Chemical and radiological sample results

MS0380009 ·, Toomsuba 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 1–10 of 404 samples, newest first — collected April 9, 2025 to July 8, 2026. The summary above covers all 404.

77 results from the 10 samples listed here: 16 detected, 61 not detected. Across the whole record it is 427 of 2,499. 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 The location on record identifies a private home, and we do not publish those.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

  Jul 8, 2026

  Sampling point

  TF083 Treatment Facility TF083

  Sample type

  Routine

  Lab sample

  35050355004

  Laboratory

  Pace Analytical Services, LLC

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Barium 1010 EPA method 200.8

    Result

    22.4 ug/l

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Chromium 1020 EPA method 200.8

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Fluoride 1025 EPA method 300.0

    Result

    0.087 mg/l

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Mercury 1035 EPA method 245.1

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Selenium 1045 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Antimony, Total 1074 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Beryllium, Total 1075 EPA method 200.8

    Result

    Not detected below 0.1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Thallium, Total 1085 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Xylenes, Total 2955 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Dichloromethane 2964 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • O-Dichlorobenzene 2968 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • P-Dichlorobenzene 2969 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Vinyl Chloride 2976 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • 1,1-Dichloroethylene 2977 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • 1,2-Dichloroethane 2980 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Carbon Tetrachloride 2982 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • 1,2-Dichloropropane 2983 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Trichloroethylene 2984 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Tetrachloroethylene 2987 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Chlorobenzene 2989 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Benzene 2990 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Toluene 2991 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Ethylbenzene 2992 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Styrene 2996 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

• Collected

  Jul 8, 2026

  Sampling point

  TF082 Treatment Plant T082

  Sample type

  Routine

  Lab sample

  35050355003

  Laboratory

  Pace Analytical Services, LLC

  Monitoring period

  Jan 1, 2026 – Dec 31, 2031

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Barium 1010 EPA method 200.8

    Result

    22.5 ug/l

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

  • Chromium 1020 EPA method 200.8

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Fluoride 1025 EPA method 300.0

    Result

    0.088 mg/l

  • Mercury 1035 EPA method 245.1

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

  • Selenium 1045 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Antimony, Total 1074 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Beryllium, Total 1075 EPA method 200.8

    Result

    Not detected below 0.1 ug/l Minimum Reporting Level

  • Thallium, Total 1085 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

• Collected

  Jul 8, 2026

  Sampling point

  TF081 Treatment Plant T081

  Sample type

  Routine

  Lab sample

  35050355002

  Laboratory

  Pace Analytical Services, LLC

  Monitoring period

  Jan 1, 2026 – Dec 31, 2031

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Barium 1010 EPA method 200.8

    Result

    47.3 ug/l

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

  • Chromium 1020 EPA method 200.8

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Fluoride 1025 EPA method 300.0

    Result

    0.079 mg/l

  • Mercury 1035 EPA method 245.1

    Result

    Not detected below 0.2 ug/l Minimum Reporting Level

  • Selenium 1045 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Antimony, Total 1074 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

  • Beryllium, Total 1075 EPA method 200.8

    Result

    Not detected below 0.1 ug/l Minimum Reporting Level

  • Thallium, Total 1085 EPA method 200.8

    Result

    Not detected below 1 ug/l Minimum Reporting Level

• Collected

  Jun 9, 2026 03:00

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-195359-1

  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, 2026 – Dec 31, 2026

  • Chloroform 2941 EPA method 524.2

    Result

    1 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    0.55 ug/l

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    1.5 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.9 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    4.95 ug/l

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

• Collected

  Sep 15, 2025 14:00

  Sampling point

  TF083 Treatment Facility TF083

  Sample type

  Routine

  Lab sample

  IN-250916-019

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Mercury 1035 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Aug 26, 2025 12:00

  Sampling point

  TF082 Treatment Plant T082

  Sample type

  Routine

  Lab sample

  CN-250827-013

  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

  Aug 26, 2025 12:30

  Sampling point

  TF081 Treatment Plant T081

  Sample type

  Routine

  Lab sample

  CN-250827-012

  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

  Apr 9, 2025 12:00

  Sampling point

  TF083 Treatment Facility TF083

  Sample type

  Routine

  Lab sample

  IN-250410-045

  Laboratory

  MSDH Lab

  • Arsenic 1005 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2025 – Dec 31, 2025

  • Barium 1010 EPA method 200.8

    Result

    0.0214 mg/l

    Monitoring period

    Jan 1, 2025 – Dec 31, 2025

  • Cadmium 1015 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2025 – Dec 31, 2025

  • Chromium 1020 EPA method 200.8

    Result

    0.0013 mg/l

    Monitoring period

    Jan 1, 2025 – Dec 31, 2025

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

    Result

    Not detected below 0.1 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2025 – Dec 31, 2025

  • Nickel 1036 EPA method 200.8

    Result

    0.0011 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, 2025 – 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, 2025 – 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, 2025 – 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, 2025 – Dec 31, 2025

• Collected

  Apr 9, 2025 13:15

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  HA-250410-008

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    7.37 ug/l

• Collected

  Apr 9, 2025 13:15

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  TH-250410-008

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • TTHM 2950 EPA method 524.2

    Result

    3.31 ug/l

Routine (10).