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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

MS0150011 , Town of Wesson

23 of the 64 analytes this system has been tested for have been detected at least once, across 296 samples on record.

The other 41 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 296 samples on record, detections range from December 16, 1993 to September 25, 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 Wesson, 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 174 of 212 results Dec 16, 1993 Sep 25, 2025
Lead 1030 Inorganic Chemical 68 of 212 results Dec 16, 1993 Sep 25, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 20 of 22 results May 3, 2004 Feb 24, 2025
Nitrate 1040 Inorganic Chemical 20 of 22 results May 3, 2004 Feb 24, 2025
Barium 1010 Inorganic Chemical 12 of 12 results Apr 9, 2002 Jan 30, 2025
Nickel 1036 Inorganic Chemical 9 of 12 results Mar 2, 2005 Jan 30, 2025
Fluoride 1025 Inorganic Chemical 7 of 14 results Apr 9, 2002 May 26, 2022
Sodium 1052 Inorganic Chemical 5 of 5 results Sep 26, 2019 Oct 28, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 11 results Jul 11, 2007 Aug 25, 2020
Chromium 1020 Inorganic Chemical 4 of 12 results Apr 9, 2002 Jan 30, 2025
Calcium 1016 Inorganic Chemical 2 of 2 results Apr 8, 2021 Apr 8, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Apr 8, 2021 Apr 8, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Apr 8, 2021 Apr 8, 2021
Monochloroacetic Acid 2450 Organic Chemical 2 of 6 results Jul 16, 2018 Jul 18, 2019
Monobromoacetic Acid 2453 Organic Chemical 2 of 6 results Sep 16, 2008 Jul 18, 2019
Gross Alpha Particle Activity 4109 Radionuclide 2 of 4 results Jun 28, 2012 Sep 20, 2012
TTHM 2950 Organic Chemical 2 of 11 results Jul 11, 2007 Sep 16, 2008
Selenium 1045 Inorganic Chemical 2 of 12 results Sep 8, 2003 Mar 2, 2005
Dichloroacetic Acid 2451 Organic Chemical 1 of 6 results Aug 25, 2020 Aug 25, 2020
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 2 results Dec 12, 2011 Dec 12, 2011
Radium-228 4030 Radionuclide 1 of 2 results Dec 12, 2011 Dec 12, 2011
Cadmium 1015 Inorganic Chemical 1 of 12 results Mar 2, 2005 Mar 2, 2005
Mercury 1035 Inorganic Chemical 1 of 12 results Jan 26, 2004 Jan 26, 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 11–20 of 296 samples, newest first — collected August 21, 2024 to June 30, 2025. The summary above covers all 296.

28 results from the 10 samples listed here: 13 detected, 15 not detected. Across the whole record it is 345 of 894. 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 6 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 Wesson, every result from 11 to 20 of 296 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
Jun 30, 2025 13:36
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250630-007
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 30, 2025 13:36, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Feb 24, 2025 10:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250224-001
Laboratory
MSDH Lab
0.768 mg/l , sample collected Feb 24, 2025 10:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
0.768 mg/l , sample collected Feb 24, 2025 10:30, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 10:30, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jan 30, 2025 10:02
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250130-007
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0363 mg/l , sample collected Jan 30, 2025 10:02, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Jan 30, 2025 10:02, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0012 mg/l , sample collected Jan 30, 2025 10:02, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 30, 2025 10:02, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Oct 28, 2024 10:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-241028-001
Laboratory
MSDH Lab
3.51 mg/l , sample collected Oct 28, 2024 10:20, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-240829-441
Laboratory
MSDH Lab
0.0109 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2024 09:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-240829-440
Laboratory
MSDH Lab
0.173 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2024 09:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-240829-439
Laboratory
MSDH Lab
0.514 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
1.1 ug/l , sample collected Aug 21, 2024 09:00, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-240829-438
Laboratory
MSDH Lab
0.155 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2024 09:00, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-240829-437
Laboratory
MSDH Lab
0.0872 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2024 09:00, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 21, 2024 09:00
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-240829-436
Laboratory
MSDH Lab
0.197 mg/l , sample collected Aug 21, 2024 09:00, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 21, 2024 09:00, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024

Routine (10).