Chemical and radiological sample results

MS0590002 ·, Big V Water Association

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Scroll the table sideways for the dates.

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 21–30 of 383 samples, newest first — collected April 9, 2025 to July 30, 2025. The summary above covers all 383.

47 results from the 10 samples listed here: 10 detected, 37 not detected. Across the whole record it is 383 of 1,853. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 6 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

• Collected

  Jul 30, 2025 05:51

  Sampling point

  LC005 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-014

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0161 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 30, 2025 12:40

  Sampling point

  LC003 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-001

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.32 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 30, 2025 16:00

  Sampling point

  LC001 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-012

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.308 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 30, 2025 07:05

  Sampling point

  LC004 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-011

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0519 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 29, 2025 19:10

  Sampling point

  LC031 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-005

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0111 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 29, 2025 17:00

  Sampling point

  LC023 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250805-004

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0129 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  May 12, 2025 11:33

  Sampling point

  TF081 Treatment TF081

  Sample type

  Routine

  Lab sample

  CN-250513-012

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Cyanide 1024 EPA method QC10204001X

    Result

    Not detected below 0.015 mg/l Minimum Reporting Level

• Collected

  May 12, 2025 11:28

  Sampling point

  TF081 Treatment TF081

  Sample type

  Routine

  Lab sample

  VO-250513-001

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • 1,2,4-Trichlorobenzene 2378 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Cis-1,2-Dichloroethylene 2380 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Xylenes, Total 2955 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Dichloromethane 2964 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • O-Dichlorobenzene 2968 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • P-Dichlorobenzene 2969 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Vinyl Chloride 2976 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • 1,1-Dichloroethylene 2977 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Trans-1,2-Dichloroethylene 2979 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • 1,2-Dichloroethane 2980 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • 1,1,1-Trichloroethane 2981 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Carbon Tetrachloride 2982 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • 1,2-Dichloropropane 2983 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Trichloroethylene 2984 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • 1,1,2-Trichloroethane 2985 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Tetrachloroethylene 2987 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Chlorobenzene 2989 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Benzene 2990 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Toluene 2991 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Ethylbenzene 2992 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Styrene 2996 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Apr 9, 2025 09:02

  Sampling point

  TF080 Treatment TF080

  Sample type

  Routine

  Lab sample

  IN-250410-006

  Laboratory

  MSDH Lab

  Monitoring period

  Not recorded

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

  • Barium 1010 EPA method 200.8

    Result

    0.11 mg/l

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

  • Chromium 1020 EPA method 200.8

    Result

    0.0029 mg/l

  • Fluoride 1025 EPA method QC 10-109-12-2-A

    Result

    0.121 mg/l

  • Nickel 1036 EPA method 200.8

    Result

    0.0037 mg/l

  • Selenium 1045 EPA method 200.8

    Result

    Not detected below 0.0025 mg/l Minimum Reporting Level

  • Antimony, Total 1074 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

  • Beryllium, Total 1075 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

  • Thallium, Total 1085 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Apr 9, 2025 08:41

  Sampling point

  TF082 Treatment TF082

  Sample type

  Routine

  Lab sample

  NI-250410-022

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Nitrate-Nitrite 1038 EPA method QC10107041C

    Result

    Not detected below 0.1 mg/l Minimum Reporting Level

  • Nitrate 1040 EPA method QC10107041C

    Result

    Not detected below 0.08 mg/l Minimum Reporting Level

  • Nitrite 1041 EPA method QC10107041C

    Result

    Not detected below 0.02 mg/l Minimum Reporting Level

Routine (10).