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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

MS0380028 , NTS Utility Association

36 of the 72 analytes this system has been tested for have been detected at least once, across 315 samples on record.

The other 36 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 315 samples on record, detections range from September 29, 2003 to February 18, 2026. 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 NTS Utility Association, 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 143 of 143 results Apr 5, 2007 Jul 30, 2024
Lead 1030 Inorganic Chemical 56 of 143 results Apr 5, 2007 Jul 29, 2024
TTHM 2950 Organic Chemical 20 of 20 results Jun 28, 2004 Feb 18, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 18 of 20 results Aug 14, 2007 Dec 8, 2025
Barium 1010 Inorganic Chemical 18 of 18 results Sep 29, 2003 Feb 26, 2025
Chloroform 2941 Organic Chemical 15 of 15 results Aug 14, 2007 Feb 18, 2026
Bromodichloromethane 2943 Organic Chemical 15 of 15 results Aug 14, 2007 Feb 18, 2026
Dibromochloromethane 2944 Organic Chemical 15 of 15 results Aug 14, 2007 Feb 18, 2026
Trichloroacetic Acid 2452 Organic Chemical 14 of 14 results Sep 21, 2009 Dec 8, 2025
Dichloroacetic Acid 2451 Organic Chemical 13 of 14 results Sep 21, 2009 Dec 8, 2025
Chromium 1020 Inorganic Chemical 11 of 18 results Sep 29, 2003 Feb 26, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 5, 2012 Oct 2, 2012
Sodium 1052 Inorganic Chemical 8 of 8 results Mar 2, 2016 Dec 3, 2025
Nickel 1036 Inorganic Chemical 5 of 18 results Apr 4, 2005 Feb 26, 2025
Sulfate 1055 Inorganic Chemical 4 of 4 results Sep 29, 2003 Mar 2, 2016
Dichloromethane 2964 Organic Chemical 3 of 41 results Aug 9, 2004 Apr 29, 2013
Calcium 1016 Inorganic Chemical 2 of 2 results Mar 2, 2016 Mar 2, 2016
Magnesium 1031 Inorganic Chemical 2 of 2 results Mar 2, 2016 Mar 2, 2016
Potassium 1042 Inorganic Chemical 2 of 2 results Mar 2, 2016 Mar 2, 2016
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Carbon Dioxide 1901 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Color 1905 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
PH 1925 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Alkalinity, Total 1927 Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Mar 2, 2016 Mar 2, 2016
Calculated Sodium NACA Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
PH, Field Result PHFD Water Quality 2 of 2 results Mar 2, 2016 Mar 2, 2016
Mercury 1035 Inorganic Chemical 2 of 16 results Sep 29, 2003 Dec 3, 2007
Nitrite 1041 Inorganic Chemical 1 of 40 results Mar 26, 2024 Mar 26, 2024
Manganese 1032 Inorganic Chemical 1 of 2 results Mar 2, 2016 Mar 2, 2016
Monochloroacetic Acid 2450 Organic Chemical 1 of 14 results Jul 6, 2015 Jul 6, 2015
Dibromoacetic Acid 2454 Organic Chemical 1 of 14 results Jul 6, 2015 Jul 6, 2015
Xylenes, Total 2955 Organic Chemical 1 of 41 results Aug 2, 2010 Aug 2, 2010
Selenium 1045 Inorganic Chemical 1 of 18 results Apr 4, 2005 Apr 4, 2005
Cyanide 1024 Inorganic Chemical 1 of 16 results Mar 1, 2004 Mar 1, 2004

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 201–210 of 315 samples, newest first — collected May 14, 2012 to October 2, 2012. The summary above covers all 315.

48 results from the 10 samples listed here: 6 detected, 42 not detected. Across the whole record it is 401 of 1,742. 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 NTS Utility Association, every result from 201 to 210 of 315 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 2, 2012 13:38
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
201301120168
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Oct 2, 2012 13:38, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 13:38, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 13:38, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 13:38, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 1, 2012 11:00
Sampling point
TF081
Sample type
Routine
Lab sample
121002-008
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Oct 1, 2012 11:00, sampling point TF081 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 11:00, sampling point TF081 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 11:00, sampling point TF081 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 11:00, sampling point TF081 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 1, 2012 10:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
121002-007
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Oct 1, 2012 10:30, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 10:30, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 10:30, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 1, 2012 10:30, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Aug 27, 2012 02:10
Sampling point
TF081
Sample type
Routine
Lab sample
120828-035VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 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 Aug 27, 2012 02:10, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 Benzene 2990 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 Toluene 2991 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 02:10, sampling point TF081 Styrene 2996 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 20, 2012 01:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120821-007CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Aug 20, 2012 01:00, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jul 30, 2012 10:30
Sampling point
TF081
Sample type
Routine
Lab sample
120731-033
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Jul 30, 2012 10:30, sampling point TF081 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:30, sampling point TF081 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:30, sampling point TF081 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:30, sampling point TF081 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 10:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120731-032
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Jul 30, 2012 10:00, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:00, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.409 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:00, sampling point TF080 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Jul 30, 2012 10:00, sampling point TF080 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 10:30
Sampling point
TF081
Sample type
Routine
Lab sample
120731-033RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 10:30, sampling point TF081 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 30, 2012 10:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120731-032RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 30, 2012 10:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
May 14, 2012 11:00
Sampling point
TF081
Sample type
Routine
Lab sample
120515-079
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected May 14, 2012 11:00, sampling point TF081 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected May 14, 2012 11:00, sampling point TF081 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.534 pci/l Minimum Reporting Level , sample collected May 14, 2012 11:00, sampling point TF081 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected May 14, 2012 11:00, sampling point TF081 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012

Routine (10).