Chemical and radiological sample results

MS0180021 ·, Black Creek Retreat

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.

The most recent samples, result by result

The table below lists 1–10 of 11 samples, newest first — collected February 3, 2025 to February 4, 2026. The summary above covers all 11.

27 results from the 10 samples listed here: 14 detected, 13 not detected. Across the whole record it is 202 of 1,082. 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 The location on record identifies a private home, and we do not publish those.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

  Feb 4, 2026 12:00

  Sampling point

  TF101 Treatment Plant T101

  Sample type

  Routine

  Lab sample

  NI-260205-042

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2026 – Dec 31, 2026

  • 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

• Collected

  Jun 25, 2025 06:00

  Sampling point

  LC0003 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250626-053

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.485 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jun 24, 2025 11:39

  Sampling point

  LC0005 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250626-055

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.207 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jun 24, 2025 10:50

  Sampling point

  LC0004 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250626-054

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0425 mg/l

  • Lead 1030 EPA method 200.8

    Result

    1 ug/l

• Collected

  Jun 24, 2025 10:20

  Sampling point

  LC0001 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250626-052

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.358 mg/l

  • Lead 1030 EPA method 200.8

    Result

    1.9 ug/l

• Collected

  Jun 24, 2025 10:30

  Sampling point

  LC0002 Location withheld

  Sample type

  Routine

  Lab sample

  PB-250626-051

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Copper, Free 1022 EPA method 200.8

    Result

    0.501 mg/l

  • Lead 1030 EPA method 200.8

    Result

    1.5 ug/l

• Collected

  Jun 11, 2025 10:50

  Sampling point

  TF101 Treatment Plant T101

  Sample type

  Routine

  Lab sample

  CN-250612-004

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Cyanide 1024 EPA method QC10204001X

    Result

    Not detected below 0.015 mg/l Minimum Reporting Level

• Collected

  Mar 4, 2025 11:10

  Sampling point

  SMD Location withheld

  Sample type

  Routine

  Lab sample

  HA-250305-001

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2024 – Dec 31, 2026

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    10.6 ug/l

• Collected

  Mar 4, 2025 11:10

  Sampling point

  SMD Location withheld

  Sample type

  Routine

  Lab sample

  TH-250305-001

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2024 – Dec 31, 2026

  • TTHM 2950 EPA method 524.2

    Result

    6.22 ug/l

• Collected

  Feb 3, 2025 14:30

  Sampling point

  TF101 Treatment Plant T101

  Sample type

  Routine

  Lab sample

  IN-250204-035

  Laboratory

  MSDH Lab

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Barium 1010 EPA method 200.8

    Result

    0.0071 mg/l

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Chromium 1020 EPA method 200.8

    Result

    0.0247 mg/l

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

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

    Result

    0.143 mg/l

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Mercury 1035 EPA method 245.1

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Nickel 1036 EPA method 200.8

    Result

    0.0185 mg/l

    Monitoring period

    Not recorded

  • Selenium 1045 EPA method 200.8

    Result

    Not detected below 0.0025 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Antimony, Total 1074 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Beryllium, Total 1075 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

  • Thallium, Total 1085 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2025

Routine (10).