Date:05-20-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1210024SYSTEM NAME:WESTHAVEN C.S.D.COUNTY:HUMBOLDT 
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
CA1210024_004_004 SECONDARY/GP-203107 1928 ALKALINITY, BICARBONATE 22.560 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1919 CALCIUM 2.710 0.100 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1929 ALKALINITY, CARBONATE < 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1017 CHLORIDE 10.730 0.500 MG/L 500 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203202 1905 COLOR 3.000 3.000 UNITS 15 02-22-2023 108 2032/02
CA1210024_004_004 SECONDARY/GP-203107 1022 COPPER, FREE 1.420 1.000 UG/L 1000 50 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1915 HARDNESS, TOTAL (AS CACO3) 16.890 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1028 IRON 160.400 50.000 UG/L 300 100 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1031 MAGNESIUM 2.450 0.100 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1032 MANGANESE 4.510 1.000 UG/L 50 20 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203202 1920 ODOR < 1.000 TON 3 1 02-22-2023 108 2032/02
CA1210024_004_004 SECONDARY/GP-203107 1925 PH 7.130 pH 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1050 SILVER < 10.000 UG/L 100 10 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1052 SODIUM 16.000 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1064 CONDUCTIVITY @ 25 C UMHOS/CM 94.410 1.000 UMHO/CM 1600 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-203107 1055 SULFATE 2.330 1.000 MG/L 500 .5 07-27-2022 108 2031/07
CA1210024_004_004 SECONDARY/GP-202701 1930 TDS 130.000 MG/L 1000 01-17-2018 108 2027/01
CA1210024_004_004 SECONDARY/GP-203202 0100 TURBIDITY < 0.100 NTU 5 .1 02-22-2023 108 2032/02
CA1210024_004_004 SECONDARY/GP-203107 1095 ZINC < 10.000 UG/L 5000 50 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1002 ALUMINUM 68.940 50.000 UG/L 1000 50 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1005 ARSENIC < 2.000 UG/L 10 2 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-202406 1010 BARIUM < 100.000 UG/L 1000 100 06-24-2015 108 2024/06
CA1210024_004_004 INORGANIC-202406 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 06-24-2015 108 2024/06
CA1210024_004_004 INORGANIC-202406 1015 CADMIUM < 1.000 UG/L 5 1 06-24-2015 108 2024/06
CA1210024_004_004 INORGANIC-203107 1020 CHROMIUM < 5.000 UG/L 50 10 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1025 FLUORIDE < 0.100 MG/L 2 .1 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1035 MERCURY < 1.000 UG/L 2 1 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-202406 1036 NICKEL < 10.000 UG/L 100 10 06-24-2015 108 2024/06
CA1210024_004_004 INORGANIC-202507 1039 PERCHLORATE < 2.000 UG/L 6 2 07-27-2022 36 2025/07
CA1210024_004_004 INORGANIC-203107 1045 SELENIUM < 5.000 UG/L 50 5 07-27-2022 108 2031/07
CA1210024_004_004 INORGANIC-203107 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-27-2022 108 2031/07
CA1210024_004_004 NITRATE/NITRITE-202406 1040 NITRATE 4.500 0.100 MG/L 10 .4 03-06-2024 3 2024/06
CA1210024_004_004 NITRATE/NITRITE-202703 1041 NITRITE < 0.100 MG/L 1 .4 03-06-2024 36 2027/03
CA1210024_004_004 RADIOLOGICAL-203202 4109 GROSS ALPHA PARTICLE ACTIVITY 3.040 +/- 1.230 1.630 PCI/L 15 3 02-22-2023 108 2032/02
CA1210024_004_004 RADIOLOGICAL-203202 4030 RADIUM-228 < 0.624 PCI/L 1 02-22-2023 108 2032/02
CA1210024_004_004 REGULATED VOC-202902 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2990 BENZENE < 0.500 UG/L 1 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2996 STYRENE < 0.500 UG/L 100 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2991 TOLUENE < 0.500 UG/L 150 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED VOC-202902 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 02-22-2023 72 2029/02
CA1210024_004_004 REGULATED SOC-202603 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 03-08-2023 36 2026/03
CA1210024_010_010 SECONDARY/GP-203107 1928 ALKALINITY, BICARBONATE 36.520 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1919 CALCIUM 12.980 0.100 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1929 ALKALINITY, CARBONATE < 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1017 CHLORIDE 18.490 0.500 MG/L 500 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1022 COPPER, FREE 30.550 2.000 UG/L 1000 50 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1915 HARDNESS, TOTAL (AS CACO3) 53.700 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1028 IRON < 50.000 UG/L 300 100 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1031 MAGNESIUM 5.170 0.100 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1032 MANGANESE 4.940 1.000 UG/L 50 20 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1050 SILVER < 10.000 UG/L 100 10 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1052 SODIUM 10.000 1.000 MG/L 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1064 CONDUCTIVITY @ 25 C UMHOS/CM 90.000 1.000 UMHO/CM 1600 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-203107 1055 SULFATE 7.360 1.000 MG/L 500 .5 07-27-2022 108 2031/07
CA1210024_010_010 SECONDARY/GP-202701 1930 TDS 64.000 MG/L 1000 01-17-2018 108 2027/01
CA1210024_010_010 SECONDARY/GP-203107 1095 ZINC 23.310 10.000 UG/L 5000 50 07-27-2022 108 2031/07
CA1210024_010_010 INORGANIC-202207 1002 ALUMINUM 100.000 50.000 UG/L 1000 50 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1005 ARSENIC < 2.000 UG/L 10 2 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202502 1094 ASBESTOS < 0.200 MFL 7 .2 02-10-2016 108 2025/02
CA1210024_010_010 INORGANIC-202207 1010 BARIUM < 100.000 UG/L 1000 100 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1015 CADMIUM < 1.000 UG/L 5 1 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1020 CHROMIUM < 10.000 UG/L 50 10 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1025 FLUORIDE < 0.100 MG/L 2 .1 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1035 MERCURY < 1.000 UG/L 2 1 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1036 NICKEL < 10.000 UG/L 100 10 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202307 1039 PERCHLORATE < 2.000 UG/L 6 2 07-27-2022 12 2023/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1045 SELENIUM < 5.000 UG/L 50 5 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 INORGANIC-202207 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-17-2013 108 2022/07 DUE NOW
CA1210024_010_010 NITRATE/NITRITE-202209 1040 NITRATE 0.920 0.100 MG/L 10 .4 09-08-2021 12 2022/09 DUE NOW
CA1210024_010_010 NITRATE/NITRITE-202409 1041 NITRITE < 0.100 MG/L 1 .4 09-08-2021 36 2024/09
CA1210024_010_010 RADIOLOGICAL-201907 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 07-01-2010 108 2019/07 DUE NOW
CA1210024_010_010 RADIOLOGICAL-202212 4030 RADIUM-228 < 0.200 PCI/L 1 12-02-2013 108 2022/12 DUE NOW
CA1210024_010_010 REGULATED SOC-202102 2414 1,2,3-TRICHLOROPROPANE < UG/L 0.005 02-14-2018 36 2021/02 DUE NOW
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2943 BROMODICHLOROMETHANE 18.000 1.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2942 BROMOFORM 4.100 1.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2941 CHLOROFORM 190.000 50.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2454 DIBROMOACETIC ACID 2.700 1.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2944 DIBROMOCHLOROMETHANE 9.800 1.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2451 DICHLOROACETIC ACID 82.000 20.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2456 TOTAL HALOACETIC ACIDS (HAA5) 310.000 6.000 UG/L 60 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2450 MONOCHLOROACETIC ACID 2.400 2.000 UG/L 2 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2950 TTHM 220.000 4.000 UG/L 80 03-06-2024 12 2025/03
CA1210024_DST_901 DISINFECTION BYPRODUCTS-202503 2452 TRICHLOROACETIC ACID 220.000 20.000 UG/L 1 03-06-2024 12 2025/03
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.