Date:07-14-2025STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4500190SYSTEM NAME:OAK RUN ELEMENTARY SCHOOLCOUNTY:SHASTA 
SOURCE NO.:All SourcesSOURCE NAME:N/ASOURCE CLASS:N/ASTATUS:N/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
CA4500190_003_003 INORGANIC 1002 ALUMINUM < 5.000 UG/L 1000 50 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1074 ANTIMONY, TOTAL < 0.500 UG/L 6 6 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1005 ARSENIC < 2.000 UG/L 10 2 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1010 BARIUM 2.000 0.500 UG/L 1000 100 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1075 BERYLLIUM, TOTAL < 0.500 UG/L 4 1 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1015 CADMIUM < 0.200 UG/L 5 1 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1020 CHROMIUM 3.540 2.000 UG/L 50 10 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1080 CHROMIUM, HEX 4.300 0.020 UG/L 10 .1 02-11-2025 36 2028/02
CA4500190_003_003 INORGANIC 1025 FLUORIDE < 0.100 MG/L 2 .1 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1035 MERCURY < 0.100 UG/L 2 1 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1036 NICKEL < 0.500 UG/L 100 10 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1039 PERCHLORATE < 0.500 UG/L 6 2 05-17-2023 36 2026/05
CA4500190_003_003 INORGANIC 1045 SELENIUM < 2.000 UG/L 50 5 10-19-2022 36 2025/10
CA4500190_003_003 INORGANIC 1085 THALLIUM, TOTAL < 0.500 UG/L 2 1 10-19-2022 36 2025/10
CA4500190_003_003 NITRATE/NITRITE 1040 NITRATE 0.920 0.500 MG/L 10 .4 12-12-2024 12 2025/12
CA4500190_003_003 NITRATE/NITRITE 1041 NITRITE < 0.100 MG/L 1 .4 10-19-2022 36 2025/10
CA4500190_003_003 RADIOLOGICAL 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 05-11-2022 108 2031/05
CA4500190_003_003 REGULATED VOC 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2990 BENZENE < 0.500 UG/L 1 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2996 STYRENE < 0.500 UG/L 100 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2991 TOLUENE < 0.500 UG/L 150 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-08-2019 72 2025/08
CA4500190_003_003 REGULATED VOC 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 08-08-2019 72 2025/08
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2943 BROMODICHLOROMETHANE < 0.500 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2942 BROMOFORM < 0.500 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2941 CHLOROFORM < 0.500 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2454 DIBROMOACETIC ACID < 1.000 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2944 DIBROMOCHLOROMETHANE < 0.500 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2451 DICHLOROACETIC ACID < 1.000 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2456 TOTAL HALOACETIC ACIDS (HAA5) < 1.000 UG/L 60 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2450 MONOCHLOROACETIC ACID < 1.000 UG/L 2 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2950 TTHM < 2.000 UG/L 80 09-11-2024 36 2027/09
CA4500190_DST_801 DISINFECTION BYPRODUCTS 2452 TRICHLOROACETIC ACID < 1.000 UG/L 1 09-11-2024 36 2027/09
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.