Date:12-13-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910134SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - HERM/REDOCOUNTY:LOS ANGELES 
SOURCE NO.:007SOURCE NAME:WELL 30-01 - STANDBYSOURCE CLASS:SB05STATUS: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_007_007 SECONDARY/GP 1928 ALKALINITY, BICARBONATE 130.000 2.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1919 CALCIUM 81.000 1.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1929 ALKALINITY, CARBONATE < 2.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1017 CHLORIDE 130.000 2.500 MG/L 500 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1905 COLOR < 2.000 UNITS 15 05-09-2023 36 2026/05
CA1910134_007_007 SECONDARY/GP 1022 COPPER, FREE < 50.000 UG/L 1000 50 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1915 HARDNESS, TOTAL (AS CACO3) 310.000 3.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1028 IRON 36.000 10.000 UG/L 300 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1031 MAGNESIUM 27.000 0.100 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1032 MANGANESE 2.800 2.000 UG/L 50 01-25-2023 108 2032/01
CA1910134_007_007 SECONDARY/GP 1920 ODOR 2.000 1.000 TON 3 1 05-09-2023 36 2026/05
CA1910134_007_007 SECONDARY/GP C253 PH, FIELD 6.670 pH 07-12-2023 108 2032/07
CA1910134_007_007 SECONDARY/GP 1050 SILVER < 0.500 UG/L 100 10 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1052 SODIUM 100.000 1.000 MG/L 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1064 CONDUCTIVITY @ 25 C UMHOS/CM 1100.000 2.000 UMHO/CM 1600 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1055 SULFATE 230.000 1.300 MG/L 500 .5 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 1930 TDS 670.000 20.000 MG/L 1000 01-25-2023 36 2026/01
CA1910134_007_007 SECONDARY/GP 0100 TURBIDITY 0.150 0.100 NTU 5 .1 05-09-2023 36 2026/05
CA1910134_007_007 SECONDARY/GP 1095 ZINC < 20.000 UG/L 5000 50 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1002 ALUMINUM < 50.000 UG/L 1000 50 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1005 ARSENIC < 2.000 UG/L 10 2 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1010 BARIUM 120.000 100.000 UG/L 1000 100 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1015 CADMIUM < 1.000 UG/L 5 1 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1020 CHROMIUM < 10.000 UG/L 50 10 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1024 CYANIDE < 5.000 UG/L 150 100 10-08-2024 36 2027/10
CA1910134_007_007 INORGANIC 1025 FLUORIDE 0.500 0.100 MG/L 2 .1 06-27-2024 36 2027/06
CA1910134_007_007 INORGANIC 1035 MERCURY < 1.000 UG/L 2 1 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1036 NICKEL < 10.000 UG/L 100 10 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1039 PERCHLORATE < 2.000 UG/L 6 2 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1045 SELENIUM < 5.000 UG/L 50 5 01-25-2023 36 2026/01
CA1910134_007_007 INORGANIC 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 01-25-2023 36 2026/01
CA1910134_007_007 NITRATE/NITRITE 1040 NITRATE < 0.400 MG/L 10 .4 06-27-2024 12 2025/06
CA1910134_007_007 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 06-27-2024 36 2027/06
CA1910134_007_007 RADIOLOGICAL 4109 GROSS ALPHA PARTICLE ACTIVITY 3.060 +/- 2.250 2.150 PCI/L 15 3 01-25-2023 72 2029/01
CA1910134_007_007 RADIOLOGICAL 4020 RADIUM-226 < 0.067 PCI/L 1 01-25-2023 72 2029/01
CA1910134_007_007 RADIOLOGICAL 4030 RADIUM-228 < 0.474 PCI/L 1 01-25-2023 72 2029/01
CA1910134_007_007 RADIOLOGICAL 4006 COMBINED URANIUM 1.900 +/- 0.000 1.000 PCI/L 20 1 01-25-2023 72 2029/01
CA1910134_007_007 REGULATED VOC 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2990 BENZENE < 0.500 UG/L 1 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2996 STYRENE < 0.500 UG/L 100 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2991 TOLUENE < 0.500 UG/L 150 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED VOC 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 09-10-2024 12 2025/09
CA1910134_007_007 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 01-25-2023 33 2025/10
CA1910134_007_007 REGULATED SOC 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 01-25-2023 33 2025/10
CA1910134_007_007 REGULATED SOC 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 01-25-2023 33 2025/10
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.