Date:04-28-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910041SYSTEM NAME:THREE VALLEYS MWDCOUNTY:LOS ANGELES 
SOURCE NO.:007SOURCE NAME:GRAND AVENUE WELLSOURCE 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
CA1910041_007_007 SECONDARY/GP-202703 1928 ALKALINITY, BICARBONATE 210.000 5.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1919 CALCIUM 66.000 1.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1929 ALKALINITY, CARBONATE < 5.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1017 CHLORIDE 15.000 1.000 MG/L 500 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1905 COLOR < 3.000 UNITS 15 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1022 COPPER, FREE < 50.000 UG/L 1000 50 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1915 HARDNESS, TOTAL (AS CACO3) 200.000 6.600 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1028 IRON < 100.000 UG/L 300 100 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1031 MAGNESIUM 8.500 1.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1032 MANGANESE < 20.000 UG/L 50 20 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1920 ODOR 1.000 1.000 TON 3 1 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1925 PH 7.700 pH 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1050 SILVER < 10.000 UG/L 100 10 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1052 SODIUM 17.000 1.000 MG/L 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1064 CONDUCTIVITY @ 25 C UMHOS/CM 450.000 2.000 UMHO/CM 1600 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1055 SULFATE 28.000 0.500 MG/L 500 .5 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1930 TDS 280.000 5.000 MG/L 1000 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 0100 TURBIDITY 0.400 0.100 NTU 5 .1 03-28-2024 36 2027/03
CA1910041_007_007 SECONDARY/GP-202703 1095 ZINC < 50.000 UG/L 5000 50 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1002 ALUMINUM < 50.000 UG/L 1000 50 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1005 ARSENIC < 2.000 UG/L 10 2 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1010 BARIUM < 100.000 UG/L 1000 100 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1015 CADMIUM < 1.000 UG/L 5 1 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1020 CHROMIUM < 10.000 UG/L 50 10 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1024 CYANIDE < 100.000 UG/L 150 100 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1025 FLUORIDE 0.370 0.100 MG/L 2 .1 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1035 MERCURY < 1.000 UG/L 2 1 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1036 NICKEL < 10.000 UG/L 100 10 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1039 PERCHLORATE < 1.000 UG/L 6 1 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1045 SELENIUM < 5.000 UG/L 50 5 03-28-2024 36 2027/03
CA1910041_007_007 INORGANIC-202703 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 03-28-2024 36 2027/03
CA1910041_007_007 NITRATE/NITRITE-202503 1040 NITRATE 2.100 0.400 MG/L 10 .4 03-28-2024 12 2025/03
CA1910041_007_007 NITRATE/NITRITE-202703 1041 NITRITE < 0.400 MG/L 1 .4 03-28-2024 36 2027/03
CA1910041_007_007 RADIOLOGICAL-202406 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 03-28-2024 3 2024/06
CA1910041_007_007 RADIOLOGICAL-202207 4020 RADIUM-226 0.750 +/- 0.490 0.070 PCI/L 1 04-19-2022 3 2022/07 DUE NOW
CA1910041_007_007 RADIOLOGICAL-202207 4030 RADIUM-228 0.390 +/- 0.110 0.130 PCI/L 1 04-19-2022 3 2022/07 DUE NOW
CA1910041_007_007 RADIOLOGICAL-202406 4006 COMBINED URANIUM 2.100 +/- 0.000 1.000 PCI/L 20 1 03-28-2024 3 2024/06
CA1910041_007_007 REGULATED VOC-202503 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2990 BENZENE < 0.500 UG/L 1 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2996 STYRENE < 0.500 UG/L 100 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2991 TOLUENE < 0.500 UG/L 150 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED VOC-202503 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 03-28-2024 12 2025/03
CA1910041_007_007 REGULATED SOC-202611 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 02-28-2024 33 2026/11
CA1910041_007_007 REGULATED SOC-202603 2105 2,4-D < 10.000 UG/L 70 10 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2050 ATRAZINE < 0.500 UG/L 1 .5 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2625 BENTAZON < 2.000 UG/L 18 2 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2046 CARBOFURAN < 5.000 UG/L 18 5 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2959 CHLORDANE < 0.100 UG/L .1 .1 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2041 DINOSEB < 2.000 UG/L 7 2 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2032 DIQUAT < 4.000 UG/L 20 4 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2033 ENDOTHALL < 45.000 UG/L 100 45 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2005 ENDRIN < 0.100 UG/L 2 .1 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2034 GLYPHOSATE < 25.000 UG/L 700 25 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2010 BHC-GAMMA < 0.200 UG/L .2 .2 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2015 METHOXYCHLOR < 10.000 UG/L 30 10 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2036 OXAMYL < 20.000 UG/L 50 20 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202603 2037 SIMAZINE < 1.000 UG/L 4 1 06-15-2023 33 2026/03
CA1910041_007_007 REGULATED SOC-202612 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 03-28-2024 33 2026/12
CA1910041_007_007 REGULATED SOC-202603 2020 TOXAPHENE < 1.000 UG/L 3 1 06-15-2023 33 2026/03
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.