Date:05-03-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910006SYSTEM NAME:SO. CAL. EDISON CO.-SANTA CATALINACOUNTY:LOS ANGELES 
SOURCE NO.:006SOURCE NAME:COTTONWOOD WELL 01-ASOURCE CLASS:LGLBSTATUS: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
CA1910006_006_006 SECONDARY/GP-202612 1928 ALKALINITY, BICARBONATE 370.000 24.000 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1919 CALCIUM 61.700 0.500 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1929 ALKALINITY, CARBONATE < 20.000 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1017 CHLORIDE 220.000 50.000 MG/L 500 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1905 COLOR < 3.000 UNITS 15 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1022 COPPER, FREE 4.400 1.000 UG/L 1000 50 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1915 HARDNESS, TOTAL (AS CACO3) 394.000 3.310 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1021 HYDROXIDE AS CALCIUM CARBONATE < 20.000 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1028 IRON < 30.000 UG/L 300 100 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1031 MAGNESIUM 58.200 0.500 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1032 MANGANESE 1.200 1.000 UG/L 50 20 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1920 ODOR < 1.000 TON 3 1 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1925 PH 7.450 0.100 pH 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1050 SILVER < 0.200 UG/L 100 10 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1052 SODIUM 110.000 10.000 MG/L 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1064 CONDUCTIVITY @ 25 C UMHOS/CM 1300.000 2.000 UMHO/CM 1600 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1055 SULFATE 53.000 50.000 MG/L 500 .5 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1930 TDS 710.000 10.000 MG/L 1000 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 0100 TURBIDITY 0.100 0.100 NTU 5 .1 12-27-2023 36 2026/12
CA1910006_006_006 SECONDARY/GP-202612 1095 ZINC < 10.000 UG/L 5000 50 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1002 ALUMINUM < 20.000 UG/L 1000 50 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1074 ANTIMONY, TOTAL < 0.500 UG/L 6 6 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1005 ARSENIC 0.730 0.500 UG/L 10 2 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202103 1094 ASBESTOS < 0.200 MFL 7 .2 03-29-2012 108 2021/03 DUE NOW
CA1910006_006_006 INORGANIC-202612 1010 BARIUM 120.000 1.000 UG/L 1000 100 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1075 BERYLLIUM, TOTAL < 0.100 UG/L 4 1 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1015 CADMIUM < 0.500 UG/L 5 1 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1020 CHROMIUM < 2.000 UG/L 50 10 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1024 CYANIDE < 5.000 UG/L 150 100 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202512 1025 FLUORIDE 0.160 0.100 MG/L 2 .1 12-06-2022 36 2025/12
CA1910006_006_006 INORGANIC-202612 1035 MERCURY < 0.050 UG/L 2 1 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1036 NICKEL 2.900 2.000 UG/L 100 10 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202311 1039 PERCHLORATE < 4.000 UG/L 6 4 11-18-2020 36 2023/11 DUE NOW
CA1910006_006_006 INORGANIC-202612 1045 SELENIUM < 0.500 UG/L 50 5 12-27-2023 36 2026/12
CA1910006_006_006 INORGANIC-202612 1085 THALLIUM, TOTAL < 0.200 UG/L 2 1 12-27-2023 36 2026/12
CA1910006_006_006 NITRATE/NITRITE-202412 1040 NITRATE < 0.200 MG/L 10 .4 12-27-2023 12 2024/12
CA1910006_006_006 NITRATE/NITRITE-202612 1041 NITRITE < 0.100 MG/L 1 .4 12-27-2023 36 2026/12
CA1910006_006_006 RADIOLOGICAL-202911 4109 GROSS ALPHA PARTICLE ACTIVITY < PCI/L 15 3 11-18-2020 108 2029/11
CA1910006_006_006 RADIOLOGICAL-202911 4030 RADIUM-228 < 0.800 PCI/L 1 11-18-2020 108 2029/11
CA1910006_006_006 RADIOLOGICAL-202911 4006 COMBINED URANIUM < 1.000 PCI/L 20 1 11-18-2020 108 2029/11
CA1910006_006_006 REGULATED VOC-202612 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2990 BENZENE < 0.500 UG/L 1 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2251 METHYL TERT-BUTYL ETHER < 2.000 UG/L 13 3 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2996 STYRENE < 0.500 UG/L 100 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2991 TOLUENE < 0.500 UG/L 150 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2904 TRICHLOROTRIFLUOROETHANE < 5.000 UG/L 1200 10 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED VOC-202612 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 12-27-2023 36 2026/12
CA1910006_006_006 REGULATED SOC-202609 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2105 2,4-D < 0.400 UG/L 70 10 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2051 LASSO (ALACHLOR) < 0.100 UG/L 2 1 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2050 ATRAZINE < 0.100 UG/L 1 .5 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2625 BENTAZON < 2.000 UG/L 18 2 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2046 CARBOFURAN < 2.000 UG/L 18 5 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2959 CHLORDANE < 0.100 UG/L .1 .1 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2041 DINOSEB < 0.400 UG/L 7 2 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2032 DIQUAT < 4.000 UG/L 20 4 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2033 ENDOTHALL < 45.000 UG/L 100 45 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2005 ENDRIN < 0.010 UG/L 2 .1 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2034 GLYPHOSATE < 5.000 UG/L 700 25 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2010 BHC-GAMMA < 0.010 UG/L .2 .2 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2015 METHOXYCHLOR < 0.010 UG/L 30 10 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2036 OXAMYL < 2.000 UG/L 50 20 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2037 SIMAZINE < 0.100 UG/L 4 1 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2727 THIOBENCARB (BOLERO) < 0.100 UG/L 70 1 12-27-2023 33 2026/09
CA1910006_006_006 REGULATED SOC-202609 2020 TOXAPHENE < 1.000 UG/L 3 1 12-27-2023 33 2026/09
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.