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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 301–310 of 316 samples, newest first — collected May 3, 2004 to June 24, 2004. The summary above covers all 316.

40 results from the 10 samples listed here: 18 detected, 22 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 301 to 310 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
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-738PB
Laboratory
MSDH Lab
0.0723 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0007 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-739PB
Laboratory
MSDH Lab
0.0793 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0007 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-737PB
Laboratory
MSDH Lab
0.1314 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0018 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-741PB
Laboratory
MSDH Lab
0.12 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0058 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-740PB
Laboratory
MSDH Lab
0.4544 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0016 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-649PB
Laboratory
MSDH Lab
1.2866 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0008 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-646PB
Laboratory
MSDH Lab
1.1823 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0014 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
Jun 24, 2004
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
040625-647PB
Laboratory
MSDH Lab
1.3364 mg/l , sample collected Jun 24, 2004, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
0.0012 mg/l , sample collected Jun 24, 2004, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2004 – Jun 30, 2004
Collected
May 24, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040525-112NI
Laboratory
MSDH Lab
0.8 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected May 24, 2004, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
0.8 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected May 24, 2004, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 24, 2004, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Collected
May 3, 2004
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
040504-083VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Benzene 2990 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Toluene 2991 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 3, 2004, sampling point TF080 Styrene 2996 EPA method 524.2 Apr 1, 2004 – Jun 30, 2004

Routine (10).