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
MS0240259 , St Patrick High School
17 of the 51 analytes this system has been tested for have been detected at least once, across 191 samples on record.
The other 34 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 191 samples on record, detections range from May 14, 2008 to March 24, 2025. These figures cover the whole record; the list of samples further down is narrowed.
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 | 111 of 111 results | Jun 30, 2008 | Aug 1, 2023 |
| Lead 1030 | Inorganic Chemical | 75 of 111 results | Jun 30, 2008 | Aug 1, 2023 |
| Xylenes, Total 2955 | Organic Chemical | 9 of 35 results | May 14, 2008 | Jun 9, 2014 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 6 of 6 results | Jun 24, 2008 | Mar 24, 2025 |
| Barium 1010 | Inorganic Chemical | 6 of 6 results | Nov 5, 2008 | Feb 10, 2025 |
| Fluoride 1025 | Inorganic Chemical | 6 of 6 results | Nov 5, 2008 | Feb 10, 2025 |
| TTHM 2950 | Organic Chemical | 5 of 6 results | Jun 24, 2008 | Mar 24, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 4 results | Jun 24, 2008 | Jul 26, 2017 |
| Chloroform 2941 | Organic Chemical | 4 of 4 results | Jun 24, 2008 | Jul 26, 2017 |
| Chromium 1020 | Inorganic Chemical | 3 of 6 results | Nov 5, 2008 | Oct 22, 2018 |
| Ethylbenzene 2992 | Organic Chemical | 3 of 35 results | May 14, 2008 | Jun 9, 2014 |
| Nitrite 1041 | Inorganic Chemical | 2 of 18 results | Nov 30, 2020 | Apr 19, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 4 results | Jun 24, 2008 | Jul 9, 2014 |
| Cyanide 1024 | Inorganic Chemical | 1 of 6 results | May 12, 2021 | May 12, 2021 |
| Sodium 1052 | Inorganic Chemical | 1 of 1 result | Feb 17, 2021 | Feb 17, 2021 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 4 results | Jul 26, 2017 | Jul 26, 2017 |
| Nickel 1036 | Inorganic Chemical | 1 of 6 results | Nov 5, 2008 | Nov 5, 2008 |
Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The 5 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.
17 results from the 5 samples listed here: 4 detected, 13 not detected. 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 |
|---|---|---|
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 10:05, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| 4.76 ug/l , sample collected Mar 24, 2025 09:45, sampling point SMD | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Dec 31, 2026 |
|
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| 1.92 ug/l , sample collected Mar 24, 2025 09:45, sampling point SMD | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2026 |
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| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0044 mg/l , sample collected Feb 10, 2025 08:50, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.464 mg/l , sample collected Feb 10, 2025 08:50, sampling point TF101 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:50, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:55, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:55, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 10, 2025 08:55, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
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- Collected
- Sep 29, 2025 10:05
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- CN-250930-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 24, 2025 09:45
- Sampling point
- SMD Well Site Tank
- Sample type
- Routine
- Lab sample
- HA-250325-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 4.76 ug/l
-
- Collected
- Mar 24, 2025 09:45
- Sampling point
- SMD Well Site Tank
- Sample type
- Routine
- Lab sample
- TH-250325-015
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2026
-
TTHM 2950 EPA method 524.2
- Result
- 1.92 ug/l
-
- Collected
- Feb 10, 2025 08:50
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- IN-250211-049
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0044 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.464 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
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 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Feb 10, 2025 08:55
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- NI-250211-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
Routine (5).