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.
| 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 21–30 of 316 samples, newest first — collected September 28, 2020 to May 17, 2022. The summary above covers all 316.
19 results from the 10 samples listed here: 12 detected, 7 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2022 14:00, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 4.72 mg/l , sample collected Mar 2, 2022 08:15, sampling point TF080 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 2.68 mg/l , sample collected Mar 30, 2021 15:30, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| 2.68 mg/l , sample collected Mar 30, 2021 15:30, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 30, 2021 15:30, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| 0.0039 mg/l , sample collected Sep 29, 2020 13:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2020 13:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.0034 mg/l , sample collected Sep 29, 2020 13:21, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2020 13:21, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.003 mg/l , sample collected Sep 29, 2020 13:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2020 13:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.0035 mg/l , sample collected Sep 29, 2020 13:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2020 13:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.0122 mg/l , sample collected Sep 29, 2020 13:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| 0.0031 mg/l , sample collected Sep 29, 2020 13:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.0087 mg/l , sample collected Sep 29, 2020 13:10, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| 0.0007 mg/l , sample collected Sep 29, 2020 13:10, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
|
||
| 0.0043 mg/l , sample collected Sep 28, 2020 14:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 28, 2020 14:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
-
- Collected
- May 17, 2022 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-220518-024
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 2, 2022 08:15
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NA-220304-009
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 4.72 mg/l
-
- Collected
- Mar 30, 2021 15:30
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NI-210331-029
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 2.68 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 2.68 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 29, 2020 13:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-058PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0039 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 29, 2020 13:21
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-057PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0034 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 29, 2020 13:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-055PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.003 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 29, 2020 13:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-053PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0035 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 29, 2020 13:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-052PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0122 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0031 mg/l
-
- Collected
- Sep 29, 2020 13:10
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-051PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0087 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Sep 28, 2020 14:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200930-059PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0043 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).