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
MS0790002 , Buffalo Water Association
37 of the 71 analytes this system has been tested for have been detected at least once, across 209 samples on record.
The other 34 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 209 samples on record, detections range from November 12, 2003 to August 18, 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 | 61 of 61 results | Sep 20, 2007 | Sep 21, 2023 |
| Lead 1030 | Inorganic Chemical | 53 of 61 results | Sep 20, 2007 | Sep 21, 2023 |
| Barium 1010 | Inorganic Chemical | 13 of 13 results | Nov 12, 2003 | Apr 2, 2025 |
| TTHM 2950 | Organic Chemical | 10 of 18 results | Sep 13, 2004 | Aug 18, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 17 results | Sep 27, 2007 | Aug 18, 2025 |
| Fluoride 1025 | Inorganic Chemical | 7 of 14 results | May 2, 2005 | Apr 2, 2025 |
| Chloroform 2941 | Organic Chemical | 5 of 13 results | Feb 26, 2024 | Aug 18, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 13 results | Feb 26, 2024 | Aug 18, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 13 results | Feb 26, 2024 | Aug 18, 2025 |
| Nickel 1036 | Inorganic Chemical | 5 of 13 results | May 2, 2005 | Apr 2, 2025 |
| Chromium 1020 | Inorganic Chemical | 5 of 13 results | Nov 12, 2003 | Feb 5, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 7, 2011 | Jul 12, 2012 |
| Sodium 1052 | Inorganic Chemical | 4 of 4 results | Jan 9, 2018 | Mar 22, 2023 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 of 4 results | Dec 7, 2011 | Jul 11, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 11 results | Jun 30, 2011 | Aug 18, 2025 |
| Arsenic 1005 | Inorganic Chemical | 3 of 13 results | May 28, 2013 | May 29, 2019 |
| Sulfate 1055 | Inorganic Chemical | 3 of 3 results | Nov 12, 2003 | Jan 9, 2018 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 11 results | Jun 30, 2011 | Oct 28, 2020 |
| Selenium 1045 | Inorganic Chemical | 2 of 13 results | Nov 12, 2003 | May 2, 2005 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 11 results | Aug 18, 2025 | Aug 18, 2025 |
| Bromoform 2942 | Organic Chemical | 1 of 13 results | Aug 18, 2025 | Aug 18, 2025 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Iron 1028 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Carbon Dioxide 1901 | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Color 1905 | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | Jan 9, 2018 | Jan 9, 2018 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 39 results | May 8, 2012 | May 8, 2012 |
| Cadmium 1015 | Inorganic Chemical | 1 of 13 results | May 2, 2005 | May 2, 2005 |
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 11–14 of 14 samples, newest first — collected October 21, 2024 to November 20, 2024. The summary above covers all 14.
24 results from the 4 samples listed here: 6 detected, 18 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 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 2 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2024 – Dec 31, 2024 |
| 1.4 ug/l , sample collected Nov 20, 2024 17:30, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 17:30, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.7 ug/l , sample collected Nov 20, 2024 17:30, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.6 ug/l , sample collected Nov 20, 2024 17:30, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 4.7 ug/l , sample collected Nov 20, 2024 17:30, sampling point SM2 | TTHM 2950 EPA method 524.2 | Oct 1, 2024 – Dec 31, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 20, 2024 18:15, sampling point SM1 | TTHM 2950 EPA method 524.2 | Oct 1, 2024 – Dec 31, 2024 |
|
||
| 1.85 ug/l , sample collected Oct 21, 2024 15:05, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 2.77 ug/l , sample collected Oct 21, 2024 15:04, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
-
- Collected
- Nov 20, 2024 17:30
- Sampling point
- SM2 End of Smith Rd 3
- Sample type
- Routine
- Lab sample
- 810-129302-2
- 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, 2024 – Dec 31, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 1.4 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
- 1.7 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.6 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 4.7 ug/l
- Monitoring period
- Oct 1, 2024 – Dec 31, 2024
-
- Collected
- Nov 20, 2024 18:15
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-129302-1
- 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, 2024 – Dec 31, 2024
-
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, 2024 – Dec 31, 2024
-
- Collected
- Oct 21, 2024 15:05
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-241022-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.85 ug/l
-
- Collected
- Oct 21, 2024 15:04
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-241022-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.77 ug/l
Routine (4).