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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 121–130 of 296 samples, newest first — collected July 17, 2008 to June 17, 2009. 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.

Chemical and radiological sample results for Town of Wesson, every result from 121 to 130 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 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-077PB
Laboratory
MSDH Lab
0.005 mg/l , sample collected Jun 17, 2009, 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 Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-076PB
Laboratory
MSDH Lab
0.0041 mg/l , sample collected Jun 17, 2009, 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 Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-071PB
Laboratory
MSDH Lab
0.0039 mg/l , sample collected Jun 17, 2009, 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 Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-070PB
Laboratory
MSDH Lab
0.0045 mg/l , sample collected Jun 17, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0005 mg/l , sample collected Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-069PB
Laboratory
MSDH Lab
0.0011 mg/l , sample collected Jun 17, 2009, 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 Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 17, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090618-068PB
Laboratory
MSDH Lab
0.0035 mg/l , sample collected Jun 17, 2009, 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 Jun 17, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Apr 8, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090409-096NI
Laboratory
MSDH Lab
0.38 mg/l , sample collected Apr 8, 2009, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
0.38 mg/l , sample collected Apr 8, 2009, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Apr 8, 2009, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Sep 16, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080917-014TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. 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 16, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 16, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080917-007HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Sep 16, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Sep 16, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Jul 17, 2008
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
080717-075PB
Laboratory
MSDH Lab
0.006 mg/l , sample collected Jul 17, 2008, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 17, 2008, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2008

Routine (10).