Date:05-12-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:0610004SYSTEM NAME:CITY OF WILLIAMSCOUNTY:COLUSA 
SOURCE NO.:011SOURCE NAME:WELL 10 - RAWSOURCE CLASS:CTGASTATUS: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
CA0610004_011_011 SECONDARY/GP-202511 1928 ALKALINITY, BICARBONATE 240.000 MG/L 11-08-2016 108 2025/11
CA0610004_011_011 SECONDARY/GP-202712 1919 CALCIUM 34.000 MG/L 12-04-2018 108 2027/12
CA0610004_011_011 SECONDARY/GP-202511 1929 ALKALINITY, CARBONATE < MG/L 11-08-2016 108 2025/11
CA0610004_011_011 SECONDARY/GP-203212 1017 CHLORIDE 120.000 5.000 MG/L 500 12-05-2023 108 2032/12
CA0610004_011_011 SECONDARY/GP-202909 1905 COLOR < UNITS 15 09-15-2020 108 2029/09
CA0610004_011_011 SECONDARY/GP-203110 1022 COPPER, FREE < 50.000 UG/L 1000 50 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-203110 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-202712 1915 HARDNESS, TOTAL (AS CACO3) 197.000 MG/L 12-04-2018 108 2027/12
CA0610004_011_011 SECONDARY/GP-202511 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 11-08-2016 108 2025/11
CA0610004_011_011 SECONDARY/GP-203110 1028 IRON < 100.000 UG/L 300 100 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-202712 1031 MAGNESIUM 28.000 MG/L 12-04-2018 108 2027/12
CA0610004_011_011 SECONDARY/GP-203202 1032 MANGANESE 110.000 20.000 UG/L 50 20 02-07-2023 108 2032/02
CA0610004_011_011 SECONDARY/GP-202909 1920 ODOR < 1.000 TON 3 1 09-15-2020 108 2029/09
CA0610004_011_011 SECONDARY/GP-202712 1925 PH 7.840 pH 12-04-2018 108 2027/12
CA0610004_011_011 SECONDARY/GP-203110 1050 SILVER < 10.000 UG/L 100 10 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-202511 1052 SODIUM 93.000 MG/L 11-08-2016 108 2025/11
CA0610004_011_011 SECONDARY/GP-202903 1064 CONDUCTIVITY @ 25 C UMHOS/CM 800.000 UMHO/CM 1600 03-04-2020 108 2029/03
CA0610004_011_011 SECONDARY/GP-203110 1055 SULFATE 120.000 5.000 MG/L 500 .5 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-203110 1930 TDS 670.000 10.000 MG/L 1000 10-03-2022 108 2031/10
CA0610004_011_011 SECONDARY/GP-202909 0100 TURBIDITY 0.210 0.100 NTU 5 .1 09-15-2020 108 2029/09
CA0610004_011_011 SECONDARY/GP-203110 1095 ZINC < 50.000 UG/L 5000 50 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1002 ALUMINUM < 50.000 UG/L 1000 50 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-202612 1005 ARSENIC 2.900 2.000 UG/L 10 2 12-05-2023 36 2026/12
CA0610004_011_011 INORGANIC-203110 1010 BARIUM < 100.000 UG/L 1000 100 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1015 CADMIUM < 1.000 UG/L 5 1 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1020 CHROMIUM < 10.000 UG/L 50 10 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203212 1025 FLUORIDE 0.340 0.100 MG/L 2 .1 12-05-2023 108 2032/12
CA0610004_011_011 INORGANIC-203110 1035 MERCURY < 0.200 UG/L 2 1 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1036 NICKEL < 10.000 UG/L 100 10 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-202603 1039 PERCHLORATE < 2.000 UG/L 6 2 03-27-2023 36 2026/03
CA0610004_011_011 INORGANIC-203110 1045 SELENIUM < 5.000 UG/L 50 5 10-03-2022 108 2031/10
CA0610004_011_011 INORGANIC-203110 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 10-03-2022 108 2031/10
CA0610004_011_011 NITRATE/NITRITE-202411 1040 NITRATE < 0.400 MG/L 10 .4 11-07-2023 12 2024/11
CA0610004_011_011 NITRATE/NITRITE-202511 1041 NITRITE < 0.400 MG/L 1 .4 11-09-2022 36 2025/11
CA0610004_011_011 RADIOLOGICAL-202709 4109 GROSS ALPHA PARTICLE ACTIVITY 1.940 +/- 2.360 2.800 PCI/L 15 3 09-18-2018 108 2027/09
CA0610004_011_011 RADIOLOGICAL-202709 4030 RADIUM-228 < 0.400 PCI/L 1 09-18-2018 108 2027/09
CA0610004_011_011 REGULATED VOC-202509 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2990 BENZENE < 0.500 UG/L 1 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2996 STYRENE < 0.500 UG/L 100 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2991 TOLUENE < 0.500 UG/L 150 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED VOC-202509 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 09-17-2019 72 2025/09
CA0610004_011_011 REGULATED SOC-202409 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202409 2105 2,4-D < 10.000 UG/L 70 10 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202409 2050 ATRAZINE < 0.500 UG/L 1 .5 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202409 2625 BENTAZON < 2.000 UG/L 18 2 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202603 2032 DIQUAT < 4.000 UG/L 20 4 03-27-2023 36 2026/03
CA0610004_011_011 REGULATED SOC-202603 2033 ENDOTHALL < 45.000 UG/L 100 45 03-27-2023 36 2026/03
CA0610004_011_011 REGULATED SOC-202409 2034 GLYPHOSATE < 25.000 UG/L 700 25 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202409 2037 SIMAZINE < 1.000 UG/L 4 1 09-21-2021 36 2024/09
CA0610004_011_011 REGULATED SOC-202501 2727 THIOBENCARB (BOLERO) < 0.260 UG/L 70 1 01-25-2022 36 2025/01
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.