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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

MS0330008 , Town of Prentiss

19 of the 58 analytes this system has been tested for have been detected at least once, across 157 samples on record.

The other 39 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 157 samples on record, detections range from September 24, 2003 to July 9, 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 Town of Prentiss, 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 60 of 60 results Jul 24, 2007 Aug 22, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 23 of 23 results May 17, 2004 Jul 9, 2026
Nitrate 1040 Inorganic Chemical 23 of 23 results May 17, 2004 Jul 9, 2026
TTHM 2950 Organic Chemical 19 of 21 results Jun 14, 2004 Dec 17, 2025
Chloroform 2941 Organic Chemical 14 of 16 results Aug 8, 2007 Dec 17, 2025
Lead 1030 Inorganic Chemical 14 of 60 results Jul 24, 2007 Sep 10, 2020
Bromodichloromethane 2943 Organic Chemical 11 of 16 results Sep 22, 2009 Dec 17, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Feb 25, 2025
Fluoride 1025 Inorganic Chemical 9 of 10 results Sep 24, 2003 May 17, 2022
Dibromochloromethane 2944 Organic Chemical 7 of 16 results Sep 22, 2009 Oct 22, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 22 results Sep 22, 2009 May 24, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 17, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 12, 2011 Jul 17, 2012
Radium-226 4020 Radionuclide 5 of 5 results Dec 12, 2011 Jul 17, 2012
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 17, 2019 Feb 4, 2025
Monobromoacetic Acid 2453 Organic Chemical 2 of 16 results Aug 6, 2019 Sep 8, 2020
Dichloroacetic Acid 2451 Organic Chemical 2 of 16 results Jun 4, 2019 Aug 6, 2019
Dibromoacetic Acid 2454 Organic Chemical 1 of 16 results Jun 4, 2019 Jun 4, 2019
Nickel 1036 Inorganic Chemical 1 of 10 results Feb 23, 2004 Feb 23, 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 101–110 of 157 samples, newest first — collected July 26, 2011 to May 7, 2012. The summary above covers all 157.

33 results from the 10 samples listed here: 16 detected, 17 not detected. Across the whole record it is 219 of 674. 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 Prentiss, every result from 101 to 110 of 157 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 7, 2012 01:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120508-004CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 7, 2012 01:45, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Apr 23, 2012 15:16
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120424-095
Laboratory
Radiation Safety Engineering
1.1 pci/l , sample collected Apr 23, 2012 15:16, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.4 pci/l , sample collected Apr 23, 2012 15:16, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
0.4 pci/l , sample collected Apr 23, 2012 15:16, sampling point TF080 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.27 pci/l Minimum Reporting Level , sample collected Apr 23, 2012 15:16, sampling point TF080 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 23, 2012 13:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120424-095RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 23, 2012 13:15, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 9, 2012 03:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120412-059IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.01518 mg/l , sample collected Apr 9, 2012 03:15, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.871 mg/l , sample collected Apr 9, 2012 03:15, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 9, 2012 03:15, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 15, 2012 04:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120216-038NI
Laboratory
MSDH Lab
0.4 mg/l , sample collected Feb 15, 2012 04:20, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
0.4 mg/l , sample collected Feb 15, 2012 04:20, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 15, 2012 04:20, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 14, 2012 15:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120215-055
Laboratory
Radiation Safety Engineering
1.1 pci/l , sample collected Feb 14, 2012 15:05, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.4 pci/l , sample collected Feb 14, 2012 15:05, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
0.4 pci/l , sample collected Feb 14, 2012 15:05, sampling point TF080 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.27 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 15:05, sampling point TF080 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 14, 2012 15:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120215-055RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2012 15:05, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Dec 12, 2011 15:35
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
111213-083
Laboratory
Radiation Safety Engineering
1.1 pci/l , sample collected Dec 12, 2011 15:35, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
0.4 pci/l , sample collected Dec 12, 2011 15:35, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
0.4 pci/l , sample collected Dec 12, 2011 15:35, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.27 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 15:35, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Jul 26, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110727-146PB
Laboratory
MSDH Lab
0.0055 mg/l , sample collected Jul 26, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0007 mg/l , sample collected Jul 26, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jul 26, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110727-145PB
Laboratory
MSDH Lab
0.0062 mg/l , sample collected Jul 26, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 26, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011

Routine (10).