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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

MS0060008 , Town of Duncan

27 of the 58 analytes this system has been tested for have been detected at least once, across 278 samples on record.

The other 31 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 278 samples on record, detections range from July 20, 1993 to September 18, 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 Duncan, 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 65 of 84 results Jul 20, 1993 Sep 18, 2025
Lead 1030 Inorganic Chemical 55 of 84 results Jul 20, 1993 Sep 18, 2025
TTHM 2950 Organic Chemical 43 of 45 results Sep 27, 2004 Mar 18, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 36 of 40 results Jun 21, 2007 Mar 18, 2025
Chloroform 2941 Organic Chemical 24 of 24 results Jun 21, 2007 Oct 15, 2020
Bromodichloromethane 2943 Organic Chemical 24 of 24 results Jun 21, 2007 Oct 15, 2020
Dibromochloromethane 2944 Organic Chemical 24 of 24 results Jun 21, 2007 Oct 15, 2020
Dichloroacetic Acid 2451 Organic Chemical 22 of 22 results Aug 18, 2008 Oct 15, 2020
Trichloroacetic Acid 2452 Organic Chemical 22 of 22 results Aug 18, 2008 Oct 15, 2020
Dibromoacetic Acid 2454 Organic Chemical 22 of 22 results Aug 18, 2008 Oct 15, 2020
Bromoform 2942 Organic Chemical 21 of 24 results Aug 18, 2008 Oct 15, 2020
Barium 1010 Inorganic Chemical 20 of 20 results Jan 29, 2002 Jan 15, 2025
Chromium 1020 Inorganic Chemical 16 of 20 results Jan 29, 2002 Jan 15, 2025
Fluoride 1025 Inorganic Chemical 15 of 15 results Jan 29, 2002 Jan 15, 2025
Selenium 1045 Inorganic Chemical 10 of 20 results Jan 28, 2004 Mar 27, 2024
Nickel 1036 Inorganic Chemical 9 of 20 results Mar 21, 2005 May 2, 2017
Arsenic 1005 Inorganic Chemical 8 of 20 results Mar 21, 2005 Jan 15, 2025
Monochloroacetic Acid 2450 Organic Chemical 5 of 22 results Aug 18, 2008 Jan 13, 2020
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 7, 2011 Jul 11, 2012
Monobromoacetic Acid 2453 Organic Chemical 4 of 22 results Jun 26, 2018 Oct 15, 2020
Xylenes, Total 2955 Organic Chemical 4 of 23 results Sep 18, 2012 Jul 11, 2013
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Jun 21, 2012 Jan 23, 2013
Nitrite 1041 Inorganic Chemical 2 of 35 results Jan 10, 2022 Jan 10, 2022
Sodium 1052 Inorganic Chemical 2 of 2 results Oct 28, 2019 Oct 28, 2019
Thallium, Total 1085 Inorganic Chemical 1 of 20 results Aug 19, 2008 Aug 19, 2008
Antimony, Total 1074 Inorganic Chemical 1 of 20 results Mar 21, 2005 Mar 21, 2005
Beryllium, Total 1075 Inorganic Chemical 1 of 20 results Mar 21, 2005 Mar 21, 2005

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 161–170 of 278 samples, newest first — collected June 21, 2012 to October 8, 2012. The summary above covers all 278.

71 results from the 10 samples listed here: 14 detected, 57 not detected. Across the whole record it is 465 of 1,323. 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 Duncan, every result from 161 to 170 of 278 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
Oct 8, 2012 10:40
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
121009-012VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Benzene 2990 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Toluene 2991 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2012 10:40, sampling point TF103 Styrene 2996 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Collected
Sep 18, 2012 09:58
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
120919-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
0.629 ug/l , sample collected Sep 18, 2012 09:58, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Benzene 2990 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Toluene 2991 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 18, 2012 09:58, sampling point TF103 Styrene 2996 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Collected
Sep 6, 2012 11:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
120907-011
Laboratory
Radiation Safety Engineering
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected Sep 6, 2012 11:30, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected Sep 6, 2012 11:30, sampling point TF103 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Sep 6, 2012 11:30, sampling point TF103 Radium-228 4030 EPA method 904 Jul 1, 2012 – Sep 30, 2012
0.7 pci/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 Sep 6, 2012 11:30, sampling point TF103 Gross Alpha Particle Activity 4109 EPA method 00-02 Jul 1, 2012 – Sep 30, 2012
Collected
Sep 6, 2012 11:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
120907-011RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2012 11:30, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120803-001TH
Laboratory
MSDH Lab
21.7 ug/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
3.32 ug/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
20.9 ug/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
17.5 ug/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
63.4 ug/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Collected
Aug 2, 2012 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120803-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 03:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.015 mg/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 03:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.034 mg/l , sample collected Aug 2, 2012 03:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2012 – Dec 31, 2012
Collected
Jul 11, 2012 13:47
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
201211140303
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Jul 11, 2012 13:47, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:47, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.234 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:47, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 11, 2012 13:47, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 15:28
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120711-061
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Jul 10, 2012 15:28, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:28, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.234 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:28, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:28, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 15:28
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120711-061RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 10, 2012 15:28, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jun 21, 2012 14:40
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
120622-008
Laboratory
Radiation Safety Engineering
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected Jun 21, 2012 14:40, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected Jun 21, 2012 14:40, sampling point TF103 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.26 pci/l Minimum Reporting Level , sample collected Jun 21, 2012 14:40, sampling point TF103 Radium-228 4030 EPA method 904 Apr 1, 2012 – Jun 30, 2012
0.7 pci/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 21, 2012 14:40, sampling point TF103 Gross Alpha Particle Activity 4109 EPA method 00-02 Apr 1, 2012 – Jun 30, 2012

Routine (10).