY | C | D5 | T5 | LOS ANGELES | SW |
| CA4400725 | SANTA CRUZ COUNTY FAIRGROUNDS | NTNC | D1 | TD | SANTA CRUZ | GW |
| CA4400774 | SANTA CRUZ KOA CAMPGROUNDS | NC | NR | TD | SANTA CRUZ | GW |
| CA4400662 | SANTA CRUZ MOUNTAIN PURE WC | NC | NR | There are no treatment plants | SANTA CRUZ | GW |
| CA4490005 | SANTA CRUZ RECYCLED WATER PROGRAM | NP | There are no treatment plants | SANTA CRUZ | ||
| CA4400875 | SANTA CRUZ WALDORF SCHOOL | NTNC | D1 | T1 | SANTA CRUZ | GW |
| CA4410010 | SANTA CRUZ WATER DEPARTMENT | C | D5 | T5 | SANTA CRUZ | SW |
| CA3710023 | SANTA FE I.D. | C | D4 | T5 | SAN DIEGO | SW |
| CA1910245 | SANTA FE SPRINGS - CITY, WATER DEPT. | C | D4 | There are no treatment plants | LOS ANGELES | SWP |
| CA2702521 | SANTA LUCIA PRESERVE WS | C | D2 | T2 | MONTEREY | GW |
| CA3705072 | SANTA MARGARITA COUNTY PRESERVE | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4000656 | SANTA MARGARITA KOA | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA4000714 | SANTA MARGARITA RECREATION AREA | NC | NR | TD | SAN LUIS OBISPO | GW |
| CA3010101 | SANTA MARGARITA WATER DISTRICT | C | D5 | TD | ORANGE | SWP |
| CA3090006 | SANTA MARGARITA WATER DISTRICT RW | NP | N/A | There are no treatment plants | ORANGE | |
| CA3010030 | SANTA MARGARITA WATER DISTRICT-ID9 | C | D4 | TD | ORANGE | SWP |
| CA3090009 | SANTA MARGARITA WATER DISTRICT-ID9-RW | NP | N/A | There are no treatment plants | ORANGE | |
| CA1995004 | SANTA MONICA, CITY OF - RECLAMATION | NP | Missing treatment classification in SDWIS | LOS ANGELES | GW | |
| CA1910146 | SANTA MONICA-CITY, WATER DIVISION | C | D5 | T5 | LOS ANGELES | SWP |
| CA2410018 | SANTA NELLA COUNTY WATER DISTRICT | C | D2 | T3 | MERCED | SW |
| CA2490006 | SANTA NELLA RW | NP | There are no treatment plants | MERCED | ||
| CA4200822 | SANTA RITA WATER | C | D1 | TD | SANTA BARBARA | GW |
| CA4900878 | SANTA ROSA GOLF & COUNTRY CLUB | NTNC | D1 | T1 | SONOMA | GW |
| CA4901407 | SANTA ROSA LIQUOR AND DELI | NC | NR | TD | SONOMA | GW |
| CA4900796 | SANTA ROSA MOBILE ESTATES | C | D1 | T1 | SONOMA | GW |
| CA1690006 | SANTA ROSA RANCHERIA TACHI TRIBE | NP | There are no treatment plants | KINGS | ||
| CA3301860 | SANTA ROSA SPRINGS | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4910009 | SANTA ROSA, CITY OF | C | D5 | T1 | SONOMA | GW |
| CA4990004 | SANTA ROSA, CITY OF (RECYCLED WATER) | NP | NA | There are no treatment plants | SONOMA | |
| CA4300760 | SANTA TERESA MEADOWS WATER COMPANY | C | D1 | TD | SANTA CLARA | GW |
| CA4200619 | SANTA YNEZ RANCHO ESTATES | C | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA4210020 | SANTA YNEZ RIVER WATER CONS. DIST. ID#1 | C | D2 | TD | SANTA BARBARA | SWP |
| CA4200827 | SANTA YNEZ ROBLAR MOBILE HOME PARK | C | D1 | T1 | SANTA BARBARA | GW |
| CA3705077 | SANTA YSABEL NATURE CENTER | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA4000802 | SANTA YSABEL RANCH MWC | C | D1 | TD | SAN LUIS OBISPO | GW |
| CA3901216 | SANTOS RANCH PWS #5-CSA #35 | C | D1 | T2 | SAN JOAQUIN | GW |
| CA5403118 | SAPUTO DAIRY FOOD USA | NTNC | D1 | TD | TULARE | GW |
| CA2400055 | SAPUTO DAIRY FOODS USA, LLC | NTNC | D1 | TD | MERCED | GW |
| CA4901431 | SARALEE'S VINEYARD AND TASTING ROOM | NC | NR | T2 | SONOMA | GW |
| CA4300545 | SARATOGA HEIGHTS MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | SANTA CLARA | SWP |
| CA1700704 | SARATOGA SPRINGS RETREAT CENTER | NC | D1 | TD | LAKE | GW |
| CA4300766 | SARATOGA SPRINGS, INC. | NC | D1 | T2 | SANTA CLARA | SW |
| CA4600094 | SARDINE LAKE RESORT | NC | NR | T2 | SIERRA | SW |
| CA5602140 | SATICOY COUNTRY CLUB-CITY OF VENTURA | C | D1 | TD | VENTURA | GW |
| CA5400558 | SAUCELITO ELEMENTARY SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA2210939 | SAVAGES TRADING POST | NC | D1 | TD | MARIPOSA | GW |
| CA5602115 | SAVIERS ROAD MUTUAL WATER CO | C | D1 | There are no treatment plants | VENTURA | SWP |
| CA4700825 | SAWYER S BAR WORK CENTER | NC | NR | TD | SISKIYOU | GW |
| CA3610121 | SBDNO COUNTY SERVICE AREA 64 | C | D3 | TD | SAN BERNARDINO | GW |
| CA3610026 | SBDNO COUNTY SERVICE AREA 70 CEDAR GLEN | C | D2 | TD | SAN BERNARDINO | SWP |
| CA3610125 | SBDNO COUNTY SERVICE AREA 70J | C | D4 | TD | SAN BERNARDINO | GW |
| CA4901403 | SBRAGIA WINERY | NC | NR | T1 | SONOMA | GW |
| CA2000811 | SC CORNER (WATER ONLY) | NC | NR | There are no treatment plants | MADERA | GW |
| CA4300814 | SCC ANIMAL SHELTER/AIRPORT | NC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA1090020 | SCE BIGCREEKPOWERHOUSE#1 RECYCLED WATER | NP | There are no treatment plants | FRESNO | ||
| CA1400078 | SCE BISHOP CREEK PLANT 4 | C | D1 | There are no treatment plants | INYO | GW |
| CA1410801 | SCE BISHOP CREEK PLANT 5 | NTNC | D1 | There are no treatment plants | INYO | GW |
| CA1009111 | SCE/BIG CREEK POWERHOUSE #1 | C | D1 | T2 | FRESNO | SW |
| CA1000282 | SCE/CAMP EDISON-SHAVER | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2702539 | SCHEID VINEYARD WS | NTNC | D1 | There are no treatment plants | MONTEREY | GW |
| CA2400113 | SCHELBY SCHOOL | NTNC | D1 | There are no treatment plants | MERCED | GW |
| CA4901193 | SCHELLVILLE GRILL | NC | NR | TD | SONOMA | GW |
| CA0300102 | SCHMITZ WINES | NC | NR | There are no treatment plants | AMADOR | GW |
| CA1400046 | SCHOBER LANE CAMPGROUND | NC | NR | There are no treatment plants | INYO | GW |
| CA3701299 | SCHOEPE SCOUT RESERVATION AT LOST VALLEY | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA1000601 | SCHOOL HOUSE RESTAURANT AND TAVERN | NC | NR | T1 | FRESNO | GW |
| CA2801036 | SCHRAMSBERG WINERY | NTNC | D1 | Operator is not required | NAPA | GW |
| CA4901151 | SCHUG CELLARS | NC | NR | TD | SONOMA | GW |
| CA3902181 | SCHULTE ROAD WAREHOUSE 3, LLC WTR SYS | NTNC | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1502545 | SCHWEIKART WATER SYSTEM | C | D1 | There are no treatment plants | KERN | GW |
| CA5400778 | SCICON | NC | NR | T2 | TULARE | GW |
| CA0900120 | SCIOTS TRACT WATER SYSTEM | NC | D1 | T2 | EL DORADO | SW |
| CA5000179 | SCONZA CANDY COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA1210010 | SCOTIA CSD | C | D1 | T2 | HUMBOLDT | SW |
| CA4490001 | SCOTTS VALLEY RECYCLED WATER PROGRAM | NP | There are no treatment plants | SANTA CRUZ | ||
| CA4410013 | SCOTTS VALLEY WATER DISTRICT | C | D4 | T2 | SANTA CRUZ | GW |
| CA4901409 | SCRIBE WINERY | NC | NR | T1 | SONOMA | GW |
| CA3400474 | SCRIBNER BEND VINEYARD | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1990018 | SCVWA-GENERAL ORDER SERVICE AREA | NP | There are no treatment plants | LOS ANGELES | ||
| CA1990029 | SCVWA-VISTA CANYON FACTORY SERVICE AREA | NP | There are no treatment plants | LOS ANGELES | ||
| CA3410002 | SCWA - ARDEN PARK VISTA | C | D2 | T2 | SACRAMENTO | GW |
| CA3410029 | SCWA - LAGUNA/VINEYARD | C | D5 | T5 | SACRAMENTO | SW |
| CA4990008 | SCWA AIRPORT LARKFIELD WIKIUP | NP | NA | There are no treatment plants | SONOMA | |
| CA3410704 | SCWA MATHER-SUNRISE | C | D3 | T2 | SACRAMENTO | SWP |
| CA3790101 | SD ZOO SAFARI PARK- RECLAMATION | NP | There are no treatment plants | SAN DIEGO | ||
| CA3790117 | SDG&E | NP | There are no treatment plants | SAN DIEGO | ||
| CA4990022 | SEA RANCH NORTH SANITATION ZONE | NP | There are no treatment plants | SONOMA | ||
| CA4910007 | SEA RANCH WATER COMPANY,THE (PUC) | C | D2 | T3 | SONOMA | SW |
| CA2300621 | SEA ROCK INN | NC | D1 | T2 | MENDOCINO | SW |
| CA0800850 | SEA WEST RESTAURANT | NC | NR | TD | DEL NORTE | GW |
| CA2000938 | SEABOARD ENERGY CALIFORNIA, LLC | NC | D1 | TD | MADERA | GW |
| CA2300609 | SEAFAIR ROAD AND WATER COMPANY | C | D1 | T1 | MENDOCINO | GW |
| CA2300620 | SEAFOAM LODGE | NC | NR | TD | MENDOCINO | GW |
| CA3610854 | SEARLES VALLEY MINERALS OPERATIONS INC | C | D2 | T2 | SAN BERNARDINO | GW |
| CA4991080 | SEARS POINT RACEWAY RECLAMATION | NP | NA | There are no treatment plants | SONOMA | |
| CA2710018 | SEASIDE MUNICIPAL WATER SYSTEM | C | D2 | TD | MONTEREY | GW |
| CA1200588 | SEAWOOD ESTATES MUTUAL WATER COMPANY | C | D1 | T2 | HUMBOLDT | SW |
| CA4900925 | SEBASTIANI VINEYARDS | NTNC | D1 | TD | SONOMA | GW |
| CA4901436 | SEBASTOPOL CHARTER SCHOOL | NTNC | D1 | T2 | SONOMA | GW |
| CA4901313 | SEBASTOPOL VINEYARDS | NC | NR | T1 | SONOMA | GW |
| CA4910011 | SEBASTOPOL, CITY OF | C | D2 | T2 | SONOMA | GW |
| CA4300976 | SEED TESTING REAL ESTATE II LLC | NTNC | D1 | There are no treatment plants | SANTA CLARA | GW |
| CA1310013 | SEELEY CWD | C | D2 | T3 | IMPERIAL | SWP |
| CA4901266 | SEGHESIO FARMS | NTNC | D1 | TD | SONOMA | GW |
| CA2400342 | SELECT HARVEST PARTNERS #1, LP | NTNC | D1 | T2 | MERCED | GW |
| CA2400339 | SELECT HARVEST USA | NTNC | D1 | T3 | MERCED | GW |
| CA4800807 | SELF-SERVE PETROLEUM | NC | NR | TD | SOLANO | GW |
| CA1000545 | SELMA EXXON TIGER MART | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1000367 | SELMA HIGH SCHOOL | NTNC | D1 | There are no treatment plants | FRESNO | GW |
| CA1000635 | SELMA QUICK STOP | NC | NR | There are no treatment plants | FRESNO | GW |
| CA3200221 | SENDERO RANCH | NTNC | D1 | T1 | PLUMAS | GW |
| CA4901143 | SENECA FAMILY OF AGENCIES | NTNC | D1 | T1 | SONOMA | GW |
| CA5601117 | SENIOR CANYON MUTUAL WATER CO | C | D2 | T2 | VENTURA | SW |
| CA2400013 | SENSIENT NATURAL INGREDIENTS LLC | NTNC | D1 | T2 | MERCED | GW |
| CA1000583 | SEQUOIA BIBLE FELLOWSHIP | NTNC | D1 | T1 | FRESNO | GW |
| CA5401001 | SEQUOIA CIDER MILL | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400701 | SEQUOIA CREST MUTUAL WATER COMPANY | NC | D1 | There are no treatment plants | TULARE | GW |
| CA2801037 | SEQUOIA GROVE VINEYARDS | NTNC | D1 | Operator is not required | NAPA | GW |
| CA5400961 | SEQUOIA MEADOW CHRISTIAN CAMP | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400743 | SEQUOIA MOTEL | NC | NR | There are no treatment plants | TULARE | GW |
| CA5400629 | SEQUOIA RV RANCH | NC | NR | TD | TULARE | GW |
| CA5400709 | SEQUOIA UNION ELEMENTARY SCHOOL | NTNC | D1 | TD | TULARE | GW |
| CA5400644 | SEQUOIA VILLAGE INN | NC | D1 | T2 | TULARE | SW |
| CA3400155 | SEQUOIA WATER ASSOC | C | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA4901016 | SEQUOIA WATER COMPANY | NC | NR | TD | SONOMA | GW |
| CA0300091 | SERA FINA CELLARS | NC | NR | There are no treatment plants | AMADOR | GW |
| CA4900647 | SERENO DEL MAR WATER COMPANY (PUC) | C | D1 | T2 | SONOMA | SW |
| CA3010082 | SERRANO WATER DISTRICT | C | D2 | T3 | ORANGE | SW |
| CA3705059 | SET FREE MINISTRIES | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA5800888 | SEVEN MILE HOUSE | NC | NR | There are no treatment plants | YUBA | GW |
| CA3600360 | SEVEN OAKS MT RESORT MHP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA4400726 | SEVENTH DAY ADVENTIST CAMP | NC | D1 | There are no treatment plants | SANTA CRUZ | GW |
| CA5400550 | SEVILLE WATER COMPANY | C | D1 | TD | TULARE | GW |
| CA4190005 | SEWER AUTHORITY MIDCOASTSIDE RECYCLED | NP | There are no treatment plants | SAN MATEO | ||
| CA2190001 | SEWERAGE AGENCY OF SOUTHERN MARIN | NP | NA | There are no treatment plants | MARIN | |
| CA5301201 | SEYMOUR'S MUTUAL WATER SYSTEM | C | D1 | TD | TRINITY | GW |
| CA3890003 | SFO INTERNATIONAL AIRPORT - RW | NP | There are no treatment plants | SAN MATEO | ||
| CA3810011 | SFPUC CITY DISTRIBUTION DIVISION | C | D5 | TD | SAN FRANCISCO | SWP |
| CA0110018 | SFPUC-PLEASANTON WELLS | C | D1 | TD | ALAMEDA | GW |
| CA3900720 | SHADED TERRACE PWS | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA1900301 | SHADOW ACRES MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | LOS ANGELES | SWP |
| CA3301981 | SHADOW HILLS RV RESORT | NC | NR | There are no treatment plants | RIVERSIDE | GW |
| CA4700803 | SHADOW MOUNTAIN MHP | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA3601166 | SHADY COVE | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2901994 | SHADY CREEK OUTDOOR SCHOOL | NC | NR | There are no treatment plants | NEVADA | GW |
| CA3100040 | SHADY GLEN COMM WATER SYSTEM | C | D1 | T2 | PLACER | SW |
| CA5400529 | SHADY GROVE MOBILE HOME PARK, LLC | C | D1 | There are no treatment plants | TULARE | GW |
| CA2900511 | SHADY LAKE WATER ASSOCIATION | C | D1 | There are no treatment plants | NEVADA | GW |
| CA1000244 | SHADY LAKES MOBILE HOME PARK | C | D1 | TD | FRESNO | GW |
| CA3600404 | SHADY LANE RV CAMP | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA2000828 | SHADY OAKS MOBILE HOME PARK LLC | C | D1 | There are no treatment plants | MADERA | GW |
| CA3700858 | SHADY OAKS TRAILER RANCH | NC | NR | There are no treatment plants | SAN DIEGO | GW |
| CA3900755 | SHADY REST TRAILER COURT | C | D1 | There are no treatment plants | SAN JOAQUIN | GW |
| CA2800046 | SHADYBROOK ESTATES WINERY | NC | NR | There are no treatment plants | NAPA | GW |
| CA1800575 | SHAFFER ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | LASSEN | GW |
| CA4600062 | SHAFFER S HIGH SIERRA CAMP | NC | NR | There are no treatment plants | SIERRA | GW |
| CA1510019 | SHAFTER, CITY OF | C | D3 | T2 | KERN | GW |
| CA4900723 | SHAMROCK MOBILE HOME PARK | C | D1 | T1 | SONOMA | GW |
| CA1000592 | SHANT BHAVAN PUNJABI FUNERAL HOME | NC | NR | T1 | FRESNO | GW |
| CA3301879 | SHARONDALE MESA HOA | C | D1 | TD | RIVERSIDE | GW |
| CA4510013 | SHASTA C.S.D. | C | D2 | T3 | SHASTA | SW |
| CA4700627 | SHASTA CASCADE MOBILEHOME PARK | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4500248 | SHASTA CAVERNS | NC | NR | TD | SHASTA | GW |
| CA4500314 | SHASTA CO CSA # 13 ALPINE MEADOWS | C | D1 | There are no treatment plants | SHASTA | GW |
| CA4500313 | SHASTA CO CSA # 8 PALO CEDRO | C | D1 | TD | SHASTA | GW |
| CA4500015 | SHASTA CSA - CASTELLA, #3 | C | D1 | T2 | SHASTA | SW |
| CA4500028 | SHASTA CSA - CRAGVIEW, #23 | C | D1 | T2 | SHASTA | SW |
| CA4500317 | SHASTA CSA - FRENCH GULCH, #11 | C | D1 | T2 | SHASTA | SW |
| CA4510004 | SHASTA CSA - JONES VALLEY, #6 | C | D2 | T3 | SHASTA | SW |
| CA4500006 | SHASTA CSA - SUGARLOAF, #2 | C | D1 | T2 | SHASTA | SW |
| CA4500153 | SHASTA DISTRICT FAIR | NC | NR | TD | SHASTA | GW |
| CA4510009 | SHASTA FOREST VILLAGE M.W.C. | C | D1 | There are no treatment plants | SHASTA | GW |
| CA4700541 | SHASTA HORIZON MOBILE HOME PARK | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4500192 | SHASTA LAKE MOTEL | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500099 | SHASTA LAKE RV RESORT | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500293 | SHASTA MARINA AT PACKERS BAY | NC | NR | TD | SHASTA | GW |
| CA4700630 | SHASTA VIEW HEIGHTS OWNERS ASSOCIATION | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4500037 | SHASTA-SUSTAINABLE RESOURCES MANAGEMENT | NTNC | D1 | There are no treatment plants | SHASTA | GW |
| CA4700884 | SHASTINA MOBILE ESTATES | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA1010053 | SHAVER LAKE HEIGHTS MWC | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000069 | SHAVER LAKE HEIGHTS WATER ASSN | C | D1 | There are no treatment plants | FRESNO | GW |
| CA1000072 | SHAVER LAKE POINT #2 | NC | D1 | T2 | FRESNO | GW |
| CA0202513 | SHAY CREEK HOA | NC | NR | There are no treatment plants | ALPINE | GW |
| CA3610109 | SHEEP CREEK WATER COMPANY | C | D3 | TD | SAN BERNARDINO | GW |
| CA3400402 | SHELDON ACRES DEV CENTER | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA3400410 | SHELDON TRADING POST | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA2300517 | SHELL BUILDING | NC | NR | TD | MENDOCINO | GW |
| CA1907016 | SHEPHERD OF THE HILLS | NC | D1 | There are no treatment plants | LOS ANGELES | GW |
| CA1503680 | SHEPHERD OF THE HILLS - TEHACHAPI | NC | NR | There are no treatment plants | KERN | GW |
| CA1503558 | SHEPHERD OF THE MOUNTAINS LUTHERAN CHURC | NC | NR | There are no treatment plants | KERN | GWP |
| CA4200895 | SHEPHERD OF THE VALLEY | NC | D1 | There are no treatment plants | SANTA BARBARA | GW |
| CA3190004 | SHERIDAN WASTEWATER TREATMENT PLANT | NP | There are no treatment plants | PLACER | ||
| CA0500028 | SHERMAN ACRES MUTUAL WATER ASN | NC | NR | There are no treatment plants | CALAVERAS | GW |
| CA3400444 | SHERMAN LAKE MARINA | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA1000599 | SHERWOOD FOREST GOLF CLUB | NC | NR | TD | FRESNO | GW |
| CA1000247 | SHERWOOD FOREST MHP | C | D1 | TD | FRESNO | GW |
| CA5700774 | SHERWOOD HARBOR MARINA | NC | NR | There are no treatment plants | YOLO | GW |
| CA1900907 | SHERWOOD MOBILE HOME PARK | C | D1 | T1 | LOS ANGELES | GW |
| CA5000295 | SHILOH SCHOOL DISTRICT | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000409 | SHILOH-PARADISE BASEBALL FOR YOUTH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA4500221 | SHINGLETOWN PROFESSIONAL BLDG | NC | NR | There are no treatment plants | SHASTA | GW |
| CA4500343 | SHINGLETOWN STORE WATER SYSTEM | NC | D2 | There are no treatment plants | SHASTA | GW |
| CA5000175 | SHIVELY'S BAR & GRILL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5800909 | SHOEI FOODS (USA), INC. | NTNC | D1 | T1 | YUBA | GW |
| CA5800874 | SHOP & SAVE | NC | NR | There are no treatment plants | YUBA | GW |
| CA5400917 | SHOP N GO | NC | D1 | TD | TULARE | GW |
| CA1000544 | SHOP-N-QUICK #2 | NC | NR | There are no treatment plants | FRESNO | GW |
| CA2208034 | SHORE FUN R.V. PARK | NC | NR | There are no treatment plants | MARIPOSA | GW |
| CA2300545 | SHORELANDS ROAD & WATER COMPANY | C | D1 | TD | MENDOCINO | GW |
| CA2300645 | SHORELINE COTTAGES | NC | D1 | T1 | MENDOCINO | GW |
| CA2100577 | SHORELINE SCHOOL DIST: BUS GARAGE | NC | NR | TD | MARIN | GW |
| CA4810024 | SID - BLUE RIDGE OAKS | C | D1 | There are no treatment plants | SOLANO | SWP |
| CA4810011 | SID - ELMIRA | C | D1 | TD | SOLANO | GW |
| CA4810010 | SID - GIBSON CANYON | C | D1 | T3 | SOLANO | SW |
| CA4810026 | SID - PEABODY | C | D1 | There are no treatment plants | SOLANO | SWP |
| CA4810025 | SID - PLEASANT HILLS RANCH | C | D1 | T2 | SOLANO | SW |
| CA4810012 | SID - QUAIL CANYON | C | D1 | TD | SOLANO | GW |
| CA2000556 | SIDERMAN CAMP AND CONFERENCE CENTER | NC | NR | There are no treatment plants | MADERA | GW |
| CA1300686 | SIDEWINDER CHEVRON | NC | NR | There are no treatment plants | IMPERIAL | GW |
| CA1810700 | SIERRA ARMY DEPOT | NTNC | D2 | T2 | LASSEN | GW |
| CA1500341 | SIERRA BELLA MUTUAL WATER COMPANY | C | D1 | TD | KERN | GW |
| CA1500447 | SIERRA BREEZE MUTUAL WATER COMPANY | C | D1 | There are no treatment plants | KERN | GW |
| CA2600700 | SIERRA BUSINESS PARK OWNER'S ASSOCIATION | NC | NR | T1 | MONO | GW |
| CA1805005 | SIERRA CASCADE NURSERY | NTNC | NR | There are no treatment plants | LASSEN | GW |
| CA1010052 | SIERRA CEDARS CSD | C | D1 | T1 | FRESNO | GW |
| CA5401099 | SIERRA CHRISTIAN CAMP | NC | NR | There are no treatment plants | TULARE | GW |
| CA4600056 | SIERRA CITY WATER WORKS, INC. | C | D1 | There are no treatment plants | SIERRA | GW |
| CA4600019 | SIERRA CO. W.W.D #1 CALPINE | C | D1 | T1 | SIERRA | GW |
| CA4600009 | SIERRA CSA #5, SIERRA BROOKS | C | D1 | There are no treatment plants | SIERRA | GW |
| CA2600622 | SIERRA EAST HOA | C | D1 | There are no treatment plants | MONO | GW |
| CA1000525 | SIERRA ENDANGERED CAT HAVEN | NC | D1 | There are no treatment plants | FRESNO | GW |
| CA2900504 | SIERRA ENERGY #3 | NC | NR | T1 | NEVADA | GW |
| CA3400251 | SIERRA ENTERPRISE ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA2900548 | SIERRA ESTATES MUTUAL WATER COMPANY | C | D1 | T1 | NEVADA | GW |
| CA2900330 | SIERRA FAMILY MEDICAL CLINIC | NTNC | D1 | There are no treatment plants | NEVADA | GW |
| CA5103015 | SIERRA GOLD NURSERIES | NTNC | D1 | There are no treatment plants | SUTTER | GW |
| CA1400070 | SIERRA GRANDE ESTATES MUTUAL WATER CO. | C | D1 | There are no treatment plants | INYO | GW |
| CA1000280 | SIERRA HIGH SCHOOL | NTNC | D1 | TD | FRESNO | GW |
| CA1400007 | SIERRA HIGHLAND CSD | C | D1 | There are no treatment plants | INYO | GW |
| CA1000304 | SIERRA INN | NC | NR | There are no treatment plants | FRESNO | GW |
| CA5400940 | SIERRA KING HOMEOWNERS ASSN | C | D1 | TD | TULARE | GW |
| CA3110017 | SIERRA LAKES COUNTY WATER DIST | C | D2 | T3 | PLACER | SW |
| CA2000506 | SIERRA LINDA MUTUAL WATER CO | C | D1 | There are no treatment plants | MADERA | GW |
| CA5400747 | SIERRA LODGE | NC | NR | T2 | TULARE | SW |
| CA1000508 | SIERRA LUTHERAN CHURCH | NC | NR | There are no treatment plants | FRESNO | GW |
| CA1910148 | SIERRA MADRE-CITY, WATER DEPT. | C | D3 | T2 | LOS ANGELES | SWP |
| CA5400916 | SIERRA MASONIC WATER CO | NC | NR | There are no treatment plants | TULARE | GW |
| CA1502564 | SIERRA MEADOWS | C | D1 | There are no treatment plants | KERN | GW |
| CA0409183 | SIERRA MOON WATER COMPANY | C | D1 | TD | BUTTE | GW |
| CA5403110 | SIERRA MUTUAL WATER COMPANY | C | D1 | T2 | TULARE | GW |
| CA0409197 | SIERRA NEVADA BREWING CO. | NTNC | D1 | TD | BUTTE | GW |
| CA1400109 | SIERRA NORTH COMMUNITY SERVICE DISTRICT | C | D1 | There are no treatment plants | INYO | GW |
| CA5500171 | SIERRA OUTDOOR SCHOOL | NTNC | D1 | T1 | TUOLUMNE | GW |
| CA4500191 | SIERRA PACIFIC IND - ANDERSON | NTNC | D1 | TD | SHASTA | GW |
| CA5500360 | SIERRA PACIFIC INDUSTRIES | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5201057 | SIERRA PACIFIC INDUSTRIES - RED BLUFF MI | NTNC | D1 | TD | TEHAMA | GW |
| CA5201055 | SIERRA PACIFIC INDUSTRIES - RICHFIELD | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA5201143 | SIERRA PACIFIC INDUSTRIES - WINDOWS | NTNC | D1 | There are no treatment plants | TEHAMA | GW |
| CA3200141 | SIERRA PACIFIC INDUSTRIES QUINCY | NTNC | D1 | There are no treatment plants | PLUMAS | GW |
| CA5510016 | SIERRA PARK WATER COMPANY, INC. | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA0900651 | SIERRA PINES CAMP | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA2000966 | SIERRA PINES CHURCH | NC | NR | There are no treatment plants | MADERA | GW |
| CA0202522 | SIERRA PINES MOBILE HOME PARK | C | D1 | There are no treatment plants | ALPINE | GW |
| CA4600086 | SIERRA PINES RESORT | NC | NR | There are no treatment plants | SIERRA | GW |
| CA3100079 | SIERRA REACH MINISTRIES | NC | NR | TD | PLACER | GW |
| CA2000636 | SIERRA SKY RANCH WATER SYSTEM | NC | NR | There are no treatment plants | MADERA | GW |
| CA0900658 | SIERRA TAHOE GRANDVIEW | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900659 | SIERRA TAHOE MAIN LODGE | NTNC | D1 | T1 | EL DORADO | GW |
| CA0900664 | SIERRA TAHOE WEST BOWL | NC | D1 | There are no treatment plants | EL DORADO | GW |
| CA5500096 | SIERRA TWAIN HARTE MHP | C | D1 | TD | TUOLUMNE | GW |
| CA3200225 | SIERRA VALLEY PRESERVE | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3200171 | SIERRA VALLEY RV PARK | NC | D1 | T1 | PLUMAS | GW |
| CA5400711 | SIERRA VIEW JR ACADEMY | NTNC | D1 | TD | TULARE | GW |
| CA2000846 | SIERRA VIEW SCHOOL | NTNC | D1 | TD | MADERA | GW |
| CA5500353 | SIERRA VILLAGE MOBILE HOME PARK | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5500074 | SIERRA VILLAGE MUTUAL WATER CO | C | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA5400964 | SIERRA VISTA ASSOCIATION | C | D1 | There are no treatment plants | TULARE | GW |
| CA1502194 | SIERRA VISTA RESTAURANT | NC | NR | There are no treatment plants | KERN | GW |
| CA5500242 | SIERRA WALDORF SCHOOL | NTNC | D1 | There are no treatment plants | TUOLUMNE | GW |
| CA4600017 | SIERRA WATER RESOURCES - SIERRA CITY | C | D1 | TD | SIERRA | GW |
| CA3107318 | SIERRA WOODS LODGE | NC | NR | There are no treatment plants | PLACER | GW |
| CA4600018 | SIERRAVILLE P.U.D. | C | D1 | TD | SIERRA | GW |
| CA5602109 | SIESTA MOBILE HOME PARK | C | D1 | TD | VENTURA | GW |
| CA5601119 | SIETE ROBLES MUTUAL WATER CO | C | D1 | T1 | VENTURA | SWP |
| CA1910149 | SIGNAL HILL - CITY, WATER DEPT. | C | D4 | T2 | LOS ANGELES | SWP |
| CA4901477 | SIKH GURDWARA SANTA ROSA | NC | D1 | T2 | SONOMA | GW |
| CA5000512 | SIKH TEMPLE MODESTO-CERES | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA3301622 | SILENT VALLEY CLUB | NTNC | D1 | TD | RIVERSIDE | GW |
| CA2800103 | SILENUS VINTNERS | NC | NR | Operator is not required | NAPA | GW |
| CA3400379 | SILVA'S SHELDON INN | NC | NR | There are no treatment plants | SACRAMENTO | GW |
| CA5401071 | SILVER CITY WATER CO. | NC | D1 | T2 | TULARE | SW |
| CA2000829 | SILVER CREEK | NC | NR | There are no treatment plants | MADERA | GW |
| CA3103666 | SILVER CREEK SUMMER HOME TRACT | NC | NR | There are no treatment plants | PLACER | GW |
| CA0405003 | SILVER DOLLAR FAIRGROUNDS | NTNC | D1 | TD | BUTTE | GW |
| CA0300032 | SILVER LAKE CAMPGROUND | NC | NR | There are no treatment plants | AMADOR | GW |
| CA2801038 | SILVER OAK WINE CELLARS | NTNC | D1 | Operator is not required | NAPA | GW |
| CA4901374 | SILVER OAK WINE CELLARS LLC | NTNC | NR | T1 | SONOMA | GW |
| CA2000830 | SILVER SPUR CENTER/GALLERY ROW | NC | NR | T1 | MADERA | GW |
| CA2801041 | SILVERADO VINEYARDS | NTNC | D1 | Operator is not required | NAPA | GW |
| CA3400452 | SILVERADO WATER SYSTEM | NTNC | D1 | There are no treatment plants | SACRAMENTO | GW |
| CA0901243 | SILVERFORK CAMPGROUND | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900301 | SILVERFORK MUTUAL WATER | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900304 | SILVERFORK SCHOOL | NTNC | D1 | There are no treatment plants | EL DORADO | GW |
| CA0900103 | SILVERFORK STORE WATER SYSTEM | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA0900303 | SILVERFORK WATER ASSOCIATION | NC | NR | There are no treatment plants | EL DORADO | GW |
| CA4500110 | SILVERTHORN RESORT | NC | NR | There are no treatment plants | SHASTA | GW |
| CA2290003 | SILVERTIP RESORT VILLAGE WWTF | NP | There are no treatment plants | MARIPOSA | ||
| CA3200060 | SILVERTIP SPRINGS WATER SYSTEM | NC | NR | There are no treatment plants | PLUMAS | GW |
| CA3601020 | SILVERWOOD JAPANESE RESTAURANT SUSHI & G | NC | NR | There are no treatment plants | SAN BERNARDINO | GW |
| CA5601120 | SISAR MUTUAL WATER CO | C | D1 | TD | VENTURA | GW |
| CA4700528 | SISKIYOU CO. ROLLING HILLS MWC | C | D1 | There are no treatment plants | SISKIYOU | GW |
| CA4700521 | SISKIYOU CO.SERVICE AREA #5/CARRICK | C | D1 | There are no treatment plants | SISKIYOU | GW | <