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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 151–160 of 350 samples, newest first — collected March 6, 2012 to May 15, 2012. The summary above covers all 350.

59 results from the 10 samples listed here: 3 detected, 56 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 151 to 160 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
May 15, 2012 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120516-051RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2012 13:30, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
May 15, 2012 13:00
Sampling point
TF103
Sample type
Routine
Lab sample
120516-050RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2012 13:00, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
May 8, 2012 02:30
Sampling point
TF103
Sample type
Routine
Lab sample
120509-020VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:30, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Collected
May 8, 2012 02:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120509-019VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 8, 2012 02:15, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Collected
Mar 6, 2012 13:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120307-082
Laboratory
Radiation Safety Engineering
0.7 pci/l , sample collected Mar 6, 2012 13:30, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.347 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:30, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.347 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:30, sampling point TF102 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:30, sampling point TF102 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 6, 2012 14:10
Sampling point
TF103
Sample type
Routine
Lab sample
120307-083
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Mar 6, 2012 14:10, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 14:10, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.266 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 14:10, sampling point TF103 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 14:10, sampling point TF103 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 6, 2012 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120307-081
Laboratory
Radiation Safety Engineering
1.6 pci/l , sample collected Mar 6, 2012 13:45, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:45, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.281 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:45, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Mar 6, 2012 13:45, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 6, 2012 14:10
Sampling point
TF103
Sample type
Routine
Lab sample
120307-083RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 6, 2012 14:10, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 6, 2012 13:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120307-082RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 6, 2012 13:30, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 6, 2012 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120307-081RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 6, 2012 13:45, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012

Routine (10).