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
MS0100007 , Reform Water Association
26 of the 57 analytes this system has been tested for have been detected at least once, across 249 samples on record.
The other 31 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 249 samples on record, detections range from July 28, 1993 to November 3, 2025. 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 | 121 of 152 results | Jul 28, 1993 | Sep 16, 2025 |
| Lead 1030 | Inorganic Chemical | 54 of 152 results | Jul 28, 1993 | Sep 16, 2025 |
| TTHM 2950 | Organic Chemical | 22 of 23 results | May 12, 2004 | Nov 3, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 17 results | Aug 18, 2014 | Nov 3, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 12 of 17 results | Aug 18, 2014 | Nov 3, 2025 |
| Chloroform 2941 | Organic Chemical | 11 of 17 results | Jul 10, 2007 | Nov 3, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Mar 12, 2002 | Jan 15, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 11 of 23 results | May 5, 2004 | Jan 29, 2019 |
| Nitrate 1040 | Inorganic Chemical | 11 of 23 results | May 5, 2004 | Jan 29, 2019 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 22 results | Jul 10, 2007 | Mar 6, 2024 |
| Bromoform 2942 | Organic Chemical | 6 of 17 results | Feb 26, 2024 | May 14, 2025 |
| Chromium 1020 | Inorganic Chemical | 6 of 11 results | Mar 12, 2002 | Jan 15, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 5 results | Dec 6, 2011 | Jul 12, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 16 results | Aug 18, 2014 | Dec 14, 2023 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Oct 14, 2024 |
| Nickel 1036 | Inorganic Chemical | 3 of 11 results | Mar 24, 2008 | Apr 21, 2014 |
| Fluoride 1025 | Inorganic Chemical | 2 of 11 results | Mar 24, 2008 | Jan 15, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 16 results | Aug 12, 2008 | Dec 14, 2023 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Mar 12, 2002 | Jan 12, 2004 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 16 results | Dec 14, 2023 | Dec 14, 2023 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 16 results | Jul 17, 2018 | Jul 17, 2018 |
| Cadmium 1015 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Selenium 1045 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Mercury 1035 | Inorganic Chemical | 1 of 11 results | Mar 12, 2002 | Mar 12, 2002 |
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 31–40 of 249 samples, newest first — collected July 7, 2022 to March 21, 2023. The summary above covers all 249.
20 results from the 10 samples listed here: 13 detected, 7 not detected. Across the whole record it is 325 of 874. 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 |
|---|---|---|
|
||
| 7.75 ug/l , sample collected Mar 21, 2023 14:05, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 17, 2023 15:15, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 17, 2023 15:15, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 17, 2023 15:15, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 0.0013 mg/l , sample collected Jul 7, 2022 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 7, 2022 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0013 mg/l , sample collected Jul 7, 2022 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 7, 2022 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0718 mg/l , sample collected Jul 7, 2022 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.9 ug/l , sample collected Jul 7, 2022 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0823 mg/l , sample collected Jul 7, 2022 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 1.8 ug/l , sample collected Jul 7, 2022 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.108 mg/l , sample collected Jul 7, 2022 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 2.2 ug/l , sample collected Jul 7, 2022 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0388 mg/l , sample collected Jul 7, 2022 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 1.6 ug/l , sample collected Jul 7, 2022 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0047 mg/l , sample collected Jul 7, 2022 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 7, 2022 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0055 mg/l , sample collected Jul 7, 2022 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 7, 2022 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
-
- Collected
- Mar 21, 2023 14:05
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230322-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 7.75 ug/l
-
- Collected
- Jan 17, 2023 15:15
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NI-230118-084
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
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
-
- Collected
- Jul 7, 2022 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0013 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 7, 2022 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0013 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 7, 2022 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0718 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.9 ug/l
-
- Collected
- Jul 7, 2022 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-028
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0823 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.8 ug/l
-
- Collected
- Jul 7, 2022 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-029
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.108 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.2 ug/l
-
- Collected
- Jul 7, 2022 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-030
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0388 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.6 ug/l
-
- Collected
- Jul 7, 2022 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0047 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 7, 2022 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220708-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0055 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).