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
MS0400016 , Marydell Water Association
37 of the 72 analytes this system has been tested for have been detected at least once, across 337 samples on record.
The other 35 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 337 samples on record, detections range from October 1, 2003 to December 8, 2025. These figures cover the whole record; the list of samples further down is narrowed.
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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 123 of 123 results | Aug 16, 2007 | Oct 7, 2020 |
| Lead 1030 | Inorganic Chemical | 63 of 123 results | Aug 16, 2007 | Oct 6, 2020 |
| Barium 1010 | Inorganic Chemical | 27 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 21 of 24 results | Sep 30, 2009 | Dec 8, 2025 |
| TTHM 2950 | Organic Chemical | 21 of 23 results | Jul 7, 2004 | Dec 8, 2025 |
| Chloroform 2941 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Chromium 1020 | Inorganic Chemical | 15 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 8, 2012 | Oct 11, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 14 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 13 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Bromoform 2942 | Organic Chemical | 13 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Sodium 1052 | Inorganic Chemical | 12 of 12 results | Sep 24, 2019 | Feb 19, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 10 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 9 of 30 results | May 10, 2017 | Mar 11, 2025 |
| Nickel 1036 | Inorganic Chemical | 7 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Sulfate 1055 | Inorganic Chemical | 7 of 7 results | Oct 1, 2003 | Dec 11, 2020 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Color 1905 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Iron, Field Result FEFD | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 18 results | Jul 6, 2015 | Sep 24, 2019 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 25 results | Mar 5, 2009 | May 11, 2009 |
| Dichloromethane 2964 | Organic Chemical | 2 of 25 results | Aug 12, 2004 | Aug 12, 2004 |
| Arsenic 1005 | Inorganic Chemical | 1 of 27 results | Apr 2, 2014 | Apr 2, 2014 |
Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 21–24 of 24 samples, newest first — collected October 1, 2024 to February 19, 2025. The summary above covers all 24.
44 results from the 4 samples listed here: 17 detected, 27 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 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 106 mg/l , sample collected Feb 19, 2025 14:00, sampling point TF101 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 3, 2025 13:00, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2025 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:20, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 3.4 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 3.6 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:20, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:20, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 7 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 6.1 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 4.2 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 7.7 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 11 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 29 ug/l , sample collected Oct 1, 2024 10:20, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
|
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| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:00, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 3.7 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 4.1 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:00, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 1, 2024 10:00, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 7.8 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
| 6.4 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 2.6 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 6.6 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 7.7 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
| 23.3 ug/l , sample collected Oct 1, 2024 10:00, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
-
- Collected
- Feb 19, 2025 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-250220-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 106 mg/l
-
- Collected
- Feb 3, 2025 13:00
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- VO-250204-012
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2025
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 1, 2024 10:20
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-122337-2
- 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
- 3.4 ug/l
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 3.6 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
- Not detected below 1 ug/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 7 ug/l
-
Chloroform 2941 EPA method 524.2
- Result
- 6.1 ug/l
-
Bromoform 2942 EPA method 524.2
- Result
- 4.2 ug/l
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 7.7 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 11 ug/l
-
TTHM 2950 EPA method 524.2
- Result
- 29 ug/l
-
- Collected
- Oct 1, 2024 10:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-122337-1
- 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
- 3.7 ug/l
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 4.1 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
- Not detected below 1 ug/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 7.8 ug/l
-
Chloroform 2941 EPA method 524.2
- Result
- 6.4 ug/l
-
Bromoform 2942 EPA method 524.2
- Result
- 2.6 ug/l
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 6.6 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 7.7 ug/l
-
TTHM 2950 EPA method 524.2
- Result
- 23.3 ug/l
Routine (4).