Date:08-14-2026STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910036SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - ELACOUNTY:LOS ANGELES 
SOURCE NO.:023SOURCE NAME:WELL 38-02SOURCE 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_023_023 SECONDARY/GP 1994 AGGRESSIVE INDEX 11.100 AGGR 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1928 ALKALINITY, BICARBONATE 140.000 3.000 MG/L 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1919 CALCIUM 53.000 1.000 MG/L 03-24-2026 36 2029/03
CA1910036_023_023 SECONDARY/GP 1929 ALKALINITY, CARBONATE < 3.000 MG/L 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1017 CHLORIDE 58.000 1.000 MG/L 500 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1905 COLOR < 5.000 UNITS 15 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1022 COPPER, FREE 23.000 20.000 UG/L 1000 50 03-24-2026 36 2029/03
CA1910036_023_023 SECONDARY/GP 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1915 HARDNESS, TOTAL (AS CACO3) 170.000 0.410 MG/L 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1028 IRON 42.000 10.000 UG/L 300 06-23-2026 36 2029/06
CA1910036_023_023 SECONDARY/GP 1031 MAGNESIUM 8.900 1.000 MG/L 03-24-2026 36 2029/03
CA1910036_023_023 SECONDARY/GP 1032 MANGANESE 710.000 2.000 UG/L 50 06-23-2026 1 2026/07 DUE NOW
CA1910036_023_023 SECONDARY/GP 1920 ODOR < 1.000 TON 3 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP C253 PH, FIELD 6.800 pH 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1050 SILVER < 10.000 UG/L 100 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1052 SODIUM 56.000 1.000 MG/L 09-23-2025 36 2028/09
CA1910036_023_023 SECONDARY/GP 1064 CONDUCTIVITY @ 25 C UMHOS/CM 650.000 5.000 UMHO/CM 1600 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1055 SULFATE 83.000 1.000 MG/L 500 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1930 TDS 370.000 5.000 MG/L 1000 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 0100 TURBIDITY 0.790 0.300 NTU 5 06-18-2025 36 2028/06
CA1910036_023_023 SECONDARY/GP 1095 ZINC < 50.000 UG/L 5000 03-24-2026 36 2029/03
CA1910036_023_023 INORGANIC 1002 ALUMINUM < 50.000 UG/L 1000 50 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1005 ARSENIC 7.700 2.000 UG/L 10 2 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1010 BARIUM 60.000 50.000 UG/L 1000 100 03-24-2026 36 2029/03
CA1910036_023_023 INORGANIC 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1015 CADMIUM < 1.000 UG/L 5 1 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1020 CHROMIUM < 10.000 UG/L 50 10 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1080 CHROMIUM, HEX < 0.020 UG/L 10 .1 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1024 CYANIDE < 5.000 UG/L 150 100 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1025 FLUORIDE 0.300 0.100 MG/L 2 .1 06-23-2026 36 2029/06
CA1910036_023_023 INORGANIC 1035 MERCURY < 1.000 UG/L 2 1 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1036 NICKEL < 10.000 UG/L 100 10 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1039 PERCHLORATE < 0.500 UG/L 6 1 06-23-2026 12 2027/06
CA1910036_023_023 INORGANIC 1045 SELENIUM < 2.000 UG/L 50 5 06-18-2025 36 2028/06
CA1910036_023_023 INORGANIC 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 06-18-2025 36 2028/06
CA1910036_023_023 NITRATE/NITRITE 1040 NITRATE 0.800 0.400 MG/L 10 .4 06-23-2026 12 2027/06
CA1910036_023_023 NITRATE/NITRITE 1038 NITRATE-NITRITE 0.900 0.400 MG/L 10 .4 06-23-2026 36 2029/06
CA1910036_023_023 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 06-23-2026 36 2029/06
CA1910036_023_023 RADIOLOGICAL 4010 COMBINED RADIUM (-226 & -228) < 0.370 PCI/L 5 06-23-2026 108 2035/06
CA1910036_023_023 RADIOLOGICAL 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 12-21-2020 108 2029/12
CA1910036_023_023 REGULATED VOC 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2983 1,2-DICHLOROPROPANE < 0.250 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2990 BENZENE < 0.500 UG/L 1 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2996 STYRENE < 0.500 UG/L 100 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2991 TOLUENE < 0.500 UG/L 150 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2976 VINYL CHLORIDE < 0.200 UG/L .5 .5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED VOC 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 03-24-2026 12 2027/03
CA1910036_023_023 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 0.005 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2063 2,3,7,8-TCDD < 0.005 NG/L 0.03 0.005 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2110 2,4,5-TP < 1.000 UG/L 50 1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2105 2,4-D < 10.000 UG/L 70 10 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2050 ATRAZINE < 0.500 UG/L 1 .5 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2625 BENTAZON < 2.000 UG/L 18 2 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2046 CARBOFURAN < 5.000 UG/L 18 5 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2959 CHLORDANE < 0.100 UG/L .1 .1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2031 DALAPON < 10.000 UG/L 200 10 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2041 DINOSEB < 2.000 UG/L 7 2 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2032 DIQUAT < 4.000 UG/L 20 4 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2033 ENDOTHALL < 45.000 UG/L 100 45 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2005 ENDRIN < 0.100 UG/L 2 .1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2034 GLYPHOSATE < 25.000 UG/L 700 25 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2065 HEPTACHLOR < 0.010 UG/L .01 .01 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2274 HEXACHLOROBENZENE < 0.500 UG/L 1 .5 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2042 HEXACHLOROCYCLOPENTADIENE < 1.000 UG/L 50 1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2010 BHC-GAMMA < 0.200 UG/L .2 .2 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2015 METHOXYCHLOR < 10.000 UG/L 30 10 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2626 MOLINATE < 2.000 UG/L 20 2 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2036 OXAMYL < 20.000 UG/L 50 20 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2040 PICLORAM < 1.000 UG/L 500 1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2037 SIMAZINE < 1.000 UG/L 4 1 09-10-2024 33 2027/06
CA1910036_023_023 REGULATED SOC 2020 TOXAPHENE < 1.000 UG/L 3 1 09-10-2024 33 2027/06
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.