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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 51–60 of 142 samples, newest first — collected June 5, 2013 to September 28, 2015. The summary above covers all 142.

28 results from the 10 samples listed here: 19 detected, 9 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 51 to 60 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
Sep 28, 2015 04:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
151001-028PB
Laboratory
MSDH Lab
0.1268 mg/l , sample collected Sep 28, 2015 04:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0005 mg/l , sample collected Sep 28, 2015 04:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Sep 28, 2015 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
151001-027PB
Laboratory
MSDH Lab
0.0749 mg/l , sample collected Sep 28, 2015 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.001 mg/l , sample collected Sep 28, 2015 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Sep 28, 2015 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
151001-026PB
Laboratory
MSDH Lab
0.1437 mg/l , sample collected Sep 28, 2015 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.001 mg/l , sample collected Sep 28, 2015 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Jun 10, 2015 02:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150611-023CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 10, 2015 02:15, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Apr 6, 2015 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150407-082NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 13:45, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 13:45, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 13:45, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Nov 10, 2014 14:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
141111-040NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 14:20, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 14:20, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 10, 2014 14:20, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Aug 12, 2013 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130813-015TH
Laboratory
MSDH Lab
10.9 ug/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
3.51 ug/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
16.7 ug/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
18.7 ug/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
49.8 ug/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 12, 2013 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130813-012HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 12, 2013 02:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 12, 2013 02:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.015 mg/l , sample collected Aug 12, 2013 02:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 5, 2013 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130606-036PB
Laboratory
MSDH Lab
0.0213 mg/l , sample collected Jun 5, 2013 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0006 mg/l , sample collected Jun 5, 2013 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 5, 2013 06:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130606-035PB
Laboratory
MSDH Lab
0.154 mg/l , sample collected Jun 5, 2013 06:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0005 mg/l , sample collected Jun 5, 2013 06:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013

Routine (10).