Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4510007SYSTEM NAME:COTTONWOOD WATER DISTRICTCOUNTY:SHASTA 
SOURCE NO.:005SOURCE NAME:WELL 05 - OAK ST.SOURCE CLASS:CLGPSTATUS: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
CA4510007_005_005 SECONDARY/GP-202304 1928 ALKALINITY, BICARBONATE 109.000 MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1919 CALCIUM 11.300 MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1929 ALKALINITY, CARBONATE < MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1017 CHLORIDE 2.700 MG/L 500 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202811 1905 COLOR < UNITS 15 11-12-2019 108 2028/11
CA4510007_005_005 SECONDARY/GP-202304 1022 COPPER, FREE 94.400 50.000 UG/L 1000 50 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1915 HARDNESS, TOTAL (AS CACO3) 63.000 MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1028 IRON 161.000 100.000 UG/L 300 100 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1031 MAGNESIUM 9.040 MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1032 MANGANESE < 20.000 UG/L 50 20 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202811 1920 ODOR < 1.000 TON 3 1 11-12-2019 108 2028/11
CA4510007_005_005 SECONDARY/GP-202304 1925 PH 7.620 pH 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202505 1050 SILVER < 10.000 UG/L 100 10 05-24-2016 108 2025/05
CA4510007_005_005 SECONDARY/GP-202304 1052 SODIUM 17.700 MG/L 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1064 CONDUCTIVITY @ 25 C UMHOS/CM 180.000 UMHO/CM 1600 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1055 SULFATE 2.200 0.500 MG/L 500 .5 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202304 1930 TDS 154.000 MG/L 1000 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 SECONDARY/GP-202811 0100 TURBIDITY < 0.100 NTU 5 .1 11-12-2019 108 2028/11
CA4510007_005_005 SECONDARY/GP-202304 1095 ZINC < 50.000 UG/L 5000 50 04-29-2014 108 2023/04 DUE NOW
CA4510007_005_005 INORGANIC-202505 1002 ALUMINUM < 50.000 UG/L 1000 50 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1005 ARSENIC < 2.000 UG/L 10 2 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1010 BARIUM < 100.000 UG/L 1000 100 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1015 CADMIUM < 1.000 UG/L 5 1 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1020 CHROMIUM < 10.000 UG/L 50 10 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1025 FLUORIDE 0.120 0.100 MG/L 2 .1 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1035 MERCURY < 1.000 UG/L 2 1 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1036 NICKEL < 10.000 UG/L 100 10 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202506 1039 PERCHLORATE < 0.500 UG/L 6 2 06-20-2022 36 2025/06
CA4510007_005_005 INORGANIC-202505 1045 SELENIUM < 5.000 UG/L 50 5 05-24-2016 108 2025/05
CA4510007_005_005 INORGANIC-202505 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-24-2016 108 2025/05
CA4510007_005_005 NITRATE/NITRITE-202306 1040 NITRATE 0.490 0.050 MG/L 10 .4 06-20-2022 12 2023/06 DUE NOW
CA4510007_005_005 NITRATE/NITRITE-202306 1041 NITRITE < 0.400 MG/L 1 .4 06-12-2020 36 2023/06 DUE NOW
CA4510007_005_005 RADIOLOGICAL-203106 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 06-20-2022 108 2031/06
CA4510007_005_005 RADIOLOGICAL-202601 4030 RADIUM-228 0.220 +/- 0.130 0.500 PCI/L 1 01-18-2017 108 2026/01
CA4510007_005_005 REGULATED VOC-202612 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2990 BENZENE < 0.500 UG/L 1 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2996 STYRENE < 0.500 UG/L 100 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2991 TOLUENE < 0.500 UG/L 150 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 12-16-2020 72 2026/12
CA4510007_005_005 REGULATED VOC-202612 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 12-16-2020 72 2026/12
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.