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.
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 |
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 31–40 of 191 samples, newest first — collected October 7, 2020 to October 22, 2020. The summary above covers all 191.
39 results from the 10 samples listed here: 12 detected, 27 not detected. Across the whole record it is 240 of 1,134. 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 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Benzene 2990 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Toluene 2991 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2020 12:15, sampling point TF101 | Styrene 2996 EPA method 524.2 | Jan 1, 2020 – Dec 31, 2020 |
|
||
| 0.0631 mg/l , sample collected Oct 7, 2020 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.1084 mg/l , sample collected Oct 7, 2020 06:28, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0233 mg/l , sample collected Oct 7, 2020 06:28, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.1078 mg/l , sample collected Oct 7, 2020 06:27, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0084 mg/l , sample collected Oct 7, 2020 06:27, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.074 mg/l , sample collected Oct 7, 2020 06:26, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:26, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0832 mg/l , sample collected Oct 7, 2020 06:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.1133 mg/l , sample collected Oct 7, 2020 06:24, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0006 mg/l , sample collected Oct 7, 2020 06:24, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0889 mg/l , sample collected Oct 7, 2020 06:23, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:23, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0836 mg/l , sample collected Oct 7, 2020 06:22, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:22, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0696 mg/l , sample collected Oct 7, 2020 06:21, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 7, 2020 06:21, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
-
- Collected
- Oct 22, 2020 12:15
- Sampling point
- TF101
- Sample type
- Routine
- Lab sample
- 201023-005VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2020
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-050PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0631 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:28
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-049PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1084 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0233 mg/l
-
- Collected
- Oct 7, 2020 06:27
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-048PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1078 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0084 mg/l
-
- Collected
- Oct 7, 2020 06:26
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-047PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.074 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-046PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0832 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:24
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-045PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1133 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Oct 7, 2020 06:23
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-044PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0889 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:22
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-043PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0836 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 7, 2020 06:21
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 201008-042PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0696 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).