Date:05-02-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910010SYSTEM NAME:CALIFORNIA WATER SERVICE CO.-LANCASTERCOUNTY:LOS ANGELES 
SOURCE NO.:001SOURCE NAME:WELL 01-01SOURCE CLASS:LGSFSTATUS: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
CA1910010_001_001 SECONDARY/GP-202605 1928 ALKALINITY, BICARBONATE 130.000 3.000 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1919 CALCIUM 18.000 0.100 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1929 ALKALINITY, CARBONATE < 3.000 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1017 CHLORIDE 39.000 1.000 MG/L 500 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1905 COLOR < 5.000 UNITS 15 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1022 COPPER, FREE < 5.000 UG/L 1000 50 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1915 HARDNESS, TOTAL (AS CACO3) 61.000 0.410 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1028 IRON < 30.000 UG/L 300 100 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1031 MAGNESIUM 4.100 0.100 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1032 MANGANESE < 10.000 UG/L 50 20 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1920 ODOR < 1.000 TON 3 1 05-08-2023 36 2026/05
CA1910010_001_001 GENERAL NON CHAP 15-202605 C253 PH, FIELD 7.200 pH 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1050 SILVER < 10.000 UG/L 100 10 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1052 SODIUM 72.000 1.000 MG/L 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1064 CONDUCTIVITY @ 25 C UMHOS/CM 470.000 1.000 UMHO/CM 1600 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1055 SULFATE 47.000 1.000 MG/L 500 .5 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1930 TDS 280.000 5.000 MG/L 1000 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 0100 TURBIDITY < 0.100 NTU 5 .1 05-08-2023 36 2026/05
CA1910010_001_001 SECONDARY/GP-202605 1095 ZINC < 50.000 UG/L 5000 50 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1002 ALUMINUM < 50.000 UG/L 1000 50 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1005 ARSENIC 3.700 2.000 UG/L 10 2 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-203107 1094 ASBESTOS < 0.200 MFL 7 .2 07-21-2022 108 2031/07
CA1910010_001_001 INORGANIC-202605 1010 BARIUM < 50.000 UG/L 1000 100 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1015 CADMIUM < 1.000 UG/L 5 1 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1020 CHROMIUM < 10.000 UG/L 50 10 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1024 CYANIDE < 5.000 UG/L 150 100 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1025 FLUORIDE 0.520 0.100 MG/L 2 .1 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1035 MERCURY < 0.200 UG/L 2 1 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1036 NICKEL < 10.000 UG/L 100 10 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202405 1039 PERCHLORATE < 2.000 UG/L 6 2 05-08-2023 12 2024/05 DUE NOW
CA1910010_001_001 INORGANIC-202605 1045 SELENIUM < 2.000 UG/L 50 5 05-08-2023 36 2026/05
CA1910010_001_001 INORGANIC-202605 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-08-2023 36 2026/05
CA1910010_001_001 NITRATE/NITRITE-202405 1040 NITRATE 1.100 0.230 MG/L 10 .4 05-08-2023 12 2024/05 DUE NOW
CA1910010_001_001 NITRATE/NITRITE-202605 1041 NITRITE < 0.050 MG/L 1 .4 05-08-2023 36 2026/05
CA1910010_001_001 RADIOLOGICAL-203205 4109 GROSS ALPHA PARTICLE ACTIVITY < 2.820 PCI/L 15 3 05-08-2023 108 2032/05
CA1910010_001_001 RADIOLOGICAL-202305 4006 COMBINED URANIUM 0.764 +/- 0.000 1.000 PCI/L 20 1 05-06-2014 108 2023/05 DUE NOW
CA1910010_001_001 REGULATED VOC-202507 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2990 BENZENE < 0.500 UG/L 1 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2996 STYRENE < 0.500 UG/L 100 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2991 TOLUENE < 0.500 UG/L 150 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED VOC-202507 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED SOC-202507 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 07-19-2022 36 2025/07
CA1910010_001_001 REGULATED SOC-202605 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 05-08-2023 36 2026/05
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.