Chemical and radiological sample results

MS0780010 ·, Tomnolen Water Assn, Inc

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 199 samples, newest first — collected December 9, 2025 to July 20, 2026. The summary above covers all 199.

91 results from the 10 samples listed here: 6 detected, 85 not detected. Across the whole record it is 171 of 1,020. 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 2 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 The location on record identifies a private home, and we do not publish those.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 20, 2026

  Sampling point

  TF102 Tment Plant T102

  Sample type

  Routine

  Lab sample

  35052722002

  Laboratory

  Pace Analytical Services, LLC

  Monitoring period

  Jan 1, 2024 – Dec 31, 2026

  • Sodium 1052 EPA method 200.7

    Result

    55400 ug/l

• Collected

  Jul 20, 2026

  Sampling point

  TF101 Treatment Plant T101

  Sample type

  Routine

  Lab sample

  35052722001

  Laboratory

  Pace Analytical Services, LLC

  • Sodium 1052 EPA method 200.7

    Result

    63600 ug/l

    Monitoring period

    Jan 1, 2024 – Dec 31, 2026

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Xylenes, Total 2955 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Dichloromethane 2964 EPA method 524.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • O-Dichlorobenzene 2968 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • P-Dichlorobenzene 2969 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Vinyl Chloride 2976 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • 1,1-Dichloroethylene 2977 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • 1,2-Dichloroethane 2980 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Carbon Tetrachloride 2982 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • 1,2-Dichloropropane 2983 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Trichloroethylene 2984 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

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

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Tetrachloroethylene 2987 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Chlorobenzene 2989 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Benzene 2990 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Toluene 2991 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Ethylbenzene 2992 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

  • Styrene 2996 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2023 – Dec 31, 2028

• Collected

  Jul 8, 2026 10:30

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-199079-2

  Laboratory

  Eurofins Eaton Analytical South Bend in

  Monitoring period

  Apr 1, 2026 – Jun 30, 2026

  • 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

    Not detected below 1 ug/l Minimum Reporting Level

  • 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

    Not detected below 1 ug/l Minimum Reporting Level

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • TTHM 2950 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Jul 8, 2026 10:00

  Sampling point

  SM 1 Location withheld

  Sample type

  Routine

  Lab sample

  810-199079-1

  Laboratory

  Eurofins Eaton Analytical South Bend in

  Monitoring period

  Apr 1, 2026 – Jun 30, 2026

  • 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

    Not detected below 1 ug/l Minimum Reporting Level

  • 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

    Not detected below 1 ug/l Minimum Reporting Level

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

  • TTHM 2950 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Feb 18, 2026 13:45

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-181527-2

  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

    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 – Mar 31, 2026

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    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

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Mar 31, 2026

• Collected

  Feb 18, 2026 12:10

  Sampling point

  SM 1 Location withheld

  Sample type

  Routine

  Lab sample

  810-181527-1

  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 – Mar 31, 2026

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    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

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Mar 31, 2026

• Collected

  Dec 16, 2025 14:20

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-176141-2

  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

    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

    Oct 1, 2025 – Dec 31, 2025

  • Chloroform 2941 EPA method 524.2

    Result

    0.63 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

    0.76 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    0.82 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    2.21 ug/l

    Monitoring period

    Oct 1, 2025 – Dec 31, 2025

• Collected

  Dec 16, 2025 13:50

  Sampling point

  SM 1 Location withheld

  Sample type

  Routine

  Lab sample

  810-176141-1

  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

    Oct 1, 2025 – Dec 31, 2025

  • Chloroform 2941 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    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

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Oct 1, 2025 – Dec 31, 2025

• Collected

  Dec 9, 2025 15:15

  Sampling point

  TF102 Tment Plant T102

  Sample type

  Routine

  Lab sample

  CN-251210-024

  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

  Dec 9, 2025 14:30

  Sampling point

  TF101 Treatment Plant T101

  Sample type

  Routine

  Lab sample

  CN-251210-023

  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

Routine (10).