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
MS0070006 , Town of Derma
20 of the 57 analytes this system has been tested for have been detected at least once, across 350 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 350 samples on record, detections range from October 21, 1993 to June 19, 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 | 104 of 154 results | Oct 21, 1993 | Jun 19, 2025 |
| Lead 1030 | Inorganic Chemical | 88 of 154 results | Oct 21, 1993 | Jun 19, 2025 |
| Arsenic 1005 | Inorganic Chemical | 22 of 22 results | Jun 25, 2002 | Jan 14, 2025 |
| Barium 1010 | Inorganic Chemical | 22 of 22 results | Jun 25, 2002 | Jan 14, 2025 |
| Fluoride 1025 | Inorganic Chemical | 22 of 22 results | Jun 25, 2002 | Jan 14, 2025 |
| Selenium 1045 | Inorganic Chemical | 20 of 22 results | Jun 25, 2002 | Jan 9, 2024 |
| Chromium 1020 | Inorganic Chemical | 17 of 22 results | Jun 25, 2002 | Jan 14, 2025 |
| Nickel 1036 | Inorganic Chemical | 16 of 22 results | Jun 25, 2002 | Jan 14, 2025 |
| TTHM 2950 | Organic Chemical | 15 of 20 results | Jun 25, 2007 | Apr 30, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 6, 2012 | Oct 10, 2012 |
| Bromoform 2942 | Organic Chemical | 9 of 15 results | Sep 5, 2017 | Apr 30, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 9 of 50 results | Jun 7, 2006 | Jan 18, 2017 |
| Nitrate 1040 | Inorganic Chemical | 9 of 50 results | Jun 7, 2006 | Jan 18, 2017 |
| Nitrite 1041 | Inorganic Chemical | 7 of 50 results | Jun 7, 2006 | May 19, 2010 |
| Dibromoacetic Acid 2454 | Organic Chemical | 6 of 15 results | Sep 5, 2017 | Apr 30, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 25, 2019 | Oct 22, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 22 results | Jun 25, 2007 | Jun 16, 2021 |
| Dibromochloromethane 2944 | Organic Chemical | 3 of 15 results | Sep 5, 2017 | Apr 30, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 37 results | Apr 8, 2008 | Apr 22, 2009 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 15 results | Jun 4, 2019 | Jun 4, 2019 |
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 71–80 of 350 samples, newest first — collected July 29, 2019 to July 31, 2019. The summary above covers all 350.
20 results from the 10 samples listed here: 15 detected, 5 not detected. Across the whole record it is 398 of 1,761. 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 |
|---|---|---|
|
||
| 0.225 mg/l , sample collected Jul 31, 2019 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2019 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.02 mg/l , sample collected Jul 30, 2019 20:16, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2019 20:16, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0765 mg/l , sample collected Jul 30, 2019 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2019 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0551 mg/l , sample collected Jul 30, 2019 06:49, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0028 mg/l , sample collected Jul 30, 2019 06:49, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0291 mg/l , sample collected Jul 30, 2019 09:10, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0011 mg/l , sample collected Jul 30, 2019 09:10, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.3097 mg/l , sample collected Jul 30, 2019 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0017 mg/l , sample collected Jul 30, 2019 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.013 mg/l , sample collected Jul 30, 2019 05:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2019 05:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.3103 mg/l , sample collected Jul 29, 2019 06:20, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0033 mg/l , sample collected Jul 29, 2019 06:20, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.5015 mg/l , sample collected Jul 29, 2019 16:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 29, 2019 16:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0136 mg/l , sample collected Jul 29, 2019 15:20, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.001 mg/l , sample collected Jul 29, 2019 15:20, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Jul 31, 2019 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-036PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.225 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 30, 2019 20:16
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-037PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.02 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 30, 2019 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-041PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0765 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 30, 2019 06:49
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-040PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0551 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0028 mg/l
-
- Collected
- Jul 30, 2019 09:10
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-042PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0291 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0011 mg/l
-
- Collected
- Jul 30, 2019 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-039PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3097 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Jul 30, 2019 05:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-038PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.013 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 29, 2019 06:20
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-045PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3103 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0033 mg/l
-
- Collected
- Jul 29, 2019 16:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-044PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.5015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 29, 2019 15:20
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190801-043PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0136 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.001 mg/l
Routine (10).