Date:05-06-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910033SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - DOMINGUEZCOUNTY:LOS ANGELES 
SOURCE NO.:004SOURCE NAME:WELL 215-01SOURCE CLASS:LGLISTATUS: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
CA1910033_004_004 SECONDARY/GP-202601 1928 ALKALINITY, BICARBONATE 140.000 2.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1919 CALCIUM 18.000 1.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1929 ALKALINITY, CARBONATE 2.900 2.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1017 CHLORIDE 23.000 0.500 MG/L 500 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1905 COLOR 10.000 2.000 UNITS 15 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1022 COPPER, FREE < 50.000 UG/L 1000 50 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1915 HARDNESS, TOTAL (AS CACO3) 59.000 3.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1028 IRON < 10.000 UG/L 300 100 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1031 MAGNESIUM 3.500 0.100 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1032 MANGANESE 2.200 2.000 UG/L 50 20 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1920 ODOR 1.000 1.000 TON 3 1 01-03-2023 36 2026/01
CA1910033_004_004 GENERAL NON CHAP 15-202601 C253 PH, FIELD 7.360 pH 01-24-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1050 SILVER < 0.500 UG/L 100 10 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1052 SODIUM 55.000 1.000 MG/L 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1064 CONDUCTIVITY @ 25 C UMHOS/CM 360.000 2.000 UMHO/CM 1600 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1055 SULFATE 10.000 0.250 MG/L 500 .5 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1930 TDS 220.000 20.000 MG/L 1000 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 0100 TURBIDITY 0.100 0.100 NTU 5 .1 01-03-2023 36 2026/01
CA1910033_004_004 SECONDARY/GP-202601 1095 ZINC < 20.000 UG/L 5000 50 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1002 ALUMINUM < 50.000 UG/L 1000 50 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1005 ARSENIC < 2.000 UG/L 10 2 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1010 BARIUM < 100.000 UG/L 1000 100 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1015 CADMIUM < 1.000 UG/L 5 1 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1020 CHROMIUM < 10.000 UG/L 50 10 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1024 CYANIDE < 100.000 UG/L 150 100 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1025 FLUORIDE 0.310 0.100 MG/L 2 .1 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1035 MERCURY < 1.000 UG/L 2 1 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1036 NICKEL < 10.000 UG/L 100 10 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1039 PERCHLORATE < 2.000 UG/L 6 2 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1045 SELENIUM < 5.000 UG/L 50 5 01-03-2023 36 2026/01
CA1910033_004_004 INORGANIC-202601 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 01-03-2023 36 2026/01
CA1910033_004_004 NITRATE/NITRITE-202501 1040 NITRATE < 0.400 MG/L 10 .4 01-24-2024 12 2025/01
CA1910033_004_004 NITRATE/NITRITE-202601 1041 NITRITE < 0.400 MG/L 1 .4 01-03-2023 36 2026/01
CA1910033_004_004 RADIOLOGICAL-203201 4109 GROSS ALPHA PARTICLE ACTIVITY < 2.290 PCI/L 15 3 01-24-2023 108 2032/01
CA1910033_004_004 REGULATED VOC-202501 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2990 BENZENE < 0.500 UG/L 1 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2996 STYRENE < 0.500 UG/L 100 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2991 TOLUENE < 0.500 UG/L 150 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED VOC-202501 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 01-24-2024 12 2025/01
CA1910033_004_004 REGULATED SOC-202505 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 08-16-2022 33 2025/05
CA1910033_004_004 REGULATED SOC-202405 2039 DI(2-ETHYLHEXYL) PHTHALATE < 0.600 UG/L 4 3 08-17-2021 33 2024/05 DUE NOW
CA1910033_004_004 REGULATED SOC-202405 2326 PENTACHLOROPHENOL < 0.040 UG/L 1 .2 08-03-2021 33 2024/05 DUE NOW
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.