Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:2810003SYSTEM NAME:NAPA, CITY OFCOUNTY:NAPA 
SOURCE NO.:004SOURCE NAME:NBR WTR RAW - NORTH BAY AQUEDUCTSOURCE CLASS:CLSMSTATUS:A



Click to hide / show columns: PS Codes | Group Name | Analyte Number | Analyte Name | Detected Level |Less Than | RL | Unit | MCL | DLR | Last Sampled | Frequency | Next Due | Notes

PS Codes Group Name Analyte Number Analyte Name Results Unit MCL DLR Last Sampled Frequency Next Due Notes
Detected Level Less Than RL
CA2810003_004_004 SECONDARY/GP-202407 1928 ALKALINITY, BICARBONATE 92.800 1.000 MG/L 07-05-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202504 1919 CALCIUM 67.000 1.000 MG/L 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202401 1929 ALKALINITY, CARBONATE < 2.000 MG/L 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 SECONDARY/GP-202407 1017 CHLORIDE 10.000 1.000 MG/L 500 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202504 1905 COLOR 181.000 2.000 UNITS 15 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202401 1022 COPPER, FREE < 50.000 UG/L 1000 50 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 SECONDARY/GP-202407 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202504 1915 HARDNESS, TOTAL (AS CACO3) 168.000 1.000 MG/L 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202401 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 SECONDARY/GP-202407 1028 IRON < 10.000 UG/L 300 100 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202407 1031 MAGNESIUM 22.000 0.100 MG/L 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202407 1032 MANGANESE 2.500 2.000 UG/L 50 20 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202504 1920 ODOR 3.000 1.000 TON 3 1 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202504 1925 PH 7.550 pH 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202401 1050 SILVER < 0.500 UG/L 100 10 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 SECONDARY/GP-202407 1052 SODIUM 16.000 1.000 MG/L 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202504 1064 CONDUCTIVITY @ 25 C UMHOS/CM 579.000 UMHO/CM 1600 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202407 1055 SULFATE 60.000 5.000 MG/L 500 .5 07-12-2023 12 2024/07
CA2810003_004_004 SECONDARY/GP-202401 1930 TDS 140.000 20.000 MG/L 1000 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 SECONDARY/GP-202504 0100 TURBIDITY 7.500 0.010 NTU 5 .1 04-09-2024 12 2025/04
CA2810003_004_004 SECONDARY/GP-202401 1095 ZINC < 20.000 UG/L 5000 50 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 INORGANIC-202407 1002 ALUMINUM < 50.000 UG/L 1000 50 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1005 ARSENIC < 2.000 UG/L 10 2 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202004 1094 ASBESTOS < 0.200 MFL 7 .2 04-12-2011 108 2020/04 DUE NOW
CA2810003_004_004 INORGANIC-202407 1010 BARIUM < 100.000 UG/L 1000 100 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1015 CADMIUM < 1.000 UG/L 5 1 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1020 CHROMIUM < 10.000 UG/L 50 10 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202504 1025 FLUORIDE 0.116 0.100 MG/L 2 .1 04-09-2024 12 2025/04
CA2810003_004_004 INORGANIC-202401 1035 MERCURY < 1.000 UG/L 2 1 01-10-2023 12 2024/01 DUE NOW
CA2810003_004_004 INORGANIC-202407 1036 NICKEL < 10.000 UG/L 100 10 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202307 1039 PERCHLORATE < 2.000 UG/L 6 2 07-06-2022 12 2023/07 DUE NOW
CA2810003_004_004 INORGANIC-202407 1045 SELENIUM < 5.000 UG/L 50 5 07-12-2023 12 2024/07
CA2810003_004_004 INORGANIC-202407 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-12-2023 12 2024/07
CA2810003_004_004 NITRATE/NITRITE-202407 1040 NITRATE < 0.100 MG/L 10 .4 07-12-2023 12 2024/07
CA2810003_004_004 NITRATE/NITRITE-202607 1041 NITRITE < 0.030 MG/L 1 .4 07-12-2023 36 2026/07
CA2810003_004_004 RADIOLOGICAL-203007 4109 GROSS ALPHA PARTICLE ACTIVITY < 2.000 PCI/L 15 3 07-07-2021 108 2030/07
CA2810003_004_004 RADIOLOGICAL-203007 4020 RADIUM-226 < 0.400 PCI/L 1 07-07-2021 108 2030/07
CA2810003_004_004 RADIOLOGICAL-203007 4030 RADIUM-228 < 0.900 PCI/L 1 07-07-2021 108 2030/07
CA2810003_004_004 RADIOLOGICAL-203007 4006 COMBINED URANIUM < 1.000 PCI/L 20 1 07-07-2021 108 2030/07
CA2810003_004_004 REGULATED VOC-202701 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2990 BENZENE < 0.500 UG/L 1 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2996 STYRENE < 0.500 UG/L 100 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2991 TOLUENE < 0.500 UG/L 150 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED VOC-202701 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 01-09-2024 36 2027/01
CA2810003_004_004 REGULATED SOC-202607 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 07-12-2023 36 2026/07
CA2810003_004_004 REGULATED SOC-203107 2110 2,4,5-TP < 1.000 UG/L 50 1 07-06-2022 108 2031/07
CA2810003_004_004 REGULATED SOC-203107 2105 2,4-D < 1.000 UG/L 70 10 07-06-2022 108 2031/07
CA2810003_004_004 REGULATED SOC-202507 2050 ATRAZINE < 0.500 UG/L 1 .5 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2046 CARBOFURAN < 2.000 UG/L 18 5 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2031 DALAPON < 1.000 UG/L 200 10 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2041 DINOSEB < 1.000 UG/L 7 2 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202607 2032 DIQUAT < 4.000 UG/L 20 4 07-12-2023 36 2026/07
CA2810003_004_004 REGULATED SOC-202607 2033 ENDOTHALL < 45.000 UG/L 100 45 07-12-2023 36 2026/07
CA2810003_004_004 REGULATED SOC-203107 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 07-06-2022 108 2031/07
CA2810003_004_004 REGULATED SOC-203111 2065 HEPTACHLOR < 0.010 UG/L .01 .01 11-21-2022 108 2031/11
CA2810003_004_004 REGULATED SOC-203111 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 11-21-2022 108 2031/11
CA2810003_004_004 REGULATED SOC-203111 2010 BHC-GAMMA < 0.200 UG/L .2 .2 11-21-2022 108 2031/11
CA2810003_004_004 REGULATED SOC-203111 2015 METHOXYCHLOR < 10.000 UG/L 30 10 11-21-2022 108 2031/11
CA2810003_004_004 REGULATED SOC-202507 2036 OXAMYL < 2.000 UG/L 50 20 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202507 2040 PICLORAM < 1.000 UG/L 500 1 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-202511 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 11-21-2022 36 2025/11
CA2810003_004_004 REGULATED SOC-202507 2037 SIMAZINE < 1.000 UG/L 4 1 07-06-2022 36 2025/07
CA2810003_004_004 REGULATED SOC-203111 2020 TOXAPHENE < 1.000 UG/L 3 1 11-21-2022 108 2031/11
CA2810003_004_004 GENERAL NON CHAP 15-202405 1927 ALKALINITY, TOTAL 168.000 1.000 MG/L 04-09-2024 1 2024/05 DUE NOW
PS Codes Group Name Analyte Number Analyte Name Detected Level Less Than RL Unit MCL DLR Last Sampled Frequency Next Due Notes

RL – Reporting Level means the level to which the laboratory reported the presence of an analyte. For radionuclides, Reporting Level is the MDA95.

DLR – Detection Limit for purposes of Reporting (DLR) means the designated minimum level at or above which any analytical finding of a contaminant in drinking water resulting from monitoring required under Chapter 15 of Title 22 shall be reported to the State Board (California Code of Regulations Section § 64400.34)

For addtional definitions, please refer to our data dictionary.