Date:05-15-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:0710001SYSTEM NAME:CITY OF ANTIOCHCOUNTY:CONTRA COSTA 
SOURCE NO.:001SOURCE NAME:ANTIOCH WTP TREATED EFFLUENTSOURCE CLASS:OTHRSTATUS: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
CA0710001_001_001 SECONDARY/GP-202412 1994 AGGRESSIVE INDEX 12.000 0.100 AGGR 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1928 ALKALINITY, BICARBONATE 64.000 2.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1919 CALCIUM 14.000 1.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1929 ALKALINITY, CARBONATE < 2.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1017 CHLORIDE 61.000 1.000 MG/L 500 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1905 COLOR < 2.000 UNITS 15 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1022 COPPER, FREE < 50.000 UG/L 1000 50 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1915 HARDNESS, TOTAL (AS CACO3) 70.000 3.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1028 IRON < 10.000 UG/L 300 100 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1031 MAGNESIUM 8.400 0.100 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1032 MANGANESE < 2.000 UG/L 50 20 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1920 ODOR < 1.000 TON 3 1 12-21-2023 12 2024/12
CA0710001_001_001 GENERAL NON CHAP 15-null C253 PH, FIELD pH 12 DUE NOW
CA0710001_001_001 SECONDARY/GP-202412 1925 PH 8.300 pH 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1050 SILVER < 0.500 UG/L 100 10 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1052 SODIUM 48.000 1.000 MG/L 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1064 CONDUCTIVITY @ 25 C UMHOS/CM 420.000 2.000 UMHO/CM 1600 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1055 SULFATE 39.000 0.250 MG/L 500 .5 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1930 TDS 230.000 20.000 MG/L 1000 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 0100 TURBIDITY 0.100 0.100 NTU 5 .1 12-21-2023 12 2024/12
CA0710001_001_001 SECONDARY/GP-202412 1095 ZINC < 20.000 UG/L 5000 50 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1002 ALUMINUM < 50.000 UG/L 1000 50 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1005 ARSENIC < 2.000 UG/L 10 2 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202806 1094 ASBESTOS < 0.200 MFL 7 .2 06-06-2019 108 2028/06
CA0710001_001_001 INORGANIC-202412 1010 BARIUM < 100.000 UG/L 1000 100 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1015 CADMIUM < 1.000 UG/L 5 1 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1020 CHROMIUM < 10.000 UG/L 50 10 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1024 CYANIDE < 100.000 UG/L 150 100 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1025 FLUORIDE 0.730 0.100 MG/L 2 .1 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1030 LEAD < 5.000 UG/L 5 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1035 MERCURY < 1.000 UG/L 2 1 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1036 NICKEL < 10.000 UG/L 100 10 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1039 PERCHLORATE < 2.000 UG/L 6 2 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1045 SELENIUM < 5.000 UG/L 50 5 12-21-2023 12 2024/12
CA0710001_001_001 INORGANIC-202412 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 12-21-2023 12 2024/12
CA0710001_001_001 NITRATE/NITRITE-202406 1040 NITRATE 0.870 0.400 MG/L 10 .4 03-14-2024 3 2024/06
CA0710001_001_001 NITRATE/NITRITE-202703 1041 NITRITE < 0.400 MG/L 1 .4 03-14-2024 36 2027/03
CA0710001_001_001 RADIOLOGICAL-202503 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 03-08-2016 108 2025/03
CA0710001_001_001 REGULATED VOC-202412 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2990 BENZENE < 0.500 UG/L 1 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2996 STYRENE < 0.500 UG/L 100 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2991 TOLUENE < 0.500 UG/L 150 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 12-21-2023 12 2024/12
CA0710001_001_001 REGULATED VOC-202412 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 12-21-2023 12 2024/12
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.