Date:05-10-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5510005SYSTEM NAME:TWAIN HARTE COMMUNITY SERVICES DISTRICTCOUNTY:TUOLUMNE 
SOURCE NO.:004SOURCE NAME:WELL NO. 1SOURCE 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_004_004 SECONDARY/GP-202607 1928 ALKALINITY, BICARBONATE 109.000 1.000 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1919 CALCIUM 25.200 1.500 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1929 ALKALINITY, CARBONATE < 1.000 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1017 CHLORIDE 3.940 1.000 MG/L 500 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1905 COLOR < 1.000 UNITS 15 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 07-05-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1915 HARDNESS, TOTAL (AS CACO3) 80.700 1.000 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1028 IRON < 100.000 UG/L 300 100 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1031 MAGNESIUM 4.330 1.500 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1032 MANGANESE < 20.000 UG/L 50 20 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1920 ODOR 1.000 1.000 TON 3 1 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1925 PH 6.770 0.010 pH 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1050 SILVER < 10.000 UG/L 100 10 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1052 SODIUM 8.890 2.000 MG/L 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1064 CONDUCTIVITY @ 25 C UMHOS/CM 217.000 1.000 UMHO/CM 1600 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1055 SULFATE 1.600 1.000 MG/L 500 .5 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1930 TDS 160.000 1.000 MG/L 1000 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 0100 TURBIDITY 1.480 0.020 NTU 5 .1 07-06-2023 36 2026/07
CA5510005_004_004 SECONDARY/GP-202607 1095 ZINC < 50.000 UG/L 5000 50 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1002 ALUMINUM < 50.000 UG/L 1000 50 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1005 ARSENIC < 2.000 UG/L 10 2 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-203209 1094 ASBESTOS < 0.200 MFL 7 .2 09-29-2023 108 2032/09
CA5510005_004_004 INORGANIC-202607 1010 BARIUM < 100.000 UG/L 1000 100 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1015 CADMIUM < 1.000 UG/L 5 1 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1020 CHROMIUM < 10.000 UG/L 50 10 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1025 FLUORIDE < 0.100 MG/L 2 .1 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1035 MERCURY < 1.000 UG/L 2 1 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1036 NICKEL < 10.000 UG/L 100 10 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1039 PERCHLORATE < 0.500 UG/L 6 2 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1045 SELENIUM < 5.000 UG/L 50 5 07-06-2023 36 2026/07
CA5510005_004_004 INORGANIC-202607 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-06-2023 36 2026/07
CA5510005_004_004 NITRATE/NITRITE-202407 1040 NITRATE < 0.400 MG/L 10 .4 07-06-2023 12 2024/07
CA5510005_004_004 NITRATE/NITRITE-202607 1041 NITRITE < 0.400 MG/L 1 .4 07-06-2023 36 2026/07
CA5510005_004_004 RADIOLOGICAL-203209 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.490 PCI/L 15 3 09-29-2023 108 2032/09
CA5510005_004_004 REGULATED VOC-202907 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2990 BENZENE < 0.500 UG/L 1 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2996 STYRENE < 0.500 UG/L 100 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2991 TOLUENE < 0.500 UG/L 150 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED VOC-202907 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-07-2023 72 2029/07
CA5510005_004_004 REGULATED SOC-202410 2414 1,2,3-TRICHLOROPROPANE < UG/L 0.005 10-15-2018 72 2024/10
CA5510005_004_004 REGULATED SOC-202307 2050 ATRAZINE < 0.500 UG/L 1 .5 07-12-2017 72 2023/07 DUE NOW
CA5510005_004_004 REGULATED SOC-202307 2037 SIMAZINE < 1.000 UG/L 4 1 07-12-2017 72 2023/07 DUE NOW
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.