Date:11-03-2024STATE 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-202708 1994 AGGRESSIVE INDEX 11.700 AGGR 08-06-2024 36 2027/08
CA1910036_004_004 SECONDARY/GP-202708 C253 PH, FIELD 7.200 pH 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1002 ALUMINUM < 50.000 UG/L 1000 50 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1005 ARSENIC < 2.000 UG/L 10 2 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1010 BARIUM 93.000 50.000 UG/L 1000 100 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1015 CADMIUM < 1.000 UG/L 5 1 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1020 CHROMIUM < 10.000 UG/L 50 10 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1024 CYANIDE < 5.000 UG/L 150 100 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1025 FLUORIDE 0.330 0.100 MG/L 2 .1 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1035 MERCURY < 0.200 UG/L 2 1 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1036 NICKEL < 10.000 UG/L 100 10 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202411 1039 PERCHLORATE 2.200 1.000 UG/L 6 1 10-09-2024 1 2024/11 DUE NOW
CA1910036_004_004 INORGANIC-202708 1045 SELENIUM < 2.000 UG/L 50 5 08-06-2024 36 2027/08
CA1910036_004_004 INORGANIC-202708 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 08-06-2024 36 2027/08
CA1910036_004_004 NITRATE/NITRITE-202508 1040 NITRATE 3.200 0.230 MG/L 10 .4 08-06-2024 12 2025/08
CA1910036_004_004 NITRATE/NITRITE-202708 1041 NITRITE < 0.050 MG/L 1 .4 08-14-2024 36 2027/08
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-202508 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2977 1,1-DICHLOROETHYLENE 0.520 0.500 UG/L 6 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2990 BENZENE < 0.500 UG/L 1 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2996 STYRENE < 0.500 UG/L 100 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2987 TETRACHLOROETHYLENE 0.870 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2991 TOLUENE < 0.500 UG/L 150 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2984 TRICHLOROETHYLENE 1.200 0.500 UG/L 5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2904 TRICHLOROTRIFLUOROETHANE < 2.000 UG/L 1200 10 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED VOC-202508 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 08-06-2024 12 2025/08
CA1910036_004_004 REGULATED SOC-202704 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 07-22-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2050 ATRAZINE < 0.500 UG/L 1 .5 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2959 CHLORDANE < 0.100 UG/L .1 .1 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 07-23-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 07-23-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2015 METHOXYCHLOR < 10.000 UG/L 30 10 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 07-16-2024 33 2027/04
CA1910036_004_004 REGULATED SOC-202704 2037 SIMAZINE < 1.000 UG/L 4 1 07-16-2024 33 2027/04
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.