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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 101–110 of 142 samples, newest first — collected June 30, 2005 to July 27, 2006. The summary above covers all 142.

69 results from the 10 samples listed here: 12 detected, 57 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 101 to 110 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
Jul 27, 2006
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
060728-068PB
Laboratory
MSDH Lab
0.0181 mg/l , sample collected Jul 27, 2006, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2006
0.0019 mg/l , sample collected Jul 27, 2006, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2006
Collected
Jul 17, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060718-066NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 17, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 17, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 17, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Mar 8, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060309-052IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.003386 mg/l , sample collected Mar 8, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.153916 mg/l , sample collected Mar 8, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.000659 mg/l , sample collected Mar 8, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Mar 8, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060309-028CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Nov 30, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
051201-010VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 30, 2005, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Nov 21, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
051122-052NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 21, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 21, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
0.65 mg/l , sample collected Nov 21, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Sep 21, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050922-038VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 21, 2005, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Jun 30, 2005
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
050701-134PB
Laboratory
MSDH Lab
0.0561 mg/l , sample collected Jun 30, 2005, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005
0.0012 mg/l , sample collected Jun 30, 2005, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005
Collected
Jun 30, 2005
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
050701-135PB
Laboratory
MSDH Lab
0.0284 mg/l , sample collected Jun 30, 2005, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005
0.0017 mg/l , sample collected Jun 30, 2005, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005
Collected
Jun 30, 2005
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
050701-094PB
Laboratory
MSDH Lab
0.2399 mg/l , sample collected Jun 30, 2005, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005
0.0019 mg/l , sample collected Jun 30, 2005, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2005 – Jun 30, 2005

Routine (10).