Skip to main content
Alpha

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 21–30 of 157 samples, newest first — collected May 24, 2023 to August 22, 2023. The summary above covers all 157.

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

We withheld the location of 9 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Town of Prentiss, every result from 21 to 30 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
Aug 22, 2023 08:15
Sampling point
LC0021 Location withheld
Sample type
Routine
Lab sample
PB-230823-037
Laboratory
MSDH Lab
0.0012 mg/l , sample collected Aug 22, 2023 08:15, sampling point LC0021 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 08:15, sampling point LC0021 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 08:05
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-230823-036
Laboratory
MSDH Lab
0.0021 mg/l , sample collected Aug 22, 2023 08:05, sampling point LC0020 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 08:05, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 06:15
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-230823-035
Laboratory
MSDH Lab
0.01 mg/l , sample collected Aug 22, 2023 06:15, sampling point LC0017 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 06:15, sampling point LC0017 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 06:45
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-230823-034
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Aug 22, 2023 06:45, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 06:45, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 07:30
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-230823-033
Laboratory
MSDH Lab
0.0039 mg/l , sample collected Aug 22, 2023 07:30, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:30, sampling point LC0012 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 07:10
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230823-032
Laboratory
MSDH Lab
0.0036 mg/l , sample collected Aug 22, 2023 07:10, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:10, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 06:20
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230823-031
Laboratory
MSDH Lab
0.0068 mg/l , sample collected Aug 22, 2023 06:20, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 06:20, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 07:05
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230823-030
Laboratory
MSDH Lab
0.0043 mg/l , sample collected Aug 22, 2023 07:05, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:05, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 22, 2023 06:30
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230823-029
Laboratory
MSDH Lab
0.0046 mg/l , sample collected Aug 22, 2023 06:30, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 06:30, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
May 24, 2023 14:02
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230525-003
Laboratory
MSDH Lab
13.3 ug/l , sample collected May 24, 2023 14:02, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).