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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

MS0490022 , Stewart Water Assc #2

22 of the 57 analytes this system has been tested for have been detected at least once, across 142 samples on record.

The other 35 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 142 samples on record, detections range from October 8, 2003 to March 19, 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 Stewart Water Assc #2, 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 Sep 14, 2004 Aug 27, 2024
Lead 1030 Inorganic Chemical 55 of 60 results Sep 14, 2004 Aug 27, 2024
Barium 1010 Inorganic Chemical 10 of 10 results Oct 8, 2003 Mar 19, 2025
Fluoride 1025 Inorganic Chemical 9 of 10 results Oct 8, 2003 Mar 19, 2025
TTHM 2950 Organic Chemical 7 of 7 results Jul 21, 2004 Feb 25, 2025
Chromium 1020 Inorganic Chemical 6 of 10 results Mar 10, 2004 May 8, 2019
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 7 results Jun 16, 2010 Feb 25, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 24, 2019 Feb 25, 2025
Nickel 1036 Inorganic Chemical 3 of 10 results Apr 29, 2013 Sep 27, 2022
Dichloroacetic Acid 2451 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Trichloroacetic Acid 2452 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Dibromoacetic Acid 2454 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Chloroform 2941 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Bromodichloromethane 2943 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Dibromochloromethane 2944 Organic Chemical 3 of 4 results Aug 27, 2007 Jul 11, 2016
Arsenic 1005 Inorganic Chemical 2 of 10 results May 8, 2019 Sep 27, 2022
Radium-226 4020 Radionuclide 2 of 7 results Jun 25, 2018 Sep 10, 2019
Bromoform 2942 Organic Chemical 2 of 4 results Aug 27, 2007 Aug 12, 2013
Nitrite 1041 Inorganic Chemical 2 of 22 results Nov 21, 2005 May 13, 2009
Selenium 1045 Inorganic Chemical 2 of 10 results Mar 10, 2004 Mar 8, 2006
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 7 results Sep 10, 2019 Sep 10, 2019
Radium-228 4030 Radionuclide 1 of 7 results Sep 10, 2019 Sep 10, 2019

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 71–80 of 142 samples, newest first — collected June 22, 2010 to April 18, 2012. The summary above covers all 142.

34 results from the 10 samples listed here: 6 detected, 28 not detected. Across the whole record it is 188 of 604. 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 Stewart Water Assc #2, every result from 71 to 80 of 142 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
Apr 18, 2012 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120419-063RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2012 13:15, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Mar 7, 2012 01:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120308-081NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 01:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 01:00, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 01:00, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 22, 2012 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120223-001
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 13:00, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.222 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 13:00, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.222 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 13:00, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.2 pci/l Minimum Reporting Level , sample collected Feb 22, 2012 13:00, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 22, 2012 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120223-001RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2012 13:00, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Dec 12, 2011 14:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
111213-126
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 14:10, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.222 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 14:10, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.222 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 14:10, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.2 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 14:10, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Mar 7, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110308-080NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Oct 18, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
101019-037IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.003173 mg/l , sample collected Oct 18, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001733 mg/l , sample collected Oct 18, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Aug 30, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100831-033NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Jun 23, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100624-031PB
Laboratory
MSDH Lab
0.1771 mg/l , sample collected Jun 23, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0011 mg/l , sample collected Jun 23, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 22, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100624-040PB
Laboratory
MSDH Lab
0.007 mg/l , sample collected Jun 22, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0009 mg/l , sample collected Jun 22, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).