Date:05-14-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4000523SYSTEM NAME:S & T MUTUAL WATER COMPANYCOUNTY:SAN LUIS OBISPO 
SOURCE NO.:001SOURCE NAME:WELL 01 - STANDBYSOURCE CLASS:STBYSTATUS: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
CA4000523_001_001 SECONDARY/GP-203010 1928 ALKALINITY, BICARBONATE 56.000 3.000 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1919 CALCIUM 19.000 0.100 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1929 ALKALINITY, CARBONATE < 3.000 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203211 1017 CHLORIDE 83.000 8.000 MG/L 500 11-19-2023 108 2032/11
CA4000523_001_001 SECONDARY/GP-203010 1905 COLOR < 5.000 UNITS 15 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1022 COPPER, FREE < 5.000 UG/L 1000 50 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1915 HARDNESS, TOTAL (AS CACO3) 100.000 0.410 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1028 IRON 110.000 30.000 UG/L 300 100 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1031 MAGNESIUM 14.000 0.100 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1032 MANGANESE < 10.000 UG/L 50 20 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1920 ODOR < 1.000 TON 3 1 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1925 PH 7.000 pH 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1050 SILVER < 10.000 UG/L 100 10 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1052 SODIUM 48.000 1.000 MG/L 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1064 CONDUCTIVITY @ 25 C UMHOS/CM 460.000 1.000 UMHO/CM 1600 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1055 SULFATE 5.400 1.000 MG/L 500 .5 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1930 TDS 300.000 5.000 MG/L 1000 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 0100 TURBIDITY 0.580 0.100 NTU 5 .1 10-11-2021 108 2030/10
CA4000523_001_001 SECONDARY/GP-203010 1095 ZINC < 50.000 UG/L 5000 50 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1002 ALUMINUM < 50.000 UG/L 1000 50 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1005 ARSENIC < 2.000 UG/L 10 2 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1010 BARIUM < 50.000 UG/L 1000 100 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1015 CADMIUM < 1.000 UG/L 5 1 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1020 CHROMIUM < 10.000 UG/L 50 10 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1024 CYANIDE < 5.000 UG/L 150 100 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1025 FLUORIDE < 0.100 MG/L 2 .1 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1030 LEAD < 1.000 UG/L 5 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1035 MERCURY < 0.200 UG/L 2 1 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1036 NICKEL < 10.000 UG/L 100 10 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-202611 1039 PERCHLORATE < 4.000 UG/L 6 4 11-13-2017 108 2026/11
CA4000523_001_001 INORGANIC-203010 1045 SELENIUM < 2.000 UG/L 50 5 10-11-2021 108 2030/10
CA4000523_001_001 INORGANIC-203010 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 10-11-2021 108 2030/10
CA4000523_001_001 NITRATE/NITRITE-202411 1040 NITRATE 16.000 0.400 MG/L 10 .4 11-19-2023 12 2024/11
CA4000523_001_001 NITRATE/NITRITE-203010 1041 NITRITE < 0.050 MG/L 1 .4 10-11-2021 108 2030/10
CA4000523_001_001 RADIOLOGICAL-203211 4109 GROSS ALPHA PARTICLE ACTIVITY < 2.780 PCI/L 15 3 11-19-2023 108 2032/11
CA4000523_001_001 REGULATED VOC-202611 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2990 BENZENE < 0.500 UG/L 1 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2996 STYRENE < 0.500 UG/L 100 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2991 TOLUENE < 0.500 UG/L 150 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED VOC-202611 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 11-13-2017 108 2026/11
CA4000523_001_001 REGULATED SOC-202506 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 06-22-2022 36 2025/06
CA4000523_001_001 REGULATED SOC-203211 2050 ATRAZINE < 0.500 UG/L 1 .5 11-19-2023 108 2032/11
CA4000523_001_001 REGULATED SOC-203211 2037 SIMAZINE < 1.000 UG/L 4 1 11-19-2023 108 2032/11
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.