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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 141–150 of 316 samples, newest first — collected October 18, 2010 to October 18, 2010. The summary above covers all 316.

20 results from the 10 samples listed here: 12 detected, 8 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 141 to 150 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
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-062PB
Laboratory
MSDH Lab
0.0163 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-061PB
Laboratory
MSDH Lab
0.0169 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-060PB
Laboratory
MSDH Lab
0.0161 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-059PB
Laboratory
MSDH Lab
0.0168 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0012 mg/l , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-058PB
Laboratory
MSDH Lab
0.1624 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0005 mg/l , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-057PB
Laboratory
MSDH Lab
0.0172 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-056PB
Laboratory
MSDH Lab
0.02 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-052PB
Laboratory
MSDH Lab
0.0175 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-051PB
Laboratory
MSDH Lab
0.0292 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 18, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101019-016PB
Laboratory
MSDH Lab
0.0187 mg/l , sample collected Oct 18, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010

Routine (10).