Date:05-13-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4910012SYSTEM NAME:SONOMA, CITY OFCOUNTY:SONOMA 
SOURCE NO.:001SOURCE NAME:WELL 01SOURCE CLASS:CLGASTATUS: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
CA4910012_001_001 SECONDARY/GP-202601 1928 ALKALINITY, BICARBONATE 100.000 10.000 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1919 CALCIUM 13.000 0.500 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1929 ALKALINITY, CARBONATE < 10.000 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1017 CHLORIDE 8.700 5.000 MG/L 500 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1905 COLOR < 3.000 UNITS 15 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1022 COPPER, FREE < 50.000 UG/L 1000 50 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1915 HARDNESS, TOTAL (AS CACO3) 64.300 3.310 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1021 HYDROXIDE AS CALCIUM CARBONATE < 10.000 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1028 IRON < 30.000 UG/L 300 100 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1031 MAGNESIUM 7.710 0.500 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1032 MANGANESE < 20.000 UG/L 50 20 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1920 ODOR < 1.000 TON 3 1 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1925 PH 6.600 pH 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1050 SILVER < 10.000 UG/L 100 10 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1052 SODIUM 27.000 1.000 MG/L 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1064 CONDUCTIVITY @ 25 C UMHOS/CM 260.000 10.000 UMHO/CM 1600 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1055 SULFATE 8.200 2.500 MG/L 500 .5 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1930 TDS 232.000 10.000 MG/L 1000 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 0100 TURBIDITY 0.200 0.100 NTU 5 .1 01-03-2023 36 2026/01
CA4910012_001_001 SECONDARY/GP-202601 1095 ZINC 83.000 50.000 UG/L 5000 50 01-03-2023 36 2026/01
CA4910012_001_001 INORGANIC-202901 1002 ALUMINUM < 50.000 UG/L 1000 50 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202409 1005 ARSENIC 7.300 2.000 UG/L 10 2 09-05-2023 12 2024/09
CA4910012_001_001 INORGANIC-202604 1094 ASBESTOS < 0.200 MFL 7 .2 04-04-2017 108 2026/04
CA4910012_001_001 INORGANIC-202901 1010 BARIUM 6.400 100.000 UG/L 1000 100 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1015 CADMIUM < 1.000 UG/L 5 1 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1020 CHROMIUM 0.850 10.000 UG/L 50 10 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1025 FLUORIDE 0.430 0.100 MG/L 2 .1 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1035 MERCURY < 1.000 UG/L 2 1 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1036 NICKEL < 10.000 UG/L 100 10 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202601 1039 PERCHLORATE < 2.000 UG/L 6 2 01-03-2023 36 2026/01
CA4910012_001_001 INORGANIC-202901 1045 SELENIUM < 5.000 UG/L 50 5 01-09-2020 108 2029/01
CA4910012_001_001 INORGANIC-202901 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 01-09-2020 108 2029/01
CA4910012_001_001 NITRATE/NITRITE-202409 1040 NITRATE 1.600 0.100 MG/L 10 .4 09-05-2023 12 2024/09
CA4910012_001_001 NITRATE/NITRITE-202601 1041 NITRITE < 0.400 MG/L 1 .4 01-03-2023 36 2026/01
CA4910012_001_001 RADIOLOGICAL-202510 4109 GROSS ALPHA PARTICLE ACTIVITY < PCI/L 15 3 10-12-2016 108 2025/10
CA4910012_001_001 REGULATED VOC-202904 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2990 BENZENE < 0.500 UG/L 1 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202604 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 04-11-2023 36 2026/04
CA4910012_001_001 REGULATED VOC-202904 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2996 STYRENE < 0.500 UG/L 100 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2991 TOLUENE < 0.500 UG/L 150 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED VOC-202904 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 04-11-2023 72 2029/04
CA4910012_001_001 REGULATED SOC-202410 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 10-14-2021 36 2024/10
CA4910012_001_001 REGULATED SOC-203201 2110 2,4,5-TP < 0.200 UG/L 50 1 01-03-2023 108 2032/01
CA4910012_001_001 REGULATED SOC-203201 2105 2,4-D < 0.400 UG/L 70 10 01-03-2023 108 2032/01
CA4910012_001_001 REGULATED SOC-202601 2050 ATRAZINE < 0.100 UG/L 1 .5 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2046 CARBOFURAN < 2.000 UG/L 18 5 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2031 DALAPON < 0.400 UG/L 200 10 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2041 DINOSEB < 0.400 UG/L 7 2 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2032 DIQUAT < 4.000 UG/L 20 4 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2033 ENDOTHALL < 45.000 UG/L 100 45 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202402 2946 ETHYLENE DIBROMIDE < UG/L .05 .02 02-24-2015 108 2024/02 DUE NOW
CA4910012_001_001 REGULATED SOC-202604 2065 HEPTACHLOR < UG/L .01 .01 04-04-2017 108 2026/04
CA4910012_001_001 REGULATED SOC-202604 2067 HEPTACHLOR EPOXIDE < UG/L .01 .01 04-04-2017 108 2026/04
CA4910012_001_001 REGULATED SOC-202604 2010 BHC-GAMMA < 0.200 UG/L .2 .2 04-04-2017 108 2026/04
CA4910012_001_001 REGULATED SOC-202604 2015 METHOXYCHLOR < 10.000 UG/L 30 10 04-04-2017 108 2026/04
CA4910012_001_001 REGULATED SOC-202601 2036 OXAMYL < 2.000 UG/L 50 20 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2040 PICLORAM < 0.600 UG/L 500 1 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202601 2037 SIMAZINE < 0.100 UG/L 4 1 01-03-2023 36 2026/01
CA4910012_001_001 REGULATED SOC-202604 2020 TOXAPHENE < 1.000 UG/L 3 1 04-04-2017 108 2026/04
CA4910012_001_001 GENERAL NON CHAP 15-202601 1927 ALKALINITY, TOTAL 100.000 10.000 MG/L 01-03-2023 36 2026/01
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.