Date:05-16-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4900575SYSTEM NAME:LOCH HAVEN MUTUAL WATER COMPANYCOUNTY:SONOMA 
SOURCE NO.:002SOURCE NAME:WELL 02 - ACTIVESOURCE CLASS:CTGASTATUS: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
CA4900575_002_002 SECONDARY/GP-202605 1928 ALKALINITY, BICARBONATE 140.000 5.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1919 CALCIUM 19.000 1.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1929 ALKALINITY, CARBONATE < 5.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1017 CHLORIDE 11.000 0.500 MG/L 500 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1905 COLOR < 5.000 UNITS 15 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 05-09-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1915 HARDNESS, TOTAL (AS CACO3) 108.000 5.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1028 IRON 320.000 100.000 UG/L 300 100 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1031 MAGNESIUM 14.000 1.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202406 1032 MANGANESE 550.000 20.000 UG/L 50 20 03-04-2024 3 2024/06
CA4900575_002_002 SECONDARY/GP-202605 1920 ODOR 2.000 1.000 TON 3 1 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1925 PH 7.340 1.000 pH 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1050 SILVER < 10.000 UG/L 100 10 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1052 SODIUM 12.000 1.000 MG/L 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1064 CONDUCTIVITY @ 25 C UMHOS/CM 300.000 10.000 UMHO/CM 1600 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1055 SULFATE 4.400 0.500 MG/L 500 .5 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1930 TDS 240.000 10.000 MG/L 1000 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 0100 TURBIDITY < 1.000 NTU 5 .1 05-04-2023 36 2026/05
CA4900575_002_002 SECONDARY/GP-202605 1095 ZINC < 50.000 UG/L 5000 50 05-04-2023 36 2026/05
CA4900575_002_002 INORGANIC-203008 1002 ALUMINUM < 50.000 UG/L 1000 50 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-202406 1005 ARSENIC 32.000 2.000 UG/L 10 2 03-04-2024 3 2024/06
CA4900575_002_002 INORGANIC-202709 1094 ASBESTOS < 0.200 MFL 7 .2 09-12-2018 108 2027/09
CA4900575_002_002 INORGANIC-203008 1010 BARIUM 210.000 100.000 UG/L 1000 100 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1015 CADMIUM < 1.000 UG/L 5 1 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1020 CHROMIUM < 10.000 UG/L 50 10 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1025 FLUORIDE < 0.100 MG/L 2 .1 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1035 MERCURY < 0.200 UG/L 2 1 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1036 NICKEL < 10.000 UG/L 100 10 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-202605 1039 PERCHLORATE < 2.000 UG/L 6 2 05-04-2023 36 2026/05
CA4900575_002_002 INORGANIC-203008 1045 SELENIUM < 5.000 UG/L 50 5 08-10-2021 108 2030/08
CA4900575_002_002 INORGANIC-203008 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 08-10-2021 108 2030/08
CA4900575_002_002 NITRATE/NITRITE-202405 1040 NITRATE < 0.400 MG/L 10 .4 05-04-2023 12 2024/05 DUE NOW
CA4900575_002_002 NITRATE/NITRITE-202605 1041 NITRITE < 0.200 MG/L 1 .4 05-04-2023 36 2026/05
CA4900575_002_002 RADIOLOGICAL-202605 4109 GROSS ALPHA PARTICLE ACTIVITY 3.000 +/- 0.997 1.000 PCI/L 15 3 05-22-2017 108 2026/05
CA4900575_002_002 REGULATED VOC-202408 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2990 BENZENE < 0.500 UG/L 1 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202409 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-14-2021 36 2024/09
CA4900575_002_002 REGULATED VOC-202408 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2996 STYRENE < 0.500 UG/L 100 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2991 TOLUENE < 0.500 UG/L 150 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED VOC-202408 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 08-21-2018 72 2024/08
CA4900575_002_002 REGULATED SOC-203205 2110 2,4,5-TP < 1.000 UG/L 50 1 05-04-2023 108 2032/05
CA4900575_002_002 REGULATED SOC-203205 2105 2,4-D < 10.000 UG/L 70 10 05-04-2023 108 2032/05
CA4900575_002_002 REGULATED SOC-202605 2050 ATRAZINE < 0.500 UG/L 1 .5 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2046 CARBOFURAN < 5.000 UG/L 18 5 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2031 DALAPON < 10.000 UG/L 200 10 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2041 DINOSEB < 2.000 UG/L 7 2 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2032 DIQUAT < 4.000 UG/L 20 4 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2033 ENDOTHALL < 45.000 UG/L 100 45 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202709 2946 ETHYLENE DIBROMIDE < UG/L .05 .02 09-12-2018 108 2027/09
CA4900575_002_002 REGULATED SOC-202709 2065 HEPTACHLOR < UG/L .01 .01 09-12-2018 108 2027/09
CA4900575_002_002 REGULATED SOC-202709 2067 HEPTACHLOR EPOXIDE < UG/L .01 .01 09-12-2018 108 2027/09
CA4900575_002_002 REGULATED SOC-202709 2010 BHC-GAMMA < 0.200 UG/L .2 .2 09-12-2018 108 2027/09
CA4900575_002_002 REGULATED SOC-202709 2015 METHOXYCHLOR < 10.000 UG/L 30 10 09-12-2018 108 2027/09
CA4900575_002_002 REGULATED SOC-202605 2036 OXAMYL < 20.000 UG/L 50 20 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2040 PICLORAM < 1.000 UG/L 500 1 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202605 2037 SIMAZINE < 1.000 UG/L 4 1 05-04-2023 36 2026/05
CA4900575_002_002 REGULATED SOC-202709 2020 TOXAPHENE < 1.000 UG/L 3 1 09-12-2018 108 2027/09
CA4900575_002_002 GENERAL NON CHAP 15-202605 1927 ALKALINITY, TOTAL 140.000 5.000 MG/L 05-04-2023 36 2026/05
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.