Date:05-16-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4900817SYSTEM NAME:CASA DEL MARCOUNTY:SONOMA 
SOURCE NO.:All SourcesSOURCE NAME:N/ASOURCE CLASS:N/ASTATUS:N/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
CA4900817_002_002 INORGANIC-203109 1002 ALUMINUM < 50.000 UG/L 1000 50 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-202602 1005 ARSENIC 8.200 2.000 UG/L 10 2 02-14-2023 36 2026/02
CA4900817_002_002 INORGANIC-202509 1094 ASBESTOS < 0.200 MFL 7 .2 09-13-2016 108 2025/09
CA4900817_002_002 INORGANIC-203109 1010 BARIUM 130.000 100.000 UG/L 1000 100 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1015 CADMIUM < 1.000 UG/L 5 1 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1020 CHROMIUM < 10.000 UG/L 50 10 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1025 FLUORIDE < 0.100 MG/L 2 .1 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1035 MERCURY < 1.000 UG/L 2 1 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1036 NICKEL < 10.000 UG/L 100 10 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-202412 1039 PERCHLORATE < 2.000 UG/L 6 2 12-08-2021 36 2024/12
CA4900817_002_002 INORGANIC-203109 1045 SELENIUM < 5.000 UG/L 50 5 09-09-2022 108 2031/09
CA4900817_002_002 INORGANIC-203109 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 09-09-2022 108 2031/09
CA4900817_002_002 NITRATE/NITRITE-202504 1040 NITRATE < 0.400 MG/L 10 .4 04-11-2024 12 2025/04
CA4900817_002_002 NITRATE/NITRITE-202504 1041 NITRITE < 0.200 MG/L 1 .4 04-14-2022 36 2025/04
CA4900817_002_002 RADIOLOGICAL-202509 4109 GROSS ALPHA PARTICLE ACTIVITY 1.330 +/- 1.420 1.600 PCI/L 15 3 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED VOC-202509 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2990 BENZENE < 0.500 UG/L 1 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2996 STYRENE < 0.500 UG/L 100 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2991 TOLUENE < 0.500 UG/L 150 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED VOC-202509 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 09-20-2019 72 2025/09
CA4900817_002_002 REGULATED SOC-203109 2110 2,4,5-TP < 1.000 UG/L 50 1 09-09-2022 108 2031/09
CA4900817_002_002 REGULATED SOC-203109 2105 2,4-D < 10.000 UG/L 70 10 09-09-2022 108 2031/09
CA4900817_002_002 REGULATED SOC-202509 2050 ATRAZINE < 0.500 UG/L 1 .5 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2046 CARBOFURAN < 5.000 UG/L 18 5 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2031 DALAPON < 10.000 UG/L 200 10 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2041 DINOSEB < 2.000 UG/L 7 2 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2032 DIQUAT < 4.000 UG/L 20 4 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202210 2033 ENDOTHALL < 45.000 UG/L 100 45 10-18-2019 36 2022/10 DUE NOW
CA4900817_002_002 REGULATED SOC-202509 2946 ETHYLENE DIBROMIDE < UG/L .05 .02 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED SOC-202509 2065 HEPTACHLOR < UG/L .01 .01 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED SOC-202509 2067 HEPTACHLOR EPOXIDE < UG/L .01 .01 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED SOC-202509 2010 BHC-GAMMA < 0.200 UG/L .2 .2 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED SOC-202509 2015 METHOXYCHLOR < 10.000 UG/L 30 10 09-13-2016 108 2025/09
CA4900817_002_002 REGULATED SOC-202509 2036 OXAMYL < 20.000 UG/L 50 20 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2040 PICLORAM < 1.000 UG/L 500 1 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2037 SIMAZINE < 1.000 UG/L 4 1 09-09-2022 36 2025/09
CA4900817_002_002 REGULATED SOC-202509 2020 TOXAPHENE < 1.000 UG/L 3 1 09-13-2016 108 2025/09
CA4900817_DST_004 DISINFECTION BYPRODUCTS-202608 2456 TOTAL HALOACETIC ACIDS (HAA5) < 1.000 UG/L 60 08-02-2023 36 2026/08
CA4900817_DST_004 DISINFECTION BYPRODUCTS-202608 2950 TTHM 2.990 1.000 UG/L 80 08-02-2023 36 2026/08
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.