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 91–100 of 350 samples, newest first — collected August 30, 2016 to September 5, 2017. The summary above covers all 350.
37 results from the 10 samples listed here: 19 detected, 18 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 |
|---|---|---|
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Sep 5, 2017 14:05, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2017 14:10, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 4.96 ug/l , sample collected Sep 5, 2017 14:10, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2017 14:10, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.06 ug/l , sample collected Sep 5, 2017 14:10, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 6.02 ug/l , sample collected Sep 5, 2017 14:10, sampling point MRT000 | TTHM 2950 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.0023 mg/l , sample collected May 15, 2017 01:30, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.1684 mg/l , sample collected May 15, 2017 01:30, sampling point TF103 | Barium 1010 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Chromium 1020 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.262 mg/l , sample collected May 15, 2017 01:30, sampling point TF103 | Fluoride 1025 EPA method 300.0 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.0047 mg/l , sample collected May 15, 2017 01:30, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2017 01:30, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 8, 2017 01:45, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.12 mg/l , sample collected Jan 18, 2017 13:15, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| 0.12 mg/l , sample collected Jan 18, 2017 13:15, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2017 13:15, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
|
||
| 0.12 mg/l , sample collected Jan 18, 2017 12:45, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| 0.12 mg/l , sample collected Jan 18, 2017 12:45, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2017 12:45, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
|
||
| 0.0637 mg/l , sample collected Aug 30, 2016, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0014 mg/l , sample collected Aug 30, 2016, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0101 mg/l , sample collected Aug 30, 2016, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2016, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0228 mg/l , sample collected Aug 30, 2016 02:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0017 mg/l , sample collected Aug 30, 2016 02:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0112 mg/l , sample collected Aug 30, 2016 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 30, 2016 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
-
- Collected
- Sep 5, 2017 14:05
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170906-010HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.004 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Sep 5, 2017 14:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170906-009TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 4.96 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.06 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 6.02 ug/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- May 15, 2017 01:30
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 170516-012IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- 0.0023 mg/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Barium 1010 EPA method 200.8
- Result
- 0.1684 mg/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Fluoride 1025 EPA method 300.0
- Result
- 0.262 mg/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- 0.0047 mg/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
- Collected
- May 8, 2017 01:45
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 170509-010CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jan 18, 2017 13:15
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 170119-039NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 0.12 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 0.12 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Jan 18, 2017 12:45
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 170119-038NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 0.12 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 0.12 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2016
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 160831-060PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0637 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Aug 30, 2016
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 160831-055PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0101 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2016 02:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 160831-054PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0228 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Aug 30, 2016 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 160831-053PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0112 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).