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
MS0100009 , Town of Weir
20 of the 57 analytes this system has been tested for have been detected at least once, across 246 samples on record.
The other 37 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 246 samples on record, detections range from October 12, 1993 to February 11, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 142 of 151 results | Oct 12, 1993 | Sep 9, 2025 |
| Lead 1030 | Inorganic Chemical | 107 of 151 results | Oct 12, 1993 | Sep 9, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Feb 11, 2026 |
| Nitrate 1040 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Feb 11, 2026 |
| TTHM 2950 | Organic Chemical | 15 of 20 results | Jun 5, 2007 | Feb 11, 2026 |
| Bromoform 2942 | Organic Chemical | 13 of 15 results | Jun 5, 2007 | Feb 11, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 12 of 15 results | Jun 5, 2007 | Feb 11, 2026 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Mar 19, 2002 | Jan 15, 2025 |
| Nickel 1036 | Inorganic Chemical | 9 of 11 results | Jan 12, 2004 | Jan 15, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 15 results | Feb 29, 2024 | Feb 11, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 21 results | Jun 5, 2007 | Feb 18, 2025 |
| Chromium 1020 | Inorganic Chemical | 5 of 11 results | Jan 12, 2004 | Jan 15, 2025 |
| Selenium 1045 | Inorganic Chemical | 4 of 11 results | Jan 12, 2004 | Mar 24, 2008 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Oct 14, 2024 |
| Chloroform 2941 | Organic Chemical | 3 of 15 results | Feb 29, 2024 | Aug 27, 2024 |
| Nitrite 1041 | Inorganic Chemical | 2 of 23 results | Jan 24, 2011 | Jan 23, 2013 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 15 results | Apr 16, 2019 | Apr 16, 2019 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 15 results | Sep 14, 2017 | Sep 14, 2017 |
| Fluoride 1025 | Inorganic Chemical | 1 of 11 results | Apr 21, 2014 | Apr 21, 2014 |
| Cadmium 1015 | Inorganic Chemical | 1 of 11 results | Feb 16, 2005 | Feb 16, 2005 |
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 201–210 of 246 samples, newest first — collected June 7, 1994 to June 14, 1995. The summary above covers all 246.
20 results from the 10 samples listed here: 19 detected, 1 not detected. Across the whole record it is 388 of 855. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.511 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.087 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.104 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.294 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.227 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.011 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.234 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Jun 14, 1995, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.431 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.255 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.281 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.233 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 7, 1994, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-095L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.511 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-094L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.087 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-093L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.104 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-078L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.294 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-077L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.227 mg/l
-
Lead 1030
- Result
- 0.011 mg/l
-
- Collected
- Jun 14, 1995
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 950615-076L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.234 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Jun 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940608-102L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.431 mg/l
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Jun 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940608-101L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.255 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940608-100L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.281 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 7, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940608-099L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.233 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
Routine (10).