Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1210015SYSTEM NAME:WILLOW CREEK C.S.D.COUNTY:HUMBOLDT 
SOURCE NO.:009SOURCE NAME:WELLS 02 & 04 COMBINED - RAWSOURCE CLASS:CLSPSTATUS: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
CA1210015_009_009 SECONDARY/GP-203304 1928 ALKALINITY, BICARBONATE 78.000 1.000 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1919 CALCIUM 15.000 0.100 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1929 ALKALINITY, CARBONATE < 1.000 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1017 CHLORIDE 2.200 0.500 MG/L 500 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1022 COPPER, FREE < 5.000 UG/L 1000 50 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-202705 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 05-01-2018 108 2027/05
CA1210015_009_009 SECONDARY/GP-203304 1915 HARDNESS, TOTAL (AS CACO3) 81.000 1.000 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1028 IRON < 50.000 UG/L 300 100 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1031 MAGNESIUM 11.000 0.100 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1032 MANGANESE < 1.000 UG/L 50 20 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1050 SILVER < 10.000 UG/L 100 10 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1052 SODIUM 3.500 0.100 MG/L 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1064 CONDUCTIVITY @ 25 C UMHOS/CM 180.000 1.000 UMHO/CM 1600 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1055 SULFATE 9.000 1.000 MG/L 500 .5 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1930 TDS 110.000 10.000 MG/L 1000 04-10-2024 108 2033/04
CA1210015_009_009 SECONDARY/GP-203304 1095 ZINC < 5.000 UG/L 5000 50 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1002 ALUMINUM < 50.000 UG/L 1000 50 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1074 ANTIMONY, TOTAL < 5.000 UG/L 6 6 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1005 ARSENIC < 2.000 UG/L 10 2 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-202705 1094 ASBESTOS < 0.200 MFL 7 .2 05-10-2018 108 2027/05
CA1210015_009_009 INORGANIC-203304 1010 BARIUM 18.000 5.000 UG/L 1000 100 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1015 CADMIUM < 1.000 UG/L 5 1 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1020 CHROMIUM < 5.000 UG/L 50 10 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1025 FLUORIDE < 0.100 MG/L 2 .1 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1035 MERCURY < 1.000 UG/L 2 1 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1036 NICKEL 10.000 5.000 UG/L 100 10 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-202504 1039 PERCHLORATE < 1.000 UG/L 6 1 04-10-2024 12 2025/04
CA1210015_009_009 INORGANIC-203304 1045 SELENIUM < 5.000 UG/L 50 5 04-10-2024 108 2033/04
CA1210015_009_009 INORGANIC-203304 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 04-10-2024 108 2033/04
CA1210015_009_009 NITRATE/NITRITE-202504 1040 NITRATE 0.210 0.100 MG/L 10 .4 04-10-2024 12 2025/04
CA1210015_009_009 NITRATE/NITRITE-202704 1041 NITRITE < 0.100 MG/L 1 .4 04-10-2024 36 2027/04
CA1210015_009_009 RADIOLOGICAL-203304 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.040 PCI/L 15 3 04-10-2024 108 2033/04
CA1210015_009_009 RADIOLOGICAL-203304 4030 RADIUM-228 < 0.049 PCI/L 1 04-10-2024 108 2033/04
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.