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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

MS0470091 , H W Byers High School

16 of the 52 analytes this system has been tested for have been detected at least once, across 316 samples on record.

The other 36 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 316 samples on record, detections range from October 8, 2003 to July 20, 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 H W Byers High School, 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 241 of 241 results Jun 24, 2004 Sep 29, 2020
Lead 1030 Inorganic Chemical 167 of 241 results Jun 24, 2004 Sep 29, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 21 of 21 results May 24, 2004 Jul 20, 2026
Nitrate 1040 Inorganic Chemical 21 of 21 results May 24, 2004 Jul 20, 2026
Barium 1010 Inorganic Chemical 10 of 10 results Oct 8, 2003 Oct 22, 2025
TTHM 2950 Organic Chemical 4 of 16 results Jul 12, 2004 Sep 18, 2025
Nickel 1036 Inorganic Chemical 3 of 10 results May 12, 2010 Apr 9, 2019
Chromium 1020 Inorganic Chemical 3 of 10 results May 12, 2010 Mar 2, 2016
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 17 results Jun 17, 2010 Sep 18, 2025
Trichloroacetic Acid 2452 Organic Chemical 1 of 14 results Sep 18, 2025 Sep 18, 2025
Chloroform 2941 Organic Chemical 1 of 13 results Sep 18, 2025 Sep 18, 2025
Bromodichloromethane 2943 Organic Chemical 1 of 13 results Sep 18, 2025 Sep 18, 2025
Sodium 1052 Inorganic Chemical 1 of 1 result Mar 2, 2022 Mar 2, 2022
Fluoride 1025 Inorganic Chemical 1 of 10 results Apr 9, 2019 Apr 9, 2019
Cadmium 1015 Inorganic Chemical 1 of 10 results Apr 4, 2005 Apr 4, 2005
Selenium 1045 Inorganic Chemical 1 of 10 results Apr 4, 2005 Apr 4, 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 111–120 of 316 samples, newest first — collected March 24, 2011 to September 6, 2012. The summary above covers all 316.

30 results from the 10 samples listed here: 17 detected, 13 not detected. Across the whole record it is 479 of 951. 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 H W Byers High School, every result from 111 to 120 of 316 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 6, 2012 07:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120907-004PB
Laboratory
MSDH Lab
0.1863 mg/l , sample collected Sep 6, 2012 07:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
0.0013 mg/l , sample collected Sep 6, 2012 07:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
Collected
Sep 6, 2012 07:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120907-003PB
Laboratory
MSDH Lab
0.6415 mg/l , sample collected Sep 6, 2012 07:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
0.0021 mg/l , sample collected Sep 6, 2012 07:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
Collected
Sep 6, 2012 07:57
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120907-002PB
Laboratory
MSDH Lab
0.4568 mg/l , sample collected Sep 6, 2012 07:57, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
0.0051 mg/l , sample collected Sep 6, 2012 07:57, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
Collected
Sep 6, 2012 07:43
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120907-001PB
Laboratory
MSDH Lab
2.6936 mg/l , sample collected Sep 6, 2012 07:43, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
0.0091 mg/l , sample collected Sep 6, 2012 07:43, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2012
Collected
Jul 18, 2012 03:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120719-024IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.01281 mg/l , sample collected Jul 18, 2012 03:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00219 mg/l , sample collected Jul 18, 2012 03:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00262 mg/l , sample collected Jul 18, 2012 03:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 18, 2012 03:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 27, 2012 09:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120228-068NI
Laboratory
MSDH Lab
1.63 mg/l , sample collected Feb 27, 2012 09:30, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
1.63 mg/l , sample collected Feb 27, 2012 09:30, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2012 09:30, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Mar 24, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110325-050PB
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Mar 24, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Collected
Mar 24, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110325-049PB
Laboratory
MSDH Lab
0.0013 mg/l , sample collected Mar 24, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Collected
Mar 24, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110325-048PB
Laboratory
MSDH Lab
0.0016 mg/l , sample collected Mar 24, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Collected
Mar 24, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110325-047PB
Laboratory
MSDH Lab
0.0015 mg/l , sample collected Mar 24, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 24, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Jun 30, 2011

Routine (10).