Date:04-20-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910240SYSTEM NAME:SANTA CLARITA VALLEY W.A.-VALENCIA DIVISCOUNTY:LOS ANGELES 
SOURCE NO.:087SOURCE NAME:CASTAIC LAKE - RAWSOURCE CLASS:LSLASTATUS: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
CA1910240_087_087 SECONDARY/GP-202503 1928 ALKALINITY, BICARBONATE 95.000 2.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1919 CALCIUM 41.000 1.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1929 ALKALINITY, CARBONATE < 2.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1017 CHLORIDE 38.000 1.000 MG/L 500 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1905 COLOR 10.000 5.000 UNITS 15 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1022 COPPER, FREE < 50.000 UG/L 1000 50 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202408 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 08-03-2023 12 2024/08
CA1910240_087_087 SECONDARY/GP-202503 1915 HARDNESS, TOTAL (AS CACO3) 160.000 1.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1028 IRON 160.000 100.000 UG/L 300 100 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1031 MAGNESIUM 13.000 1.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1032 MANGANESE < 20.000 UG/L 50 20 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1920 ODOR 1.000 1.000 TON 3 1 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1925 PH 7.870 pH 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1050 SILVER < 10.000 UG/L 100 10 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1052 SODIUM 43.000 1.000 MG/L 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1064 CONDUCTIVITY @ 25 C UMHOS/CM 610.000 1.000 UMHO/CM 1600 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1055 SULFATE 89.000 0.500 MG/L 500 .5 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1930 TDS 310.000 5.000 MG/L 1000 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 0100 TURBIDITY 4.800 0.100 NTU 5 .1 03-04-2024 12 2025/03
CA1910240_087_087 SECONDARY/GP-202503 1095 ZINC < 50.000 UG/L 5000 50 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1002 ALUMINUM 110.000 50.000 UG/L 1000 50 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1005 ARSENIC < 2.000 UG/L 10 2 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202910 1094 ASBESTOS < 0.200 MFL 7 .2 10-14-2020 108 2029/10
CA1910240_087_087 INORGANIC-202503 1010 BARIUM < 100.000 UG/L 1000 100 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1015 CADMIUM < 1.000 UG/L 5 1 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1020 CHROMIUM < 10.000 UG/L 50 10 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202408 1024 CYANIDE < 100.000 UG/L 150 100 08-03-2023 12 2024/08
CA1910240_087_087 INORGANIC-202503 1025 FLUORIDE 0.280 0.100 MG/L 2 .1 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202408 1035 MERCURY < 1.000 UG/L 2 1 08-03-2023 12 2024/08
CA1910240_087_087 INORGANIC-202503 1036 NICKEL < 10.000 UG/L 100 10 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202408 1039 PERCHLORATE < 2.000 UG/L 6 2 08-03-2023 12 2024/08
CA1910240_087_087 INORGANIC-202503 1045 SELENIUM < 5.000 UG/L 50 5 03-04-2024 12 2025/03
CA1910240_087_087 INORGANIC-202503 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 03-04-2024 12 2025/03
CA1910240_087_087 NITRATE/NITRITE-202406 1040 NITRATE 0.830 0.400 MG/L 10 .4 03-04-2024 3 2024/06
CA1910240_087_087 NITRATE/NITRITE-202703 1041 NITRITE < 0.400 MG/L 1 .4 03-04-2024 36 2027/03
CA1910240_087_087 RADIOLOGICAL-202403 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.140 PCI/L 15 3 12-18-2023 3 2024/03 DUE NOW
CA1910240_087_087 RADIOLOGICAL-202403 4100 GROSS BETA PARTICLE ACTIVITY < 1.000 PCI/L 50 4 12-18-2023 3 2024/03 DUE NOW
CA1910240_087_087 RADIOLOGICAL-202012 4020 RADIUM-226 < 0.400 PCI/L 1 09-02-2020 3 2020/12 DUE NOW
CA1910240_087_087 RADIOLOGICAL-202012 4030 RADIUM-228 < 0.700 PCI/L 1 09-02-2020 3 2020/12 DUE NOW
CA1910240_087_087 RADIOLOGICAL-202408 4174 38-STRONTIUM-90 < 0.312 PCI/L 8 2 08-03-2023 12 2024/08
CA1910240_087_087 RADIOLOGICAL-202408 4102 TRITIUM < 310.000 PCI/L 20000 1000 08-03-2023 12 2024/08
CA1910240_087_087 RADIOLOGICAL-202311 4006 COMBINED URANIUM 2.700 +/- 0.000 1.000 PCI/L 20 1 08-03-2023 3 2023/11 DUE NOW
CA1910240_087_087 REGULATED VOC-202408 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202307 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-22-2022 12 2023/07 DUE NOW
CA1910240_087_087 REGULATED VOC-202408 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2990 BENZENE < 0.500 UG/L 1 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2996 STYRENE < 0.500 UG/L 100 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2991 TOLUENE < 0.500 UG/L 150 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202408 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-03-2023 12 2024/08
CA1910240_087_087 REGULATED VOC-202307 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-22-2022 12 2023/07 DUE NOW
CA1910240_087_087 REGULATED SOC-202607 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202306 2063 2,3,7,8-TCDD < NG/L 0.03 0.005 09-02-2020 33 2023/06 DUE NOW
CA1910240_087_087 REGULATED SOC-202607 2110 2,4,5-TP < 1.000 UG/L 50 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2105 2,4-D < 10.000 UG/L 70 10 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2050 ATRAZINE < 0.500 UG/L 1 .5 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2625 BENTAZON < 2.000 UG/L 18 2 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2046 CARBOFURAN < 5.000 UG/L 18 5 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2959 CHLORDANE < 0.100 UG/L .1 .1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2031 DALAPON < 10.000 UG/L 200 10 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2041 DINOSEB < 2.000 UG/L 7 2 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2032 DIQUAT < 4.000 UG/L 20 4 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2033 ENDOTHALL < 45.000 UG/L 100 45 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2005 ENDRIN < 0.100 UG/L 2 .1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2034 GLYPHOSATE < 25.000 UG/L 700 25 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2065 HEPTACHLOR < 0.010 UG/L .01 .01 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2274 HEXACHLOROBENZENE < 0.500 UG/L 1 .5 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2042 HEXACHLOROCYCLOPENTADIENE < 1.000 UG/L 50 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2010 BHC-GAMMA < 0.200 UG/L .2 .2 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2015 METHOXYCHLOR < 10.000 UG/L 30 10 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2626 MOLINATE < 2.000 UG/L 20 2 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2036 OXAMYL < 20.000 UG/L 50 20 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2040 PICLORAM < 1.000 UG/L 500 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2037 SIMAZINE < 1.000 UG/L 4 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 10-11-2023 33 2026/07
CA1910240_087_087 REGULATED SOC-202607 2020 TOXAPHENE < 1.000 UG/L 3 1 10-11-2023 33 2026/07
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.