Date:02-07-2026STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:0600012SYSTEM NAME:COLUSA CO. SERVICE AREA #1-CENTURY RANCHCOUNTY:COLUSA 
SOURCE NO.:002SOURCE NAME:GALLERY 01 - RAWSOURCE CLASS:CTSPSTATUS: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
CA0600012_002_002 SECONDARY/GP 1928 ALKALINITY, BICARBONATE 280.000 10.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1919 CALCIUM 36.000 1.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1929 ALKALINITY, CARBONATE < 10.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1017 CHLORIDE 16.000 1.000 MG/L 500 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1905 COLOR < 5.000 UNITS 15 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1915 HARDNESS, TOTAL (AS CACO3) 217.000 1.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1021 HYDROXIDE AS CALCIUM CARBONATE < 10.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1028 IRON < 30.000 UG/L 300 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1031 MAGNESIUM 31.000 1.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1032 MANGANESE < 10.000 UG/L 50 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1920 ODOR < 1.000 TON 3 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP C253 PH, FIELD 7.430 pH 07-18-2024 12 2025/07 DUE NOW
CA0600012_002_002 SECONDARY/GP 1050 SILVER < 1.000 UG/L 100 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1052 SODIUM 14.000 1.000 MG/L 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1064 CONDUCTIVITY @ 25 C UMHOS/CM 492.000 UMHO/CM 1600 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1055 SULFATE 11.200 0.500 MG/L 500 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1930 TDS 260.000 20.000 MG/L 1000 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 0100 TURBIDITY 0.100 0.100 NTU 5 07-18-2024 108 2033/07
CA0600012_002_002 SECONDARY/GP 1095 ZINC < 20.000 UG/L 5000 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1002 ALUMINUM < 50.000 UG/L 1000 50 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1005 ARSENIC < 2.000 UG/L 10 2 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1094 ASBESTOS < 0.200 MFL 7 .2 03-20-2025 108 2034/03
CA0600012_002_002 INORGANIC 1010 BARIUM 122.000 100.000 UG/L 1000 100 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1015 CADMIUM < 1.000 UG/L 5 1 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1020 CHROMIUM < 10.000 UG/L 50 10 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1080 CHROMIUM, HEX < 1.000 UG/L 10 .1 01-23-2025 12 2026/01 DUE NOW
CA0600012_002_002 INORGANIC 1025 FLUORIDE < 0.100 MG/L 2 .1 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1035 MERCURY < 1.000 UG/L 2 1 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1036 NICKEL < 10.000 UG/L 100 10 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1039 PERCHLORATE < 1.000 UG/L 6 1 07-17-2025 12 2026/07
CA0600012_002_002 INORGANIC 1045 SELENIUM < 5.000 UG/L 50 5 07-18-2024 108 2033/07
CA0600012_002_002 INORGANIC 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-18-2024 108 2033/07
CA0600012_002_002 NITRATE/NITRITE 1040 NITRATE < 0.400 MG/L 10 .4 07-17-2025 12 2026/07
CA0600012_002_002 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 07-18-2024 36 2027/07
CA0600012_002_002 RADIOLOGICAL 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.400 PCI/L 15 3 01-16-2020 108 2029/01
CA0600012_002_002 RADIOLOGICAL 4030 RADIUM-228 0.023 +/- 0.652 0.400 PCI/L 1 01-16-2020 108 2029/01
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.