Date:05-16-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:2600538SYSTEM NAME:LOWER ROCK CREEK MUTUAL WATER CO.COUNTY:MONO 
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
CA2600538_001_001 SECONDARY/GP-202607 1928 ALKALINITY, BICARBONATE 55.000 5.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1919 CALCIUM 5.700 1.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1929 ALKALINITY, CARBONATE < 5.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1017 CHLORIDE 1.300 1.000 MG/L 500 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1905 COLOR < 3.000 UNITS 15 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 2905 FOAMING AGENTS (SURFACTANTS) < 0.080 MG/L .5 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1915 HARDNESS, TOTAL (AS CACO3) 17.000 1.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1028 IRON 390.000 50.000 UG/L 300 100 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1031 MAGNESIUM < 1.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1032 MANGANESE 30.000 10.000 UG/L 50 20 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1920 ODOR < 1.000 TON 3 1 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1925 PH 6.500 1.000 pH 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1050 SILVER < 10.000 UG/L 100 10 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1052 SODIUM 8.500 1.000 MG/L 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1064 CONDUCTIVITY @ 25 C UMHOS/CM 75.000 1.000 UMHO/CM 1600 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1055 SULFATE 3.400 0.500 MG/L 500 .5 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1930 TDS 63.000 10.000 MG/L 1000 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 0100 TURBIDITY 2.900 0.100 NTU 5 .1 07-05-2023 36 2026/07
CA2600538_001_001 SECONDARY/GP-202607 1095 ZINC 110.000 20.000 UG/L 5000 50 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1002 ALUMINUM < 50.000 UG/L 1000 50 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1005 ARSENIC < 2.000 UG/L 10 2 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1010 BARIUM < 10.000 UG/L 1000 100 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1015 CADMIUM < 1.000 UG/L 5 1 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1020 CHROMIUM < 10.000 UG/L 50 10 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1024 CYANIDE < 100.000 UG/L 150 100 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1025 FLUORIDE 0.140 0.100 MG/L 2 .1 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1035 MERCURY < 0.200 UG/L 2 1 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1036 NICKEL 24.000 10.000 UG/L 100 10 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1039 PERCHLORATE < 2.000 UG/L 6 2 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1045 SELENIUM < 5.000 UG/L 50 5 07-05-2023 36 2026/07
CA2600538_001_001 INORGANIC-202607 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-05-2023 36 2026/07
CA2600538_001_001 NITRATE/NITRITE-202407 1040 NITRATE < 0.200 MG/L 10 .4 07-05-2023 12 2024/07
CA2600538_001_001 NITRATE/NITRITE-202607 1041 NITRITE < 0.100 MG/L 1 .4 07-05-2023 36 2026/07
CA2600538_001_001 RADIOLOGICAL-202607 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.280 PCI/L 15 3 07-05-2023 36 2026/07
CA2600538_001_001 REGULATED VOC-202910 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2990 BENZENE < 0.500 UG/L 1 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2996 STYRENE < 0.500 UG/L 100 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2991 TOLUENE < 0.500 UG/L 150 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED VOC-202910 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 10-18-2023 72 2029/10
CA2600538_001_001 REGULATED SOC-202610 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 10-18-2023 36 2026/10
CA2600538_001_001 REGULATED SOC-202607 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 07-05-2023 36 2026/07
CA2600538_001_001 REGULATED SOC-202607 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 07-05-2023 36 2026/07
CA2600538_003_003 SECONDARY/GP-202509 1928 ALKALINITY, BICARBONATE 63.000 5.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1919 CALCIUM 5.400 1.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1929 ALKALINITY, CARBONATE < 5.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1017 CHLORIDE < 1.000 MG/L 500 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1905 COLOR < 3.000 UNITS 15 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1022 COPPER, FREE < 10.000 UG/L 1000 50 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 2905 FOAMING AGENTS (SURFACTANTS) < 0.080 MG/L .5 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1915 HARDNESS, TOTAL (AS CACO3) 14.000 1.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202607 1028 IRON < 50.000 UG/L 300 100 07-05-2023 36 2026/07
CA2600538_003_003 SECONDARY/GP-202509 1031 MAGNESIUM < 1.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1032 MANGANESE < 10.000 UG/L 50 20 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202607 1920 ODOR < 1.000 TON 3 1 07-05-2023 36 2026/07
CA2600538_003_003 SECONDARY/GP-202509 1925 PH 7.700 1.000 pH 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1050 SILVER < 10.000 UG/L 100 10 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1052 SODIUM 10.000 1.000 MG/L 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1064 CONDUCTIVITY @ 25 C UMHOS/CM 70.000 1.000 UMHO/CM 1600 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1055 SULFATE 3.000 0.500 MG/L 500 .5 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1930 TDS 77.000 10.000 MG/L 1000 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 0100 TURBIDITY 0.150 0.100 NTU 5 .1 09-21-2022 36 2025/09
CA2600538_003_003 SECONDARY/GP-202509 1095 ZINC 33.000 20.000 UG/L 5000 50 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1002 ALUMINUM < 50.000 UG/L 1000 50 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1005 ARSENIC < 2.000 UG/L 10 2 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1010 BARIUM < 10.000 UG/L 1000 100 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1015 CADMIUM < 1.000 UG/L 5 1 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1020 CHROMIUM < 1.000 UG/L 50 10 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1024 CYANIDE < 100.000 UG/L 150 100 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1025 FLUORIDE 0.160 0.100 MG/L 2 .1 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1035 MERCURY < 0.200 UG/L 2 1 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1036 NICKEL < 10.000 UG/L 100 10 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1039 PERCHLORATE < 2.000 UG/L 6 2 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1045 SELENIUM < 5.000 UG/L 50 5 09-21-2022 36 2025/09
CA2600538_003_003 INORGANIC-202509 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 09-21-2022 36 2025/09
CA2600538_003_003 NITRATE/NITRITE-202410 1040 NITRATE < 0.200 MG/L 10 .4 10-18-2023 12 2024/10
CA2600538_003_003 NITRATE/NITRITE-202509 1041 NITRITE < 0.100 MG/L 1 .4 09-21-2022 36 2025/09
CA2600538_003_003 RADIOLOGICAL-202509 4109 GROSS ALPHA PARTICLE ACTIVITY 1.720 +/- 1.170 1.050 PCI/L 15 3 09-21-2022 36 2025/09
CA2600538_003_003 REGULATED VOC-202809 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2990 BENZENE < 0.500 UG/L 1 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2996 STYRENE < 0.500 UG/L 100 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2991 TOLUENE < 0.500 UG/L 150 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED VOC-202809 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 09-21-2022 72 2028/09
CA2600538_003_003 REGULATED SOC-202509 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 09-21-2022 36 2025/09
CA2600538_003_003 REGULATED SOC-202509 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 09-21-2022 36 2025/09
CA2600538_003_003 REGULATED SOC-202509 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 09-21-2022 36 2025/09
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.