Date:05-17-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5010010SYSTEM NAME:MODESTO, CITY OFCOUNTY:STANISLAUS 
SOURCE NO.:129SOURCE NAME:WELL 259SOURCE 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
CA5010010_129_129 SECONDARY/GP-202405 1928 ALKALINITY, BICARBONATE 130.000 MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1919 CALCIUM 22.000 MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1929 ALKALINITY, CARBONATE < MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1017 CHLORIDE 12.000 MG/L 500 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1905 COLOR < UNITS 15 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1915 HARDNESS, TOTAL (AS CACO3) 89.000 MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1028 IRON < 100.000 UG/L 300 100 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1031 MAGNESIUM 8.300 MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1032 MANGANESE < 20.000 UG/L 50 20 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1920 ODOR < 1.000 TON 3 1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1925 PH 7.910 pH 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1050 SILVER < 10.000 UG/L 100 10 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1052 SODIUM 22.000 MG/L 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1064 CONDUCTIVITY @ 25 C UMHOS/CM 280.000 UMHO/CM 1600 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1055 SULFATE 9.000 0.500 MG/L 500 .5 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1930 TDS 180.000 MG/L 1000 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 0100 TURBIDITY < 0.100 NTU 5 .1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 SECONDARY/GP-202405 1095 ZINC < 50.000 UG/L 5000 50 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1002 ALUMINUM < 50.000 UG/L 1000 50 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1005 ARSENIC 3.800 2.000 UG/L 10 2 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1010 BARIUM < 100.000 UG/L 1000 100 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1015 CADMIUM < 1.000 UG/L 5 1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1020 CHROMIUM < 10.000 UG/L 50 10 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1025 FLUORIDE < 0.100 MG/L 2 .1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1035 MERCURY < 1.000 UG/L 2 1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1036 NICKEL < 10.000 UG/L 100 10 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1039 PERCHLORATE < 4.000 UG/L 6 4 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1045 SELENIUM < 5.000 UG/L 50 5 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 INORGANIC-202405 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-12-2021 36 2024/05 DUE NOW
CA5010010_129_129 NITRATE/NITRITE-202502 1040 NITRATE 5.200 0.400 MG/L 10 .4 02-07-2024 12 2025/02
CA5010010_129_129 NITRATE/NITRITE-202509 1041 NITRITE < 0.400 MG/L 1 .4 09-29-2022 36 2025/09
CA5010010_129_129 RADIOLOGICAL-203206 4109 GROSS ALPHA PARTICLE ACTIVITY 5.820 +/- 1.560 1.200 PCI/L 15 3 06-13-2023 108 2032/06
CA5010010_129_129 REGULATED VOC-202703 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2977 1,1-DICHLOROETHYLENE < 0.300 UG/L 6 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2990 BENZENE < 0.500 UG/L 1 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2996 STYRENE < 0.500 UG/L 100 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2991 TOLUENE < 0.500 UG/L 150 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED VOC-202703 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 03-13-2024 36 2027/03
CA5010010_129_129 REGULATED SOC-202702 2414 1,2,3-TRICHLOROPROPANE < 0.001 UG/L 0.005 02-07-2024 36 2027/02
CA5010010_129_129 REGULATED SOC-202812 2050 ATRAZINE < 0.500 UG/L 1 .5 12-11-2019 108 2028/12
CA5010010_129_129 REGULATED SOC-202412 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 12-14-2023 12 2024/12
CA5010010_129_129 REGULATED SOC-202612 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 12-14-2023 36 2026/12
CA5010010_129_129 REGULATED SOC-202812 2037 SIMAZINE < 1.000 UG/L 4 1 12-11-2019 108 2028/12
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.