Date:05-10-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5510005SYSTEM NAME:TWAIN HARTE COMMUNITY SERVICES DISTRICTCOUNTY:TUOLUMNE 
SOURCE NO.:006SOURCE NAME:WELL NO. 2SOURCE CLASS:CTGDSTATUS: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
CA5510005_006_006 SECONDARY/GP-202407 1928 ALKALINITY, BICARBONATE 190.000 MG/L 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202507 1919 CALCIUM 27.900 1.500 MG/L 07-19-2022 36 2025/07
CA5510005_006_006 SECONDARY/GP-202407 1929 ALKALINITY, CARBONATE < MG/L 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1017 CHLORIDE 1.600 MG/L 500 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202610 1905 COLOR < 1.000 UNITS 15 10-05-2023 36 2026/10
CA5510005_006_006 SECONDARY/GP-202407 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202501 1915 HARDNESS, TOTAL (AS CACO3) 100.000 0.410 MG/L 01-04-2022 36 2025/01
CA5510005_006_006 SECONDARY/GP-202407 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1028 IRON < 100.000 UG/L 300 100 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202501 1031 MAGNESIUM 6.200 0.100 MG/L 01-04-2022 36 2025/01
CA5510005_006_006 SECONDARY/GP-202705 1032 MANGANESE 82.500 20.000 UG/L 50 20 05-01-2024 36 2027/05
CA5510005_006_006 SECONDARY/GP-202407 1920 ODOR < 1.000 TON 3 1 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1925 PH 7.400 pH 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1050 SILVER < 10.000 UG/L 100 10 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1052 SODIUM 20.000 MG/L 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1064 CONDUCTIVITY @ 25 C UMHOS/CM 270.000 UMHO/CM 1600 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1055 SULFATE 1.400 0.500 MG/L 500 .5 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1930 TDS 180.000 MG/L 1000 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 0100 TURBIDITY 0.500 0.100 NTU 5 .1 07-22-2021 36 2024/07
CA5510005_006_006 SECONDARY/GP-202407 1095 ZINC < 50.000 UG/L 5000 50 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1002 ALUMINUM < 50.000 UG/L 1000 50 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1005 ARSENIC < 2.000 UG/L 10 2 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-203209 1094 ASBESTOS < 0.200 MFL 7 .2 09-29-2023 108 2032/09
CA5510005_006_006 INORGANIC-202407 1010 BARIUM < 100.000 UG/L 1000 100 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1015 CADMIUM < 1.000 UG/L 5 1 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1020 CHROMIUM < 10.000 UG/L 50 10 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1025 FLUORIDE < 0.100 MG/L 2 .1 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1035 MERCURY < 1.000 UG/L 2 1 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1036 NICKEL < 10.000 UG/L 100 10 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1039 PERCHLORATE < 2.000 UG/L 6 2 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1045 SELENIUM < 5.000 UG/L 50 5 07-22-2021 36 2024/07
CA5510005_006_006 INORGANIC-202407 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-22-2021 36 2024/07
CA5510005_006_006 NITRATE/NITRITE-202407 1040 NITRATE < 0.400 MG/L 10 .4 07-06-2023 12 2024/07
CA5510005_006_006 NITRATE/NITRITE-202407 1041 NITRITE < 0.400 MG/L 1 .4 07-22-2021 36 2024/07
CA5510005_006_006 RADIOLOGICAL-202610 4109 GROSS ALPHA PARTICLE ACTIVITY 18.000 +/- 0.950 0.321 PCI/L 15 3 10-06-2023 36 2026/10
CA5510005_006_006 REGULATED VOC-202407 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2990 BENZENE < 0.500 UG/L 1 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2996 STYRENE < 0.500 UG/L 100 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2991 TOLUENE < 0.500 UG/L 150 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED VOC-202407 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED SOC-202410 2414 1,2,3-TRICHLOROPROPANE < UG/L 0.005 10-15-2018 72 2024/10
CA5510005_006_006 REGULATED SOC-202407 2050 ATRAZINE < 0.500 UG/L 1 .5 07-02-2018 72 2024/07
CA5510005_006_006 REGULATED SOC-202407 2037 SIMAZINE < 1.000 UG/L 4 1 07-02-2018 72 2024/07
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.