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
MS0140003 , Town of Coahoma
28 of the 58 analytes this system has been tested for have been detected at least once, across 302 samples on record.
The other 30 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 302 samples on record, detections range from December 8, 1993 to February 10, 2026. 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 |
|---|---|---|---|---|
| TTHM 2950 | Organic Chemical | 74 of 85 results | May 17, 2004 | Feb 10, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 62 of 83 results | May 17, 2004 | Nov 18, 2025 |
| Lead 1030 | Inorganic Chemical | 62 of 75 results | Dec 8, 1993 | Sep 9, 2025 |
| Copper, Free 1022 | Inorganic Chemical | 56 of 75 results | Dec 8, 1993 | Sep 9, 2025 |
| Bromoform 2942 | Organic Chemical | 50 of 64 results | Sep 11, 2006 | Feb 10, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 50 of 64 results | Sep 11, 2006 | Feb 10, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 49 of 64 results | Sep 11, 2006 | Feb 10, 2026 |
| Chloroform 2941 | Organic Chemical | 49 of 64 results | Sep 11, 2006 | Jul 30, 2024 |
| Dibromoacetic Acid 2454 | Organic Chemical | 42 of 62 results | Aug 27, 2007 | Nov 18, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 25 of 62 results | Aug 27, 2007 | Nov 18, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 19 of 62 results | Aug 27, 2007 | Nov 18, 2025 |
| Arsenic 1005 | Inorganic Chemical | 12 of 12 results | May 7, 2002 | Feb 4, 2025 |
| Barium 1010 | Inorganic Chemical | 12 of 12 results | May 7, 2002 | Feb 4, 2025 |
| Fluoride 1025 | Inorganic Chemical | 12 of 12 results | May 7, 2002 | Feb 4, 2025 |
| Selenium 1045 | Inorganic Chemical | 10 of 12 results | May 7, 2002 | May 9, 2022 |
| Monobromoacetic Acid 2453 | Organic Chemical | 9 of 62 results | May 11, 2011 | Nov 18, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 12 results | Jan 28, 2004 | Feb 4, 2025 |
| Nickel 1036 | Inorganic Chemical | 3 of 12 results | Mar 19, 2008 | Feb 4, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 62 results | Feb 26, 2019 | Dec 18, 2023 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Feb 2, 2021 | Oct 14, 2024 |
| Thallium, Total 1085 | Inorganic Chemical | 2 of 12 results | Feb 28, 2005 | Apr 20, 2020 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 1 of 2 results | Dec 6, 2011 | Dec 6, 2011 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 2 results | Dec 6, 2011 | Dec 6, 2011 |
| Radium-228 4030 | Radionuclide | 1 of 2 results | Dec 6, 2011 | Dec 6, 2011 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 6 results | Dec 6, 2011 | Dec 6, 2011 |
| Mercury 1035 | Inorganic Chemical | 1 of 12 results | Feb 28, 2005 | Feb 28, 2005 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 13 results | Oct 14, 2004 | Oct 14, 2004 |
| Beryllium, Total 1075 | Inorganic Chemical | 1 of 12 results | May 7, 2002 | May 7, 2002 |
Showing samples collected between September 25, 2024 and September 25, 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 1–10 of 11 samples, newest first — collected January 27, 2025 to February 10, 2026. The summary above covers all 11.
35 results from the 10 samples listed here: 23 detected, 12 not detected. Across the whole record it is 617 of 1,389. 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 10, 2026 12:05, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
| 2.9 ug/l , sample collected Feb 10, 2026 12:05, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
| 0.69 ug/l , sample collected Feb 10, 2026 12:05, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
| 2.2 ug/l , sample collected Feb 10, 2026 12:05, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
| 5.79 ug/l , sample collected Feb 10, 2026 12:05, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 18, 2025 01:30, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 1.9 ug/l , sample collected Nov 18, 2025 01:30, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 1.7 ug/l , sample collected Nov 18, 2025 01:30, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| 1.6 ug/l , sample collected Nov 18, 2025 01:30, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 14 ug/l , sample collected Nov 18, 2025 01:30, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 19.2 ug/l , sample collected Nov 18, 2025 01:30, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.015 mg/l , sample collected Sep 9, 2025 06:31, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 1.2 ug/l , sample collected Sep 9, 2025 06:31, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
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| 0.0789 mg/l , sample collected Sep 9, 2025 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 1 ug/l , sample collected Sep 9, 2025 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0141 mg/l , sample collected Sep 9, 2025 05:13, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 1.5 ug/l , sample collected Sep 9, 2025 05:13, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0181 mg/l , sample collected Sep 9, 2025 05:58, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 1.4 ug/l , sample collected Sep 9, 2025 05:58, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 3, 2025 14:20, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| 96.4 ug/l , sample collected Mar 24, 2025 14:15, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
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| 0.0015 mg/l , sample collected Feb 4, 2025 12:59, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0049 mg/l , sample collected Feb 4, 2025 12:59, sampling point TF102 | 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 4, 2025 12:59, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0006 mg/l , sample collected Feb 4, 2025 12:59, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.152 mg/l , sample collected Feb 4, 2025 12:59, sampling point TF102 | 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 4, 2025 12:59, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0012 mg/l , sample collected Feb 4, 2025 12:59, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 4, 2025 12:59, sampling point TF102 | 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 4, 2025 12:59, sampling point TF102 | 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 4, 2025 12:59, sampling point TF102 | 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 4, 2025 12:59, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 27, 2025 13:10, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 27, 2025 13:10, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 27, 2025 13:10, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- Feb 10, 2026 12:05
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-180462-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromoform 2942 EPA method 524.2
- Result
- 2.9 ug/l
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 0.69 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.2 ug/l
-
TTHM 2950 EPA method 524.2
- Result
- 5.79 ug/l
-
- Collected
- Nov 18, 2025 01:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-172551-1
- 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
- 1.9 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 1.7 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- 1.6 ug/l
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 14 ug/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 19.2 ug/l
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
- Collected
- Sep 9, 2025 06:31
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250910-065
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.2 ug/l
-
- Collected
- Sep 9, 2025 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250910-064
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0789 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1 ug/l
-
- Collected
- Sep 9, 2025 05:13
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250910-063
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0141 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.5 ug/l
-
- Collected
- Sep 9, 2025 05:58
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250910-062
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0181 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.4 ug/l
-
- Collected
- Jun 3, 2025 14:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250604-002
- 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
- Mar 24, 2025 14:15
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-250325-007
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
TTHM 2950 EPA method 524.2
- Result
- 96.4 ug/l
-
- Collected
- Feb 4, 2025 12:59
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250205-014
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- 0.0015 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0049 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- 0.0006 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.152 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Nickel 1036 EPA method 200.8
- Result
- 0.0012 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, 2023 – 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, 2023 – 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, 2023 – 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, 2023 – Dec 31, 2025
-
- Collected
- Jan 27, 2025 13:10
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-250128-070
- 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
Routine (10).