Date:05-14-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:3910005SYSTEM NAME:MANTECA, CITY OFCOUNTY:SAN JOAQUIN 
SOURCE NO.:016SOURCE NAME:WELL NO. 16 - RAWSOURCE CLASS:CLGASTATUS: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
CA3910005_016_016 SECONDARY/GP-202405 1994 AGGRESSIVE INDEX 12.000 AGGR 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202508 1928 ALKALINITY, BICARBONATE 150.000 3.000 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202508 1919 CALCIUM 37.000 0.100 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202508 1929 ALKALINITY, CARBONATE < 3.000 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202508 1017 CHLORIDE 12.000 1.000 MG/L 500 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202405 1905 COLOR < UNITS 15 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1915 HARDNESS, TOTAL (AS CACO3) 210.000 MG/L 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202508 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202405 1028 IRON < 100.000 UG/L 300 100 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202508 1031 MAGNESIUM 10.000 0.100 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202405 1032 MANGANESE < 20.000 UG/L 50 20 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1920 ODOR 2.800 1.000 TON 3 1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1925 PH 8.000 pH 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1050 SILVER < 10.000 UG/L 100 10 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202508 1052 SODIUM 27.000 1.000 MG/L 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202412 1064 CONDUCTIVITY @ 25 C UMHOS/CM 360.000 1.000 UMHO/CM 1600 12-13-2021 36 2024/12
CA3910005_016_016 SECONDARY/GP-202508 1055 SULFATE 17.000 0.500 MG/L 500 .5 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202508 1930 TDS 260.000 5.000 MG/L 1000 08-23-2022 36 2025/08
CA3910005_016_016 SECONDARY/GP-202405 0100 TURBIDITY 0.140 0.100 NTU 5 .1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 SECONDARY/GP-202405 1095 ZINC < 50.000 UG/L 5000 50 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1002 ALUMINUM < 50.000 UG/L 1000 50 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202404 1005 ARSENIC 11.200 2.000 UG/L 10 2 03-25-2024 1 2024/04 DUE NOW
CA3910005_016_016 INORGANIC-202405 1010 BARIUM 140.000 100.000 UG/L 1000 100 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1015 CADMIUM < 1.000 UG/L 5 1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1020 CHROMIUM < 10.000 UG/L 50 10 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1025 FLUORIDE < 0.100 MG/L 2 .1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1035 MERCURY < 1.000 UG/L 2 1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1036 NICKEL < 10.000 UG/L 100 10 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202412 1039 PERCHLORATE < 2.000 UG/L 6 2 12-13-2021 36 2024/12
CA3910005_016_016 INORGANIC-202405 1045 SELENIUM < 5.000 UG/L 50 5 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 INORGANIC-202405 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 NITRATE/NITRITE-202408 1040 NITRATE 2.800 0.230 MG/L 10 .4 08-29-2023 12 2024/08
CA3910005_016_016 NITRATE/NITRITE-202405 1041 NITRITE < 0.400 MG/L 1 .4 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 RADIOLOGICAL-202507 4109 GROSS ALPHA PARTICLE ACTIVITY 4.490 +/- 1.180 1.100 PCI/L 15 3 07-09-2019 72 2025/07
CA3910005_016_016 REGULATED VOC-202607 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2990 BENZENE < 0.500 UG/L 1 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2996 STYRENE < 0.500 UG/L 100 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2991 TOLUENE < 0.500 UG/L 150 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED VOC-202607 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-11-2023 36 2026/07
CA3910005_016_016 REGULATED SOC-202610 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 10-09-2023 36 2026/10
CA3910005_016_016 REGULATED SOC-202705 2050 ATRAZINE < 0.500 UG/L 1 .5 05-08-2018 108 2027/05
CA3910005_016_016 REGULATED SOC-202405 2931 1,2-DIBROMO-3-CHLOROPROPANE < UG/L .2 .01 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 REGULATED SOC-202405 2946 ETHYLENE DIBROMIDE < UG/L .05 .02 05-11-2021 36 2024/05 DUE NOW
CA3910005_016_016 REGULATED SOC-202705 2037 SIMAZINE < 1.000 UG/L 4 1 05-08-2018 108 2027/05
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.