Date:05-05-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910036SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - ELACOUNTY:LOS ANGELES 
SOURCE NO.:004SOURCE NAME:WELL 10-03SOURCE CLASS:LGLNSTATUS: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
CA1910036_004_004 SECONDARY/GP-202408 1994 AGGRESSIVE INDEX 12.000 0.100 AGGR 08-23-2021 36 2024/08
CA1910036_004_004 GENERAL NON CHAP 15-201901 C253 PH, FIELD 7.500 pH 01-11-2016 36 2019/01 DUE NOW
CA1910036_004_004 INORGANIC-202408 1002 ALUMINUM < 20.000 UG/L 1000 50 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1005 ARSENIC < 1.000 UG/L 10 2 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1010 BARIUM 96.000 2.000 UG/L 1000 100 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1015 CADMIUM < 0.500 UG/L 5 1 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1020 CHROMIUM 2.100 1.000 UG/L 50 10 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1024 CYANIDE < 25.000 UG/L 150 100 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1025 FLUORIDE 0.310 0.050 MG/L 2 .1 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1035 MERCURY < 0.200 UG/L 2 1 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1036 NICKEL < 5.000 UG/L 100 10 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202405 1039 PERCHLORATE 2.700 1.000 UG/L 6 1 04-02-2024 1 2024/05 DUE NOW
CA1910036_004_004 INORGANIC-202408 1045 SELENIUM < 5.000 UG/L 50 5 08-23-2021 36 2024/08
CA1910036_004_004 INORGANIC-202408 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 08-23-2021 36 2024/08
CA1910036_004_004 NITRATE/NITRITE-202501 1040 NITRATE 3.600 0.400 MG/L 10 .4 01-23-2024 12 2025/01
CA1910036_004_004 NITRATE/NITRITE-202408 1041 NITRITE < 0.250 MG/L 1 .4 08-23-2021 36 2024/08
CA1910036_004_004 RADIOLOGICAL-202201 4109 GROSS ALPHA PARTICLE ACTIVITY 5.500 +/- 0.240 1.400 PCI/L 15 3 01-11-2016 72 2022/01 DUE NOW
CA1910036_004_004 RADIOLOGICAL-202501 4020 RADIUM-226 < 0.400 PCI/L 1 01-11-2016 108 2025/01
CA1910036_004_004 RADIOLOGICAL-202501 4030 RADIUM-228 < 0.900 PCI/L 1 01-11-2016 108 2025/01
CA1910036_004_004 RADIOLOGICAL-202201 4006 COMBINED URANIUM < 1.000 PCI/L 20 1 01-11-2016 72 2022/01 DUE NOW
CA1910036_004_004 REGULATED VOC-202503 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2977 1,1-DICHLOROETHYLENE 0.600 0.500 UG/L 6 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2990 BENZENE < 0.500 UG/L 1 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2996 STYRENE < 0.500 UG/L 100 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2987 TETRACHLOROETHYLENE 0.900 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2991 TOLUENE < 0.500 UG/L 150 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2984 TRICHLOROETHYLENE 0.900 0.500 UG/L 5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED VOC-202503 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 03-05-2024 12 2025/03
CA1910036_004_004 REGULATED SOC-202608 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 11-14-2023 33 2026/08
CA1910036_004_004 REGULATED SOC-202701 2050 ATRAZINE < 0.500 UG/L 1 .5 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2959 CHLORDANE < 0.100 UG/L .1 .1 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 04-08-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 04-08-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2015 METHOXYCHLOR < 10.000 UG/L 30 10 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 04-16-2024 33 2027/01
CA1910036_004_004 REGULATED SOC-202701 2037 SIMAZINE < 1.000 UG/L 4 1 04-16-2024 33 2027/01
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.