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
MS0240154 , Harrison Central High School
22 of the 53 analytes this system has been tested for have been detected at least once, across 250 samples on record.
The other 31 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 250 samples on record, detections range from November 4, 1993 to March 31, 2025. 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 |
|---|---|---|---|---|
| Lead 1030 | Inorganic Chemical | 106 of 166 results | Nov 4, 1993 | Aug 14, 2023 |
| Copper, Free 1022 | Inorganic Chemical | 89 of 166 results | Nov 4, 1993 | Aug 14, 2023 |
| TTHM 2950 | Organic Chemical | 11 of 11 results | May 24, 2004 | Mar 31, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Sep 16, 2003 | Feb 13, 2025 |
| Fluoride 1025 | Inorganic Chemical | 11 of 11 results | Sep 16, 2003 | Feb 13, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 10 results | Jul 26, 2004 | Mar 31, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 11 results | Feb 2, 2004 | Apr 26, 2022 |
| Chloroform 2941 | Organic Chemical | 6 of 6 results | Aug 1, 2007 | May 21, 2019 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 6 results | Aug 1, 2007 | May 21, 2019 |
| Dichloroacetic Acid 2451 | Organic Chemical | 5 of 5 results | Sep 11, 2007 | Aug 2, 2018 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 5 results | Sep 11, 2007 | Sep 15, 2014 |
| Nitrite 1041 | Inorganic Chemical | 2 of 29 results | Jul 27, 2005 | Feb 4, 2013 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 6 results | Jun 10, 2010 | Jul 18, 2012 |
| Nickel 1036 | Inorganic Chemical | 2 of 11 results | Nov 12, 2009 | May 10, 2010 |
| Cadmium 1015 | Inorganic Chemical | 2 of 11 results | Mar 9, 2005 | Feb 6, 2006 |
| Selenium 1045 | Inorganic Chemical | 2 of 11 results | Mar 9, 2005 | Feb 6, 2006 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Sep 16, 2003 | Feb 2, 2004 |
| Sodium 1052 | Inorganic Chemical | 1 of 1 result | Feb 24, 2021 | Feb 24, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Aug 2, 2018 | Aug 2, 2018 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 5 results | Jul 18, 2012 | Jul 18, 2012 |
| Arsenic 1005 | Inorganic Chemical | 1 of 11 results | May 10, 2010 | May 10, 2010 |
| Cyanide 1024 | Inorganic Chemical | 1 of 11 results | Sep 15, 2003 | Sep 15, 2003 |
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 161–170 of 250 samples, newest first — collected June 25, 1996 to June 12, 2000. The summary above covers all 250.
20 results from the 10 samples listed here: 18 detected, 2 not detected. Across the whole record it is 280 of 816. 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 |
|---|---|---|
|
||
| 0.009 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.049 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.004 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.008 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.008 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.106 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.005 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.01 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.013 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Jun 12, 2000, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.005 mg/l , sample collected Jun 25, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.003 mg/l , sample collected Jun 25, 1996, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.05 mg/l , sample collected Jun 25, 1996, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.005 mg/l , sample collected Jun 25, 1996, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-007L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.009 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-006L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.049 mg/l
-
Lead 1030
- Result
- 0.004 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-005L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.008 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-004L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.008 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-003L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.106 mg/l
-
Lead 1030
- Result
- 0.005 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-002L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.01 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Jun 12, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000613-001L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.013 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Jun 25, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960626-085L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.005 mg/l
-
- Collected
- Jun 25, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960626-076L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.003 mg/l
-
- Collected
- Jun 25, 1996
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 960626-075L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.05 mg/l
-
Lead 1030
- Result
- 0.005 mg/l
Routine (10).