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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.

Every analyte ever detected for Town of Derma, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 101–110 of 350 samples, newest first — collected January 20, 2015 to August 30, 2016. The summary above covers all 350.

24 results from the 10 samples listed here: 9 detected, 15 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.

Chemical and radiological sample results for Town of Derma, every result from 101 to 110 of 350 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Aug 30, 2016 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-052PB
Laboratory
MSDH Lab
0.4979 mg/l , sample collected Aug 30, 2016 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0094 mg/l , sample collected Aug 30, 2016 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 30, 2016 05:17
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-049PB
Laboratory
MSDH Lab
0.0233 mg/l , sample collected Aug 30, 2016 05:17, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0016 mg/l , sample collected Aug 30, 2016 05:17, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 30, 2016 05:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-048PB
Laboratory
MSDH Lab
0.0048 mg/l , sample collected Aug 30, 2016 05:45, 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 05:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 30, 2016 06:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-047PB
Laboratory
MSDH Lab
0.1977 mg/l , sample collected Aug 30, 2016 06:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0027 mg/l , sample collected Aug 30, 2016 06:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 30, 2016 04:55
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-046PB
Laboratory
MSDH Lab
0.0298 mg/l , sample collected Aug 30, 2016 04:55, 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 04:55, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 29, 2016 14:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160831-051PB
Laboratory
MSDH Lab
0.1043 mg/l , sample collected Aug 29, 2016 14:30, 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 29, 2016 14:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Mar 16, 2016 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
160317-036NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Mar 16, 2016 13:20
Sampling point
TF103
Sample type
Routine
Lab sample
160317-033NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:20, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:20, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2016 13:20, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Jan 20, 2015 14:00
Sampling point
TF103
Sample type
Routine
Lab sample
150121-104NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 14:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 14:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 14:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Jan 20, 2015 13:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
150121-086NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 13:45, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 13:45, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2015 13:45, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015

Routine (10).