Date:05-13-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5010043SYSTEM NAME:STANISLAUS REGIONAL WATER AUTHORITYCOUNTY:STANISLAUS 
SOURCE NO.:001SOURCE NAME:TUOLUMNE RIVER - RAWSOURCE CLASS:CLSASTATUS: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
CA5010043_001_001 SECONDARY/GP-202504 1928 ALKALINITY, BICARBONATE < 20.000 MG/L 04-02-2024 12 2025/04
CA5010043_001_001 SECONDARY/GP-202303 1919 CALCIUM 6.000 1.000 MG/L 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202504 1929 ALKALINITY, CARBONATE < 20.000 MG/L 04-02-2024 12 2025/04
CA5010043_001_001 SECONDARY/GP-202303 1017 CHLORIDE 2.600 0.500 MG/L 500 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1905 COLOR 10.000 3.000 UNITS 15 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1022 COPPER, FREE < 2.000 UG/L 1000 50 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202504 1021 HYDROXIDE AS CALCIUM CARBONATE < 20.000 MG/L 04-02-2024 12 2025/04
CA5010043_001_001 SECONDARY/GP-202303 1028 IRON 85.000 10.000 UG/L 300 100 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-201909 1031 MAGNESIUM 3.200 MG/L 09-12-2018 12 2019/09 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1032 MANGANESE 13.000 2.000 UG/L 50 20 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1920 ODOR 2.000 1.000 TON 3 1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202202 1925 PH 7.500 pH 02-18-2021 12 2022/02 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1050 SILVER < 0.500 UG/L 100 10 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1052 SODIUM 3.800 1.000 MG/L 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1064 CONDUCTIVITY @ 25 C UMHOS/CM 69.000 2.000 UMHO/CM 1600 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1055 SULFATE 2.800 0.500 MG/L 500 .5 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1930 TDS 47.000 10.000 MG/L 1000 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 0100 TURBIDITY 1.100 0.100 NTU 5 .1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 SECONDARY/GP-202303 1095 ZINC < 20.000 UG/L 5000 50 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1002 ALUMINUM 48.000 20.000 UG/L 1000 50 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1005 ARSENIC < 1.000 UG/L 10 2 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-203009 1094 ASBESTOS < 4.000 MFL 7 .2 09-16-2021 108 2030/09
CA5010043_001_001 INORGANIC-202303 1010 BARIUM 17.000 2.000 UG/L 1000 100 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1015 CADMIUM < 0.500 UG/L 5 1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1020 CHROMIUM < 1.000 UG/L 50 10 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1025 FLUORIDE < 0.050 MG/L 2 .1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1035 MERCURY < 0.200 UG/L 2 1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1036 NICKEL < 5.000 UG/L 100 10 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1039 PERCHLORATE < 2.000 UG/L 6 2 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1045 SELENIUM < 5.000 UG/L 50 5 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 INORGANIC-202303 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 03-17-2022 12 2023/03 DUE NOW
CA5010043_001_001 NITRATE/NITRITE-201909 1040 NITRATE 0.850 0.400 MG/L 10 .4 09-26-2018 12 2019/09 DUE NOW
CA5010043_001_001 NITRATE/NITRITE-202109 1041 NITRITE < 0.400 MG/L 1 .4 09-26-2018 36 2021/09 DUE NOW
CA5010043_001_001 RADIOLOGICAL-202603 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 03-17-2022 48 2026/03
CA5010043_001_001 REGULATED VOC-202304 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2990 BENZENE < 0.500 UG/L 1 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2996 STYRENE < 0.500 UG/L 100 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2991 TOLUENE < 0.500 UG/L 150 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2976 VINYL CHLORIDE < 0.300 UG/L .5 .5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED VOC-202304 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 04-11-2022 12 2023/04 DUE NOW
CA5010043_001_001 REGULATED SOC-202109 2414 1,2,3-TRICHLOROPROPANE < UG/L 0.005 09-12-2018 36 2021/09 DUE NOW
CA5010043_001_001 REGULATED SOC-203103 2050 ATRAZINE < 0.050 UG/L 1 .5 03-17-2022 108 2031/03
CA5010043_001_001 REGULATED SOC-202503 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 03-17-2022 36 2025/03
CA5010043_001_001 REGULATED SOC-202503 2946 ETHYLENE DIBROMIDE < 0.010 UG/L .05 .02 03-17-2022 36 2025/03
CA5010043_001_001 REGULATED SOC-203103 2037 SIMAZINE < 0.050 UG/L 4 1 03-17-2022 108 2031/03
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.