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

MS0410013 , Town of Shannon

35 of the 72 analytes this system has been tested for have been detected at least once, across 256 samples on record.

The other 37 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 256 samples on record, detections range from November 24, 2003 to November 17, 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 Shannon, 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 67 of 67 results Sep 12, 2007 Jul 22, 2025
Lead 1030 Inorganic Chemical 47 of 67 results Sep 12, 2007 Jul 22, 2025
Barium 1010 Inorganic Chemical 25 of 25 results Nov 24, 2003 Mar 10, 2025
Chromium 1020 Inorganic Chemical 21 of 25 results Nov 24, 2003 Jan 10, 2024
Nickel 1036 Inorganic Chemical 16 of 25 results Nov 29, 2004 Mar 10, 2025
Fluoride 1025 Inorganic Chemical 14 of 26 results Nov 24, 2003 Mar 10, 2025
Selenium 1045 Inorganic Chemical 10 of 25 results Nov 24, 2003 Mar 27, 2006
Arsenic 1005 Inorganic Chemical 7 of 25 results Nov 29, 2004 Mar 10, 2025
Nitrite 1041 Inorganic Chemical 5 of 53 results Feb 20, 2013 Mar 10, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Mar 29, 2012 Oct 3, 2012
TTHM 2950 Organic Chemical 4 of 22 results Oct 16, 2007 Nov 17, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results May 11, 2016 Feb 10, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 21 results Jun 8, 2010 May 26, 2022
Thallium, Total 1085 Inorganic Chemical 3 of 25 results Mar 30, 2005 Apr 28, 2020
Cyanide 1024 Inorganic Chemical 3 of 23 results Dec 20, 2005 May 22, 2017
Sulfate 1055 Inorganic Chemical 3 of 3 results Nov 24, 2003 May 11, 2016
Bromoform 2942 Organic Chemical 2 of 17 results Sep 30, 2020 Nov 17, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 53 results Mar 10, 2025 Mar 10, 2025
Xylenes, Total 2955 Organic Chemical 2 of 31 results Feb 16, 2005 May 11, 2006
Cadmium 1015 Inorganic Chemical 2 of 25 results Mar 2, 2005 Mar 2, 2005
Dibromochloromethane 2944 Organic Chemical 1 of 17 results Nov 17, 2025 Nov 17, 2025
Monochloroacetic Acid 2450 Organic Chemical 1 of 15 results Aug 12, 2019 Aug 12, 2019
Calcium 1016 Inorganic Chemical 1 of 1 result May 11, 2016 May 11, 2016
Chloride 1017 Inorganic Chemical 1 of 1 result May 11, 2016 May 11, 2016
Magnesium 1031 Inorganic Chemical 1 of 1 result May 11, 2016 May 11, 2016
Manganese 1032 Inorganic Chemical 1 of 1 result May 11, 2016 May 11, 2016
Potassium 1042 Inorganic Chemical 1 of 1 result May 11, 2016 May 11, 2016
Residue, Total, Filterable 1057 Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Carbon Dioxide 1901 Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Color 1905 Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Alkalinity, Total 1927 Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Calculated Sodium NACA Water Quality 1 of 1 result May 11, 2016 May 11, 2016
PH, Field Result PHFD Water Quality 1 of 1 result May 11, 2016 May 11, 2016
Ethylbenzene 2992 Organic Chemical 1 of 31 results Feb 16, 2005 Feb 16, 2005

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 151–160 of 256 samples, newest first — collected August 3, 2011 to August 3, 2011. The summary above covers all 256.

20 results from the 10 samples listed here: 16 detected, 4 not detected. Across the whole record it is 260 of 1,503. 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 Shannon, every result from 151 to 160 of 256 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 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-073PB
Laboratory
MSDH Lab
0.1689 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0023 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-072PB
Laboratory
MSDH Lab
0.3716 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0016 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-071PB
Laboratory
MSDH Lab
0.2491 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-070PB
Laboratory
MSDH Lab
0.0977 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-069PB
Laboratory
MSDH Lab
0.3096 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-068PB
Laboratory
MSDH Lab
0.2379 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.001 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-067PB
Laboratory
MSDH Lab
0.1421 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0013 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-066PB
Laboratory
MSDH Lab
0.0609 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0006 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-065PB
Laboratory
MSDH Lab
0.1117 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0016 mg/l , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 3, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110804-064PB
Laboratory
MSDH Lab
0.1081 mg/l , sample collected Aug 3, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 3, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013

Routine (10).