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.:010SOURCE NAME:WELL 05SOURCE CLASS:L100STATUS: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_010_010 SECONDARY/GP-202506 1928 ALKALINITY, BICARBONATE 48.000 3.000 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1919 CALCIUM 18.000 0.100 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1929 ALKALINITY, CARBONATE < 3.000 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1017 CHLORIDE 77.000 1.000 MG/L 500 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1905 COLOR 5.000 5.000 UNITS 15 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1022 COPPER, FREE < 5.000 UG/L 1000 50 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1915 HARDNESS, TOTAL (AS CACO3) 110.000 0.410 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1028 IRON < 30.000 UG/L 300 100 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1031 MAGNESIUM 16.000 0.100 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1032 MANGANESE < 10.000 UG/L 50 20 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1920 ODOR < 1.000 TON 3 1 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1925 PH 7.700 pH 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1050 SILVER < 10.000 UG/L 100 10 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1052 SODIUM 40.000 1.000 MG/L 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1064 CONDUCTIVITY @ 25 C UMHOS/CM 450.000 1.000 UMHO/CM 1600 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1055 SULFATE 12.000 1.000 MG/L 500 .5 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1930 TDS 310.000 5.000 MG/L 1000 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 0100 TURBIDITY 0.790 0.100 NTU 5 .1 06-22-2022 36 2025/06
CA4000523_010_010 SECONDARY/GP-202506 1095 ZINC < 50.000 UG/L 5000 50 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1002 ALUMINUM 55.000 50.000 UG/L 1000 50 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1005 ARSENIC < 2.000 UG/L 10 2 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1010 BARIUM < 50.000 UG/L 1000 100 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1015 CADMIUM < 1.000 UG/L 5 1 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1020 CHROMIUM < 10.000 UG/L 50 10 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1024 CYANIDE < 5.000 UG/L 150 100 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1025 FLUORIDE < 0.100 MG/L 2 .1 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1030 LEAD < 1.000 UG/L 5 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1035 MERCURY < 0.200 UG/L 2 1 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1036 NICKEL < 10.000 UG/L 100 10 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1039 PERCHLORATE < 0.500 UG/L 6 2 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1045 SELENIUM < 2.000 UG/L 50 5 06-22-2022 36 2025/06
CA4000523_010_010 INORGANIC-202506 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 06-22-2022 36 2025/06
CA4000523_010_010 NITRATE/NITRITE-202406 1040 NITRATE 7.600 0.400 MG/L 10 .4 03-25-2024 3 2024/06
CA4000523_010_010 NITRATE/NITRITE-202506 1038 NITRATE-NITRITE 6.800 0.230 MG/L 10 .4 06-22-2022 36 2025/06
CA4000523_010_010 NITRATE/NITRITE-202506 1041 NITRITE < 0.050 MG/L 1 .4 06-22-2022 36 2025/06
CA4000523_010_010 RADIOLOGICAL-202208 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.200 PCI/L 15 3 08-12-2013 108 2022/08 DUE NOW
CA4000523_010_010 REGULATED VOC-202505 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2990 BENZENE < 0.500 UG/L 1 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2996 STYRENE < 0.500 UG/L 100 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2991 TOLUENE < 0.500 UG/L 150 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED VOC-202505 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 05-29-2019 72 2025/05
CA4000523_010_010 REGULATED SOC-202506 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 06-22-2022 36 2025/06
CA4000523_010_010 REGULATED SOC-203302 2050 ATRAZINE < 0.500 UG/L 1 .5 02-01-2024 108 2033/02
CA4000523_010_010 REGULATED SOC-203302 2037 SIMAZINE < 1.000 UG/L 4 1 02-01-2024 108 2033/02
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.