Date:06-28-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1810003SYSTEM NAME:LASSEN COUNTY WATER DISTRICT #1COUNTY:LASSEN 
SOURCE NO.:All SourcesSOURCE NAME:N/ASOURCE CLASS:N/ASTATUS:N/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
CA1810003_001_001 SECONDARY/GP-202705 1928 ALKALINITY, BICARBONATE 190.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1919 CALCIUM 20.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1929 ALKALINITY, CARBONATE < 10.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1017 CHLORIDE 10.000 MG/L 500 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202409 1905 COLOR 5.000 UNITS 15 09-10-2015 108 2024/09
CA1810003_001_001 SECONDARY/GP-202705 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1915 HARDNESS, TOTAL (AS CACO3) 99.300 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1021 HYDROXIDE AS CALCIUM CARBONATE < 10.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-203303 1028 IRON 1400.000 50.000 UG/L 300 03-13-2024 108 2033/03
CA1810003_001_001 SECONDARY/GP-202705 1031 MAGNESIUM 12.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-203303 1032 MANGANESE 350.000 10.000 UG/L 50 03-13-2024 108 2033/03
CA1810003_001_001 SECONDARY/GP-202409 1920 ODOR 1.000 1.000 TON 3 1 09-10-2015 108 2024/09
CA1810003_001_001 SECONDARY/GP-202705 1925 PH 7.500 pH 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1050 SILVER < 10.000 UG/L 100 10 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1052 SODIUM 30.000 MG/L 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1064 CONDUCTIVITY @ 25 C UMHOS/CM 364.000 UMHO/CM 1600 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1055 SULFATE 19.300 0.500 MG/L 500 .5 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202705 1930 TDS 220.000 MG/L 1000 05-10-2018 108 2027/05
CA1810003_001_001 SECONDARY/GP-202409 0100 TURBIDITY 2.800 0.100 NTU 5 .1 09-10-2015 108 2024/09
CA1810003_001_001 SECONDARY/GP-202705 1095 ZINC 180.000 50.000 UG/L 5000 50 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1002 ALUMINUM < 50.000 UG/L 1000 50 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1005 ARSENIC 3.000 2.000 UG/L 10 2 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1010 BARIUM < 100.000 UG/L 1000 100 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1015 CADMIUM < 1.000 UG/L 5 1 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1020 CHROMIUM < 10.000 UG/L 50 10 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1025 FLUORIDE 0.200 0.100 MG/L 2 .1 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1035 MERCURY < 1.000 UG/L 2 1 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1036 NICKEL < 10.000 UG/L 100 10 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202605 1039 PERCHLORATE < 2.000 UG/L 6 2 05-17-2023 36 2026/05
CA1810003_001_001 INORGANIC-202705 1045 SELENIUM < 5.000 UG/L 50 5 05-10-2018 108 2027/05
CA1810003_001_001 INORGANIC-202705 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-10-2018 108 2027/05
CA1810003_001_001 NITRATE/NITRITE-202505 1040 NITRATE < 0.400 MG/L 10 .4 05-21-2024 12 2025/05
CA1810003_001_001 NITRATE/NITRITE-202705 1041 NITRITE < 0.400 MG/L 1 .4 05-21-2024 36 2027/05
CA1810003_001_001 RADIOLOGICAL-202506 4109 GROSS ALPHA PARTICLE ACTIVITY 0.704 +/- 1.170 1.500 PCI/L 15 3 06-09-2016 108 2025/06
CA1810003_001_001 RADIOLOGICAL-202506 4030 RADIUM-228 0.017 +/- 0.491 0.200 PCI/L 1 06-09-2016 108 2025/06
CA1810003_001_001 REGULATED VOC-203005 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2990 BENZENE < 0.500 UG/L 1 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2982 CARBON TETRACHLORIDE 2.700 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2996 STYRENE < 0.500 UG/L 100 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2991 TOLUENE < 0.500 UG/L 150 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_001_001 REGULATED VOC-203005 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 05-21-2024 72 2030/05
CA1810003_002_002 SECONDARY/GP-202705 1928 ALKALINITY, BICARBONATE 200.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1919 CALCIUM 29.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1929 ALKALINITY, CARBONATE < 10.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1017 CHLORIDE 10.000 MG/L 500 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202409 1905 COLOR 35.000 UNITS 15 09-10-2015 108 2024/09
CA1810003_002_002 SECONDARY/GP-202705 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1915 HARDNESS, TOTAL (AS CACO3) 101.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1021 HYDROXIDE AS CALCIUM CARBONATE < 10.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-203303 1028 IRON 2580.000 50.000 UG/L 300 03-13-2024 108 2033/03
CA1810003_002_002 SECONDARY/GP-202705 1031 MAGNESIUM 7.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-203303 1032 MANGANESE 400.000 10.000 UG/L 50 03-13-2024 108 2033/03
CA1810003_002_002 SECONDARY/GP-202409 1920 ODOR 1.000 1.000 TON 3 1 09-10-2015 108 2024/09
CA1810003_002_002 SECONDARY/GP-202705 1925 PH 7.500 pH 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1050 SILVER < 10.000 UG/L 100 10 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1052 SODIUM 29.000 MG/L 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1064 CONDUCTIVITY @ 25 C UMHOS/CM 341.000 UMHO/CM 1600 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1055 SULFATE 1.700 0.500 MG/L 500 .5 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202705 1930 TDS 190.000 MG/L 1000 05-10-2018 108 2027/05
CA1810003_002_002 SECONDARY/GP-202409 0100 TURBIDITY 1.500 0.100 NTU 5 .1 09-10-2015 108 2024/09
CA1810003_002_002 SECONDARY/GP-202705 1095 ZINC 90.000 50.000 UG/L 5000 50 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1002 ALUMINUM < 50.000 UG/L 1000 50 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1005 ARSENIC < 2.000 UG/L 10 2 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1010 BARIUM < 100.000 UG/L 1000 100 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1015 CADMIUM < 1.000 UG/L 5 1 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1020 CHROMIUM < 10.000 UG/L 50 10 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1025 FLUORIDE 0.200 0.100 MG/L 2 .1 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1035 MERCURY < 1.000 UG/L 2 1 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1036 NICKEL < 10.000 UG/L 100 10 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202605 1039 PERCHLORATE < 2.000 UG/L 6 2 05-17-2023 36 2026/05
CA1810003_002_002 INORGANIC-202705 1045 SELENIUM < 5.000 UG/L 50 5 05-10-2018 108 2027/05
CA1810003_002_002 INORGANIC-202705 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-10-2018 108 2027/05
CA1810003_002_002 NITRATE/NITRITE-202505 1040 NITRATE < 0.400 MG/L 10 .4 05-21-2024 12 2025/05
CA1810003_002_002 NITRATE/NITRITE-202705 1041 NITRITE < 0.400 MG/L 1 .4 05-21-2024 36 2027/05
CA1810003_002_002 RADIOLOGICAL-202506 4109 GROSS ALPHA PARTICLE ACTIVITY 0.466 +/- 1.060 1.400 PCI/L 15 3 06-09-2016 108 2025/06
CA1810003_002_002 RADIOLOGICAL-202506 4030 RADIUM-228 0.112 +/- 0.487 0.300 PCI/L 1 06-09-2016 108 2025/06
CA1810003_002_002 REGULATED VOC-203005 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2990 BENZENE < 0.500 UG/L 1 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2996 STYRENE < 0.500 UG/L 100 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2991 TOLUENE < 0.500 UG/L 150 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 05-21-2024 72 2030/05
CA1810003_002_002 REGULATED VOC-203005 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 05-21-2024 72 2030/05
CA1810003_DST_006 INORGANIC-201903 1094 ASBESTOS MFL 7 .2 108 2019/03 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2943 BROMODICHLOROMETHANE < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2942 BROMOFORM < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2941 CHLOROFORM < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2454 DIBROMOACETIC ACID < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2944 DIBROMOCHLOROMETHANE < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2451 DICHLOROACETIC ACID < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2456 TOTAL HALOACETIC ACIDS (HAA5) < UG/L 60 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2450 MONOCHLOROACETIC ACID < 2.000 UG/L 2 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2950 TTHM < UG/L 80 08-13-2020 36 2023/08 DUE NOW
CA1810003_DST_801 DISINFECTION BYPRODUCTS-202308 2452 TRICHLOROACETIC ACID < 1.000 UG/L 1 08-13-2020 36 2023/08 DUE NOW
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.