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 41–50 of 250 samples, newest first — collected September 5, 2017 to May 21, 2019. The summary above covers all 250.
40 results from the 10 samples listed here: 16 detected, 24 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 |
|---|---|---|
|
||
| 3.47 ug/l , sample collected May 21, 2019 02:00, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 21, 2019 02:00, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.14 ug/l , sample collected May 21, 2019 02:00, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 21, 2019 02:00, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 4.61 ug/l , sample collected May 21, 2019 02:00, sampling point MRT000 | TTHM 2950 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:30, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 18, 2019 13:30, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0033 mg/l , sample collected Oct 24, 2018 12:00, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.189 mg/l , sample collected Oct 24, 2018 12:00, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 12:00, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 3.97 ug/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.39 ug/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 5.36 ug/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | TTHM 2950 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.006 mg/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Aug 2, 2018 11:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 15, 2018 01:13, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 7, 2018 14:55, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 7, 2018 14:55, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 7, 2018 14:55, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| 0.05 mg/l , sample collected Sep 5, 2017 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0006 mg/l , sample collected Sep 5, 2017 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0102 mg/l , sample collected Sep 5, 2017 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 5, 2017 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0447 mg/l , sample collected Sep 5, 2017 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| 0.0006 mg/l , sample collected Sep 5, 2017 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
-
- Collected
- May 21, 2019 02:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190522-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 3.47 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.14 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 4.61 ug/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Mar 18, 2019 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 190319-027NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 24, 2018 12:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 181025-022IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Barium 1010 EPA method 200.8
- Result
- 0.0033 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Fluoride 1025 EPA method 300.0
- Result
- 0.189 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Aug 2, 2018 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 180803-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 3.97 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.39 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 5.36 ug/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Aug 2, 2018 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 180803-001HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.006 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.008 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- May 15, 2018 01:13
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180516-043CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Feb 7, 2018 14:55
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180208-027NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 5, 2017 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170906-036PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.05 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Sep 5, 2017 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170906-035PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0102 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 5, 2017 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170906-034PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0447 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
Routine (10).