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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0380101 , Town of Marion

19 of the 57 analytes this system has been tested for have been detected at least once, across 158 samples on record.

The other 38 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 158 samples on record, detections range from September 29, 2003 to May 20, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

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.

Every analyte ever detected for Town of Marion, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 62 of 62 results Aug 2, 2007 Aug 30, 2023
Lead 1030 Inorganic Chemical 30 of 62 results Aug 2, 2007 Aug 30, 2023
TTHM 2950 Organic Chemical 18 of 22 results Jun 23, 2004 May 20, 2026
Bromodichloromethane 2943 Organic Chemical 12 of 16 results Sep 11, 2007 May 20, 2026
Dibromochloromethane 2944 Organic Chemical 12 of 16 results Sep 11, 2007 May 20, 2026
Chloroform 2941 Organic Chemical 11 of 16 results Sep 11, 2007 May 20, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 23 results Sep 21, 2009 Apr 9, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 29, 2003 Feb 26, 2025
Dichloroacetic Acid 2451 Organic Chemical 7 of 16 results Sep 21, 2009 Jun 2, 2025
Bromoform 2942 Organic Chemical 6 of 16 results Sep 11, 2007 Jun 2, 2025
Chromium 1020 Inorganic Chemical 5 of 10 results Sep 29, 2003 Feb 26, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 18, 2012
Fluoride 1025 Inorganic Chemical 3 of 10 results Mar 28, 2005 Feb 26, 2025
Nickel 1036 Inorganic Chemical 3 of 10 results Feb 27, 2006 Feb 26, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 24, 2019 Feb 11, 2025
Dibromoacetic Acid 2454 Organic Chemical 3 of 16 results Sep 21, 2009 Aug 14, 2019
Monobromoacetic Acid 2453 Organic Chemical 2 of 16 results Aug 14, 2019 Sep 15, 2020
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 29, 2003 Mar 1, 2004
Dichloromethane 2964 Organic Chemical 1 of 7 results Aug 9, 2004 Aug 9, 2004

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 158 samples, newest first — collected November 18, 2024 to May 20, 2026. The summary above covers all 158.

62 results from the 10 samples listed here: 27 detected, 35 not detected. Across the whole record it is 205 of 676. 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.

Chemical and radiological sample results for Town of Marion, every result from 1 to 10 of 158 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
May 20, 2026 13:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-193144-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Dec 31, 2026
1.3 ug/l , sample collected May 20, 2026 13:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2026 13:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
1.7 ug/l , sample collected May 20, 2026 13:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.6 ug/l , sample collected May 20, 2026 13:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
4.6 ug/l , sample collected May 20, 2026 13:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Aug 26, 2025 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250827-035
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 26, 2025 14:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Jun 2, 2025 13:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-150727-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 2, 2025 13:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.1 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 2, 2025 13:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 2, 2025 13:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 2, 2025 13:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 2, 2025 13:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2025
2.3 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
0.88 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
2.6 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.7 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
8.48 ug/l , sample collected Jun 2, 2025 13:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Apr 9, 2025 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-250410-009
Laboratory
MSDH Lab
2.12 ug/l , sample collected Apr 9, 2025 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2025
Collected
Apr 9, 2025 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-250410-009
Laboratory
MSDH Lab
4.23 ug/l , sample collected Apr 9, 2025 14:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2025 – Dec 31, 2025
Collected
Mar 10, 2025 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250311-057
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 10, 2025 14:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 10, 2025 14:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 10, 2025 14:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 26, 2025 12:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250227-042
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0384 mg/l , sample collected Feb 26, 2025 12:00, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.001 mg/l , sample collected Feb 26, 2025 12:00, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.173 mg/l , sample collected Feb 26, 2025 12:00, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0012 mg/l , sample collected Feb 26, 2025 12:00, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 12:00, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 11, 2025 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-250212-026
Laboratory
MSDH Lab
35.4 mg/l , sample collected Feb 11, 2025 13:00, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Nov 18, 2024 14:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-128629-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
2 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
0.51 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
2.3 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.2 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
7.01 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Nov 18, 2024 14:00
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-128629-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.1 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
1.5 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 18, 2024 14:00, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
1.8 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.7 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5 ug/l , sample collected Nov 18, 2024 14:00, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (10).