Date:05-30-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910134SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - HERM/REDOCOUNTY:LOS ANGELES 
SOURCE NO.:005SOURCE NAME:WELL 22-01SOURCE CLASS:LGLJSTATUS: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
CA1910134_005_005 SECONDARY/GP-202406 1928 ALKALINITY, BICARBONATE 230.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1919 CALCIUM 110.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1929 ALKALINITY, CARBONATE < 2.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202704 1017 CHLORIDE 320.000 5.000 MG/L 500 04-16-2024 36 2027/04
CA1910134_005_005 SECONDARY/GP-202406 1905 COLOR < 3.000 UNITS 15 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202511 1022 COPPER, FREE 4.200 1.000 UG/L 1000 50 11-08-2022 36 2025/11
CA1910134_005_005 SECONDARY/GP-202406 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1915 HARDNESS, TOTAL (AS CACO3) 400.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1028 IRON 51.000 10.000 UG/L 300 05-15-2024 1 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1031 MAGNESIUM 31.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1032 MANGANESE 11.000 2.000 UG/L 50 05-15-2024 1 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1920 ODOR < 1.000 TON 3 1 06-08-2021 36 2024/06
CA1910134_005_005 GENERAL NON CHAP 15-202704 C253 PH, FIELD 6.410 pH 04-16-2024 36 2027/04
CA1910134_005_005 SECONDARY/GP-202406 1050 SILVER < 10.000 UG/L 100 10 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202406 1052 SODIUM 140.000 MG/L 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202704 1064 CONDUCTIVITY @ 25 C UMHOS/CM 1700.000 2.000 UMHO/CM 1600 04-16-2024 36 2027/04
CA1910134_005_005 SECONDARY/GP-202406 1055 SULFATE 190.000 0.500 MG/L 500 .5 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202705 1930 TDS 1000.000 20.000 MG/L 1000 05-21-2024 36 2027/05
CA1910134_005_005 SECONDARY/GP-202406 0100 TURBIDITY 0.300 0.100 NTU 5 .1 06-08-2021 36 2024/06
CA1910134_005_005 SECONDARY/GP-202511 1095 ZINC 3.300 1.000 UG/L 5000 50 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1002 ALUMINUM < 50.000 UG/L 1000 50 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1005 ARSENIC 1.300 1.000 UG/L 10 2 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202406 1010 BARIUM 140.000 100.000 UG/L 1000 100 06-08-2021 36 2024/06
CA1910134_005_005 INORGANIC-202511 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1015 CADMIUM < 1.000 UG/L 5 1 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1020 CHROMIUM 2.200 1.000 UG/L 50 10 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202406 1024 CYANIDE < 100.000 UG/L 150 100 06-08-2021 36 2024/06
CA1910134_005_005 INORGANIC-202406 1025 FLUORIDE 0.300 0.100 MG/L 2 .1 06-08-2021 36 2024/06
CA1910134_005_005 INORGANIC-202406 1035 MERCURY < 1.000 UG/L 2 1 06-08-2021 36 2024/06
CA1910134_005_005 INORGANIC-202511 1036 NICKEL 1.500 1.000 UG/L 100 10 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202406 1039 PERCHLORATE < 4.000 UG/L 6 4 06-08-2021 36 2024/06
CA1910134_005_005 INORGANIC-202511 1045 SELENIUM 12.100 1.000 UG/L 50 5 11-08-2022 36 2025/11
CA1910134_005_005 INORGANIC-202511 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 11-08-2022 36 2025/11
CA1910134_005_005 NITRATE/NITRITE-202406 1040 NITRATE 0.550 0.230 MG/L 10 .4 06-14-2023 12 2024/06
CA1910134_005_005 NITRATE/NITRITE-202406 1041 NITRITE < 0.400 MG/L 1 .4 06-08-2021 36 2024/06
CA1910134_005_005 RADIOLOGICAL-202901 4109 GROSS ALPHA PARTICLE ACTIVITY 3.830 +/- 1.240 1.300 PCI/L 15 3 01-31-2023 72 2029/01
CA1910134_005_005 RADIOLOGICAL-203201 4020 RADIUM-226 < 0.045 PCI/L 1 01-31-2023 108 2032/01
CA1910134_005_005 RADIOLOGICAL-203201 4030 RADIUM-228 < 0.303 PCI/L 1 01-31-2023 108 2032/01
CA1910134_005_005 RADIOLOGICAL-202901 4006 COMBINED URANIUM 4.800 +/- 0.000 1.000 PCI/L 20 1 01-31-2023 72 2029/01
CA1910134_005_005 REGULATED VOC-202406 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2990 BENZENE < 0.500 UG/L 1 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2996 STYRENE < 0.500 UG/L 100 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2991 TOLUENE < 0.500 UG/L 150 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED VOC-202406 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 06-21-2023 12 2024/06
CA1910134_005_005 REGULATED SOC-202606 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 09-06-2023 33 2026/06
CA1910134_005_005 REGULATED SOC-202605 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 08-16-2023 33 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.