Date:11-11-2025STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:5000433SYSTEM NAME:OID-OAKDALE RURAL WATER SYSTEM #1COUNTY:STANISLAUS 
SOURCE NO.:004SOURCE NAME:HILLSBOROUGH ESTATES WELL NO. 01SOURCE CLASS:CMGASTATUS: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
CA5000433_004_004 SECONDARY/GP 1928 ALKALINITY, BICARBONATE 85.000 MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1919 CALCIUM 13.000 MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1929 ALKALINITY, CARBONATE < MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1017 CHLORIDE 3.400 MG/L 500 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1905 COLOR < UNITS 15 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1022 COPPER, FREE < 50.000 UG/L 1000 50 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1915 HARDNESS, TOTAL (AS CACO3) 59.000 MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1028 IRON < 100.000 UG/L 300 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1031 MAGNESIUM 6.200 MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1032 MANGANESE < 20.000 UG/L 50 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1920 ODOR < 1.000 TON 3 1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1925 PH 8.100 pH 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1050 SILVER < 10.000 UG/L 100 10 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1052 SODIUM 8.200 MG/L 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1064 CONDUCTIVITY @ 25 C UMHOS/CM 160.000 1.000 UMHO/CM 1600 11-23-2021 36 2024/11 DUE NOW
CA5000433_004_004 SECONDARY/GP 1055 SULFATE 3.500 0.500 MG/L 500 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1930 TDS 150.000 MG/L 1000 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 0100 TURBIDITY 0.110 0.100 NTU 5 .1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 SECONDARY/GP 1095 ZINC < 50.000 UG/L 5000 50 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1002 ALUMINUM < 50.000 UG/L 1000 50 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1005 ARSENIC 2.400 2.000 UG/L 10 2 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1010 BARIUM < 100.000 UG/L 1000 100 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1015 CADMIUM < 1.000 UG/L 5 1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1020 CHROMIUM < 10.000 UG/L 50 10 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1080 CHROMIUM, HEX 1.400 1.000 UG/L 10 1 02-15-2017 0 2024/10 DUE NOW
CA5000433_004_004 INORGANIC 1025 FLUORIDE < 0.100 MG/L 2 .1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1035 MERCURY < 1.000 UG/L 2 1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1036 NICKEL < 10.000 UG/L 100 10 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1039 PERCHLORATE < 2.000 UG/L 6 2 11-23-2021 36 2024/11 DUE NOW
CA5000433_004_004 INORGANIC 1045 SELENIUM < 5.000 UG/L 50 5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 INORGANIC 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 NITRATE/NITRITE 1040 NITRATE 0.820 0.230 MG/L 10 .4 03-22-2022 12 2023/03 DUE NOW
CA5000433_004_004 NITRATE/NITRITE 1038 NITRATE-NITRITE 0.990 0.400 MG/L 10 .4 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 RADIOLOGICAL 4109 GROSS ALPHA PARTICLE ACTIVITY < 1.200 PCI/L 15 3 12-02-2013 108 2022/12 DUE NOW
CA5000433_004_004 REGULATED VOC 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2990 BENZENE < 0.500 UG/L 1 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2996 STYRENE < 0.500 UG/L 100 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2991 TOLUENE < 0.500 UG/L 150 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED VOC 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 12-21-2021 36 2024/12 DUE NOW
CA5000433_004_004 REGULATED SOC 2050 ATRAZINE < 0.500 UG/L 1 .5 02-04-2014 108 2023/02 DUE NOW
CA5000433_004_004 REGULATED SOC 2931 1,2-DIBROMO-3-CHLOROPROPANE < UG/L .2 .01 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED SOC 2946 ETHYLENE DIBROMIDE < UG/L .05 .02 08-04-2020 36 2023/08 DUE NOW
CA5000433_004_004 REGULATED SOC 2037 SIMAZINE < 1.000 UG/L 4 1 02-04-2014 108 2023/02 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.