Date:05-15-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5510008SYSTEM NAME:LAKE DON PEDRO CSDCOUNTY:TUOLUMNE 
SOURCE NO.:002SOURCE NAME:RANCHITO WELL NO. 1SOURCE CLASS:NCLGDSTATUS: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
CA5510008_002_002 SECONDARY/GP-202611 1928 ALKALINITY, BICARBONATE 201.000 1.000 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1919 CALCIUM 36.100 1.500 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1929 ALKALINITY, CARBONATE < 1.000 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1017 CHLORIDE 7.080 1.000 MG/L 500 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1905 COLOR < 1.000 UNITS 15 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1022 COPPER, FREE < 50.000 UG/L 1000 50 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1915 HARDNESS, TOTAL (AS CACO3) 155.000 1.000 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1028 IRON 482.000 100.000 UG/L 300 100 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1031 MAGNESIUM 15.700 1.500 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1032 MANGANESE 219.000 20.000 UG/L 50 20 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1920 ODOR 2.000 1.000 TON 3 1 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1925 PH 7.540 0.010 pH 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1050 SILVER < 10.000 UG/L 100 10 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1052 SODIUM 35.000 2.000 MG/L 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1064 CONDUCTIVITY @ 25 C UMHOS/CM 705.000 1.000 UMHO/CM 1600 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1055 SULFATE 67.000 1.000 MG/L 500 .5 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1930 TDS 380.000 1.000 MG/L 1000 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 0100 TURBIDITY 4.050 0.020 NTU 5 .1 11-28-2023 36 2026/11
CA5510008_002_002 SECONDARY/GP-202611 1095 ZINC < 50.000 UG/L 5000 50 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1002 ALUMINUM < 50.000 UG/L 1000 50 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1005 ARSENIC 5.030 2.000 UG/L 10 2 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202912 1094 ASBESTOS < 0.200 MFL 7 .2 12-08-2020 108 2029/12
CA5510008_002_002 INORGANIC-202611 1010 BARIUM < 100.000 UG/L 1000 100 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1015 CADMIUM < 1.000 UG/L 5 1 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1020 CHROMIUM < 10.000 UG/L 50 10 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1025 FLUORIDE 0.709 0.100 MG/L 2 .1 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1035 MERCURY < 1.000 UG/L 2 1 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1036 NICKEL < 10.000 UG/L 100 10 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202612 1039 PERCHLORATE < 2.000 UG/L 6 2 12-12-2023 36 2026/12
CA5510008_002_002 INORGANIC-202611 1045 SELENIUM < 5.000 UG/L 50 5 11-28-2023 36 2026/11
CA5510008_002_002 INORGANIC-202611 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 11-28-2023 36 2026/11
CA5510008_002_002 NITRATE/NITRITE-202411 1040 NITRATE < 0.400 MG/L 10 .4 11-28-2023 12 2024/11
CA5510008_002_002 NITRATE/NITRITE-202611 1041 NITRITE < 0.400 MG/L 1 .4 11-28-2023 36 2026/11
CA5510008_002_002 RADIOLOGICAL-203012 4109 GROSS ALPHA PARTICLE ACTIVITY 1.620 +/- 1.180 1.340 PCI/L 15 3 12-08-2021 108 2030/12
CA5510008_002_002 REGULATED VOC-202411 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2990 BENZENE < 0.500 UG/L 1 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2996 STYRENE < 0.500 UG/L 100 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2991 TOLUENE < 0.500 UG/L 150 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED VOC-202411 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 11-28-2023 12 2024/11
CA5510008_002_002 REGULATED SOC-202412 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 12-08-2021 36 2024/12
CA5510008_002_002 REGULATED SOC-202612 2050 ATRAZINE < 0.500 UG/L 1 .5 12-12-2023 36 2026/12
CA5510008_002_002 REGULATED SOC-202612 2037 SIMAZINE < 1.000 UG/L 4 1 12-12-2023 36 2026/12
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.