Chemical and radiological sample results

MS0400009 ·, Thomastown 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.

The most recent samples, result by result

The table below lists 11–17 of 17 samples, newest first — collected October 1, 2024 to March 11, 2025. The summary above covers all 17.

49 results from the 7 samples listed here: 31 detected, 18 not detected. 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 1 sampling point 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 The location on record identifies a private home, and we do not publish those.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

  Mar 11, 2025 12:15

  Sampling point

  TF103 TF103

  Sample type

  Routine

  Lab sample

  NI-250312-013

  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

• Collected

  Mar 11, 2025 14:30

  Sampling point

  SM1 Intersection of Hwy 429 and Hwy 435

  Sample type

  Routine

  Lab sample

  810-141094-2

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    2.8 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    3.7 ug/l

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    6.5 ug/l

    Monitoring period

    Jan 1, 2025 – Mar 31, 2025

  • Chloroform 2941 EPA method 524.2

    Result

    6.2 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    3.3 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.5 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    11 ug/l

    Monitoring period

    Jan 1, 2025 – Mar 31, 2025

• Collected

  Mar 11, 2025 13:30

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-141094-1

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2025 – Mar 31, 2025

  • Chloroform 2941 EPA method 524.2

    Result

    3.2 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    1.4 ug/l

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    3 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    3.4 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    11 ug/l

    Monitoring period

    Jan 1, 2025 – Mar 31, 2025

• Collected

  Feb 19, 2025 10:25

  Sampling point

  TF104 Treatment Facility TF 104

  Sample type

  Routine

  Lab sample

  NA-250220-010

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Sodium 1052 EPA method 200.7

    Result

    69.3 mg/l

• Collected

  Feb 19, 2025 10:10

  Sampling point

  TF103 TF103

  Sample type

  Routine

  Lab sample

  NA-250220-009

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2023 – Dec 31, 2025

  • Sodium 1052 EPA method 200.7

    Result

    69.5 mg/l

• Collected

  Oct 1, 2024 11:20

  Sampling point

  SM1 Intersection of Hwy 429 and Hwy 435

  Sample type

  Routine

  Lab sample

  810-122333-2

  Laboratory

  Eurofins Eaton Analytical South Bend in

  Monitoring period

  Jul 1, 2024 – Sep 30, 2024

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    2.5 ug/l

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    2.8 ug/l

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    5.3 ug/l

  • Chloroform 2941 EPA method 524.2

    Result

    6.1 ug/l

  • Bromoform 2942 EPA method 524.2

    Result

    4.6 ug/l

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    7.8 ug/l

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    12 ug/l

  • TTHM 2950 EPA method 524.2

    Result

    30.5 ug/l

• Collected

  Oct 1, 2024 11:00

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-122333-1

  Laboratory

  Eurofins Eaton Analytical South Bend in

  Monitoring period

  Jul 1, 2024 – Sep 30, 2024

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    2.5 ug/l

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    1 ug/l

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    2.8 ug/l

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    6.3 ug/l

  • Chloroform 2941 EPA method 524.2

    Result

    5.7 ug/l

  • Bromoform 2942 EPA method 524.2

    Result

    4.3 ug/l

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    7.6 ug/l

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    11 ug/l

  • TTHM 2950 EPA method 524.2

    Result

    28.6 ug/l

Routine (7).