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 221–230 of 350 samples, newest first — collected April 9, 2007 to July 17, 2007. The summary above covers all 350.
23 results from the 10 samples listed here: 14 detected, 9 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 |
|---|---|---|
|
||
| 0.0402 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.6018 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0006 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.037 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.1565 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0015 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.028 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0092 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.5706 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.002 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.005 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0011 mg/l , sample collected Jul 17, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0374 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 25, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 25, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 25, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 25, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-390PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0402 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-391PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6018 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-392PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.037 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-389PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1565 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-393PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.028 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0092 mg/l
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-074PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.5706 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.002 mg/l
-
- Collected
- Jul 17, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070718-073PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.005 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0011 mg/l
-
- Collected
- Jun 25, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070626-036HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0374 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Jun 25, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070626-022TH
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
- Collected
- Apr 9, 2007
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 070410-077NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
Routine (10).