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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

MS0320010 , McNair-Stampley W/A #2

33 of the 71 analytes this system has been tested for have been detected at least once, across 171 samples on record.

The other 38 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 171 samples on record, detections range from September 24, 2003 to June 29, 2026. 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 McNair-Stampley W/A #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 92 of 92 results Oct 20, 2008 Aug 31, 2023
Lead 1030 Inorganic Chemical 73 of 92 results Oct 20, 2008 Aug 31, 2023
Barium 1010 Inorganic Chemical 10 of 10 results Sep 24, 2003 Mar 5, 2025
Fluoride 1025 Inorganic Chemical 8 of 11 results Sep 24, 2003 Mar 5, 2025
TTHM 2950 Organic Chemical 7 of 14 results Oct 24, 2007 Jun 29, 2026
Chromium 1020 Inorganic Chemical 5 of 10 results Mar 23, 2005 Mar 25, 2019
Bromodichloromethane 2943 Organic Chemical 4 of 13 results Dec 31, 2025 Jun 29, 2026
Dibromochloromethane 2944 Organic Chemical 4 of 13 results Dec 31, 2025 Jun 29, 2026
Chloroform 2941 Organic Chemical 3 of 13 results Aug 26, 2012 Jun 29, 2026
Sodium 1052 Inorganic Chemical 3 of 3 results Apr 26, 2017 Feb 5, 2025
Sulfate 1055 Inorganic Chemical 3 of 3 results Sep 24, 2003 Apr 26, 2017
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 13 results Sep 4, 2007 Aug 26, 2012
Bromoform 2942 Organic Chemical 2 of 13 results Dec 31, 2025 Dec 31, 2025
Nitrite 1041 Inorganic Chemical 2 of 21 results Aug 10, 2005 Mar 26, 2024
Nickel 1036 Inorganic Chemical 2 of 10 results Sep 24, 2003 Jan 14, 2009
Calcium 1016 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Chloride 1017 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Iron 1028 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Magnesium 1031 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Manganese 1032 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Potassium 1042 Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Color 1905 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Alkalinity, Total 1927 Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Apr 26, 2017 Apr 26, 2017
Calculated Sodium NACA Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
PH, Field Result PHFD Water Quality 1 of 1 result Apr 26, 2017 Apr 26, 2017
Monochloroacetic Acid 2450 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Dichloroacetic Acid 2451 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Trichloroacetic Acid 2452 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012
Dibromoacetic Acid 2454 Organic Chemical 1 of 11 results Aug 26, 2012 Aug 26, 2012

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 171 samples, newest first — collected July 15, 2014 to April 18, 2016. The summary above covers all 171.

30 results from the 10 samples listed here: 13 detected, 17 not detected. Across the whole record it is 239 of 694. 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 McNair-Stampley W/A #2, every result from 51 to 60 of 171 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, 2016 13:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
160419-079NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 18, 2016 13:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 18, 2016 13:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 18, 2016 13:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Apr 6, 2015 11:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150407-053IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0639 mg/l , sample collected Apr 6, 2015 11:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0042 mg/l , sample collected Apr 6, 2015 11:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 6, 2015 11:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Mar 23, 2015 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150324-123NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 23, 2015 14:00, 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 Mar 23, 2015 14:00, 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 Mar 23, 2015 14:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Mar 9, 2015 03:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150310-057CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 9, 2015 03:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jul 15, 2014 09:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-020PB
Laboratory
MSDH Lab
0.0896 mg/l , sample collected Jul 15, 2014 09:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0011 mg/l , sample collected Jul 15, 2014 09:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 09:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-019PB
Laboratory
MSDH Lab
0.0174 mg/l , sample collected Jul 15, 2014 09:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0013 mg/l , sample collected Jul 15, 2014 09:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 10:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-018PB
Laboratory
MSDH Lab
0.0803 mg/l , sample collected Jul 15, 2014 10:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0015 mg/l , sample collected Jul 15, 2014 10:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-017PB
Laboratory
MSDH Lab
0.0152 mg/l , sample collected Jul 15, 2014 10:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0015 mg/l , sample collected Jul 15, 2014 10:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 10:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-016PB
Laboratory
MSDH Lab
0.1227 mg/l , sample collected Jul 15, 2014 10:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0037 mg/l , sample collected Jul 15, 2014 10:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jul 15, 2014 09:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140717-015PB
Laboratory
MSDH Lab
0.0239 mg/l , sample collected Jul 15, 2014 09:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 15, 2014 09:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014

Routine (10).