Date:05-15-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4000203SYSTEM NAME:IRISH HILLS MUTUAL WATER COCOUNTY:SAN LUIS OBISPO 
SOURCE NO.:001SOURCE NAME:WELL ASOURCE 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
CA4000203_001_001 SECONDARY/GP-202511 1928 ALKALINITY, BICARBONATE 320.000 20.000 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1919 CALCIUM 35.000 0.100 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1929 ALKALINITY, CARBONATE < 20.000 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1017 CHLORIDE 120.000 4.000 MG/L 500 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1905 COLOR < 3.000 UNITS 15 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1022 COPPER, FREE < 2.000 UG/L 1000 50 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1915 HARDNESS, TOTAL (AS CACO3) 310.000 0.210 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1021 HYDROXIDE AS CALCIUM CARBONATE < 20.000 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202401 1028 IRON 450.000 50.000 UG/L 300 100 10-18-2023 3 2024/01 DUE NOW
CA4000203_001_001 SECONDARY/GP-202511 1031 MAGNESIUM 53.000 0.050 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1032 MANGANESE 15.000 10.000 UG/L 50 20 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1920 ODOR < 1.000 TON 3 1 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1925 PH 8.080 0.100 pH 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1050 SILVER < 1.000 UG/L 100 10 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1052 SODIUM 70.000 0.500 MG/L 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1064 CONDUCTIVITY @ 25 C UMHOS/CM 960.000 2.000 UMHO/CM 1600 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1055 SULFATE 26.000 4.000 MG/L 500 .5 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1930 TDS 510.000 10.000 MG/L 1000 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 0100 TURBIDITY 1.300 0.100 NTU 5 .1 11-21-2022 36 2025/11
CA4000203_001_001 SECONDARY/GP-202511 1095 ZINC < 10.000 UG/L 5000 50 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1002 ALUMINUM < 50.000 UG/L 1000 50 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1005 ARSENIC < 2.000 UG/L 10 2 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1010 BARIUM 67.000 20.000 UG/L 1000 100 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1015 CADMIUM < 1.000 UG/L 5 1 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1020 CHROMIUM < 3.000 UG/L 50 10 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1024 CYANIDE < 40.000 UG/L 150 100 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1025 FLUORIDE 0.980 0.100 MG/L 2 .1 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1030 LEAD < 1.000 UG/L 5 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1035 MERCURY < 0.200 UG/L 2 1 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1036 NICKEL < 2.000 UG/L 100 10 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1039 PERCHLORATE < 2.000 UG/L 6 2 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1045 SELENIUM 1.000 1.000 UG/L 50 5 11-21-2022 36 2025/11
CA4000203_001_001 INORGANIC-202511 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 11-21-2022 36 2025/11
CA4000203_001_001 NITRATE/NITRITE-202407 1040 NITRATE < 0.400 MG/L 10 .4 07-26-2023 12 2024/07
CA4000203_001_001 NITRATE/NITRITE-202511 1038 NITRATE-NITRITE < 0.400 MG/L 10 .4 11-21-2022 36 2025/11
CA4000203_001_001 NITRATE/NITRITE-202511 1041 NITRITE < 0.400 MG/L 1 .4 11-21-2022 36 2025/11
CA4000203_001_001 RADIOLOGICAL-202812 4109 GROSS ALPHA PARTICLE ACTIVITY 0.457 +/- 1.270 1.900 PCI/L 15 3 12-16-2019 108 2028/12
CA4000203_001_001 REGULATED VOC-202512 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2990 BENZENE < 0.500 UG/L 1 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2996 STYRENE < 0.500 UG/L 100 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2991 TOLUENE < 0.500 UG/L 150 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED VOC-202512 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 12-16-2019 72 2025/12
CA4000203_001_001 REGULATED SOC-202612 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 12-19-2023 36 2026/12
CA4000203_001_001 REGULATED SOC-202812 2050 ATRAZINE < 0.500 UG/L 1 .5 12-16-2019 108 2028/12
CA4000203_001_001 REGULATED SOC-202812 2037 SIMAZINE < 1.000 UG/L 4 1 12-16-2019 108 2028/12
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.