Drinking Water Division
Return Links
Water
System Search
Water Systems
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 |
| CA5000258 | 4937 BECKWITH WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000082 | 4N MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000573 | 5033 PENTECOST | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000588 | AT&T WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000395 | BASSO BRIDGE FISHING/BOATING ACCESS | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000347 | BECKLEY LYONS WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000551 | BEL PASSI BASEBALL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000462 | BEST WESTERN-ORCHARD INN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000435 | BLOOMINGCAMP WATER SYSTEM | NC | NR | T1 | STANISLAUS | GW |
| CA5000335 | BRETHREN HERITAGE SCHOOL, INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000286 | BRONCO WINERY | NTNC | D1 | T3 | STANISLAUS | GW |
| 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 |
| CA5000509 | BURCHELL NURSERY, INC | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000527 | CALIFORNIA NUT COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000586 | CALIFORNIA TRANSPLANTS LLC | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000060 | CASA DE AMIGOS MANUFACTURED HOUSING COMM | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000076 | CATFISH CAMP | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000590 | CEBRO FROZEN FOODS (EH) | NTNC | D1 | There are no treatment plants | STANISLAUS | 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 | D3 | T3 | STANISLAUS | SWP |
| CA5000535 | CHARITY WAY WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000101 | CHATOM SCHOOL (EH) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000482 | CHEMURGIC AGRICULTURAL CHEMICALS, INC. | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| 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 |
| CA5090013 | CITY OF NEWMAN - RECYCLED | NP | There are no treatment plants | STANISLAUS | ||
| CA5010013 | CITY OF NEWMAN-WATER DEPARTMENT | C | D3 | TD | STANISLAUS | GW |
| CA5000272 | CITY OF OAKDALE -KERR PARK | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5090019 | CITY OF TURLOCK - RECLAMATION | NP | There are no treatment plants | STANISLAUS | ||
| CA5010006 | CITY OF WATERFORD | C | D2 | T2 | STANISLAUS | GW |
| CA5000033 | COBLES CORNER | C | D1 | There are no treatment plants | STANISLAUS | 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 |
| CA5000080 | COUNTRY WESTERN MOBILE HOME PARK | C | D1 | T2 | STANISLAUS | GW |
| CA5000427 | COVANTA STANISLAUS WASTE ENERGY FACILITY | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5000516 | COVENANT GROVE CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000005 | CROWS LANDING COMM SVC DISTRICT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000599 | DARLING INGREDIENTS TURLOCK | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000099 | DEL RIO EAST HOA WATER SYSTEM | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5010021 | DENAIR COMMUNITY SERVICES DISTRICT | C | D2 | There are no treatment plants | STANISLAUS | GW |
| CA5000134 | DEPARTMENT OF TRANSPORTATION | NC | D1 | TD | STANISLAUS | GW |
| CA5000465 | DUARTE NURSERY INC WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000574 | EASTIN | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000563 | ELKS LODGE 1282 | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000261 | EMPIRE SPORTSMEN'S/CASINO ROYALE | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000473 | EXCELL CENTER | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000382 | FARMERS' DEN /MARKET | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000110 | FEE WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000158 | FILBIN LAND & CATTLE CO | NC | D1 | There are no treatment plants | STANISLAUS | 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 |
| CA5000579 | FOSTER FARMS #5 | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000481 | FOSTER FARMS-ELLENWOOD HATCHERY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000166 | FOX GROVE FISHING ACCESS | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000243 | FRANK RAINES PARK OHV | NC | D1 | T2 | STANISLAUS | GU |
| CA5000530 | FRAZIER NUT FARMS, INC. | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000555 | FRESH POINT (PIRANHA PRODUCE) | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5000414 | FULL GOSPEL ASSEMBLY | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000439 | GOLDEN ARCO | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000498 | GOLDEN STATE PFT PROPERTIES LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000532 | GRACE COMMUNITY CHRISTIAN CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000273 | GRATTON SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000384 | GREENLAW MODESTO INVESTORS LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000568 | GREGORI HIGH SCHOOL | NTNC | D1 | TD | STANISLAUS | GW |
| CA5000400 | GRIZZLY ROCK CAFE | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000580 | GROVER LANDSCAPE WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000596 | GROWERS DIRECT NUT COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000507 | GURUDWARA GURU NANAK SAHIB | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000213 | HAMLET MOTEL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000133 | HART- RANSOM UNION SCHOOL & DISTRICT | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5010007 | HILLSVIEW HOMES | C | D1 | TD | STANISLAUS | 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 |
| CA5010008 | HUGHSON, CITY OF | C | D2 | T2 | STANISLAUS | GW |
| CA5000487 | J & J FARM FRESH PRODUCE & BAKERY | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000493 | JEHOVAH'S WITNESS SIERRA VISTA CONG | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010044 | JENNINGS WWTP | NTNC | D1 | TD | STANISLAUS | 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 |
| CA5000547 | KEYES 76 (WATER SYSTEM) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010009 | KEYES COMMUNITY SERVICES DIST. | C | D2 | T2 | STANISLAUS | 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 |
| 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 |
| 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 |
| CA5000239 | LA GRANGE PARK-OHV | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000117 | LAKEWOOD MEMORIAL PARK & FUNERAL HOME | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000595 | LANDER VETERINARY CLINIC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000048 | LAZY B MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000426 | LIBERTY BAPTIST CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000141 | LIBITZKY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000136 | LOG CABIN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000049 | LONE PINE MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000562 | LOS INDIOS WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000061 | MARTIN'S MOBILE HOME COURT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000041 | MAZE BLVD MOBILEHOME PARK | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000411 | MCHENRY BUSINESS PARK | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000561 | MCHENRY GOLF CENTER | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000584 | MESA ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000592 | MID VALLEY AG | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5000600 | MID VALLEY NUT CO | NTNC | D1 | There are no treatment plants | STANISLAUS | 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 |
| CA5000603 | MONTE VISTA FARMING | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000389 | MONTEREY PARK TRACT CSD | C | D1 | TD | STANISLAUS | GWP |
| CA5000548 | MONTPELIER ORCHARDS (WATER) | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000054 | MORNINGSIDE MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000490 | MOUNTAIN VIEW CHATOM RECREATION | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000255 | MOUNTAIN VIEW ELEMENTARY SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000072 | MULBERRY MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000556 | NATURAL REMEDIES CONSULTING (NRC) | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000480 | NEW HOPE CHURCH OF THE NAZARENE | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000346 | NINO'S PLACE WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000189 | NMIP FIRE & WATER SYSTEM, LLC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000237 | NORTH OAKS MUTUAL WATER CO | C | D1 | There are no treatment plants | STANISLAUS | 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 |
| CA5000263 | OASIS INVESTMENTS | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000525 | OASIS MARKET | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000015 | OID #22 - WILLIAMS TRACT | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000016 | OID #41 - MOUNTAIN VIEW | 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 |
| CA5000055 | OLIVE LANE MOBILEHOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000457 | ONE STOP WS | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000298 | ORANGE BLOSSOM RECREATION AREA | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000402 | OUR LADY OF ASSUMPTION CHURCH | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000274 | PARADISE SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000017 | PARK HEIGHTS MUTUAL WATER CO | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5010017 | PATTERSON, CITY OF | C | D4 | TD | STANISLAUS | GW |
| CA5000536 | PENTECOST PROPERTIES WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000581 | PIONEER EQUINE HOSPITAL WATER SYSTEM | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000454 | PURINA MILLS INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000440 | RAINBOW FARMS | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000284 | RAINBOW SPORTS COMPLEX | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000467 | RAM NAAM MANDALI CHURCH OF MODESTO | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000499 | RATTO BROS, INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000593 | RBVON | NTNC | D1 | T2 | STANISLAUS | GW |
| CA5000502 | RESENDIZ FRUIT BARN | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000483 | RIVER OAK GRACE-WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000501 | RIVER OAKS/KINGDOM HALL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000447 | RIVER ROAD PLAZA | NTNC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000211 | RIVERBANK LRA | NTNC | D1 | TD | STANISLAUS | GW |
| CA5010018 | RIVERBANK, CITY OF | C | D3 | There are no treatment plants | STANISLAUS | GW |
| CA5000019 | RIVERDALE PARK TRACT CSD | C | D1 | TD | STANISLAUS | GW |
| CA5000090 | RIVERVIEW MOBILE HOME ESTATES | C | D1 | There are no treatment plants | STANISLAUS | 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 |
| 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 | ||
| CA5000179 | SCONZA CANDY COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000177 | SHADY LAWN FARM (SUMMER CAMP) | NC | NR | There are no treatment plants | STANISLAUS | 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 |
| CA5000175 | SHIVELY'S BAR & GRILL | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000512 | SIKH TEMPLE MODESTO-CERES | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000290 | SMART STOP FOOD MART (EH) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010040 | SOUTH SAN JOAQUIN IRRIGATION DISTRICT | C | D4 | T5 | STANISLAUS | SW |
| CA5010043 | STANISLAUS REGIONAL WATER AUTHORITY | C | D4 | T5 | STANISLAUS | SW |
| CA5000249 | STANISLAUS UNION SCHOOL DIST | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000565 | STERLING INDUSTRIAL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000372 | STORER TRANSPORTATION | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000474 | STRATOS WAY WATER COMPANY, INC | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000095 | SUNRISE VILLAGE MHP | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000383 | TAQUERIA RANCHO ALEGRE | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000494 | TDS CALIFORNIA | NTNC | D1 | T1 | STANISLAUS | GW |
| CA5000154 | THE FRUIT YARD RESTAURANT | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000478 | THE MORNING STAR COMPANY | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000010 | TID/ LA GRANGE WATER SYSTEM | C | D1 | T2 | STANISLAUS | SW |
| CA5000443 | TRIANGLE TRUCK STOP (WATER) | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000067 | TULLY MOBILE ESTATES | C | D1 | T2 | STANISLAUS | GW |
| CA5000578 | TURLOCK SPORTSMAN'S CLUB | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010300 | TURLOCK STATE RECREATION AREA | NC | D1 | TD | STANISLAUS | GW |
| CA5010019 | TURLOCK, CITY OF | C | D4 | T2 | STANISLAUS | SWP |
| CA5000071 | TWIN CYPRESS MOBILE HOME PARK | C | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000277 | VALLEY HOME SCHOOL PIONEER | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000132 | VALLEY HOME SCHOOL TEXAS | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000332 | VFW POST 5059 WATER SYSTEM | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000557 | VILLAGE FOOD MART WATER SYSTEM | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5010026 | WATERFORD - HICKMAN | C | D1 | T2 | STANISLAUS | GW |
| CA5000571 | WATERFORD SPORTSMEN'S CLUB | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5010042 | WATERFORD-RIVER POINTE | C | D1 | T1 | STANISLAUS | GW |
| CA5000529 | WEST COAST SAND & GRAVEL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5090039 | WESTERN HILLS WATER DISTRICT/DIABLO GRAN | NP | There are no treatment plants | STANISLAUS | ||
| CA5010039 | WESTERN HILLS WATER DISTRICT/DIABLO GRAN | C | D3 | T3 | STANISLAUS | SW |
| CA5000408 | WESTLEY CSD | C | D1 | There are no treatment plants | STANISLAUS | GWP |
| CA5000577 | WESTLEY PROPERTY LLC | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000446 | WHISKEY RIVER SALOON | NC | NR | There are no treatment plants | STANISLAUS | GW |
| CA5000404 | WOOD COLONY CHRISTIAN SCHOOL | NTNC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000165 | WOODWARD RESERVOIR WATER SYSTEM | NC | D1 | There are no treatment plants | STANISLAUS | GW |
| CA5000606 | ZANSCO | NC | D1 | There are no treatment plants | STANISLAUS | GW |