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
MS0240263 , West Harrison High School
32 of the 65 analytes this system has been tested for have been detected at least once, across 203 samples on record.
The other 33 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 203 samples on record, detections range from September 8, 2009 to April 23, 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 | 104 of 104 results | Oct 29, 2009 | Aug 14, 2024 |
| Lead 1030 | Inorganic Chemical | 42 of 104 results | Oct 29, 2009 | Jul 21, 2021 |
| Xylenes, Total 2955 | Organic Chemical | 23 of 48 results | Oct 28, 2009 | May 13, 2021 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 9 results | Sep 8, 2009 | Apr 23, 2025 |
| TTHM 2950 | Organic Chemical | 9 of 9 results | Sep 8, 2009 | Apr 23, 2025 |
| Fluoride 1025 | Inorganic Chemical | 8 of 8 results | Apr 19, 2011 | Feb 15, 2024 |
| Barium 1010 | Inorganic Chemical | 7 of 7 results | Apr 19, 2011 | Feb 15, 2024 |
| Ethylbenzene 2992 | Organic Chemical | 7 of 48 results | Oct 28, 2009 | Jul 24, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 5 of 5 results | Sep 8, 2009 | Jul 24, 2017 |
| Chloroform 2941 | Organic Chemical | 5 of 5 results | Sep 8, 2009 | Jul 24, 2017 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 5 results | Sep 8, 2009 | Jul 24, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 5 results | Sep 8, 2009 | Jul 24, 2017 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 of 5 results | Sep 8, 2009 | Jul 24, 2017 |
| Chromium 1020 | Inorganic Chemical | 3 of 7 results | Apr 19, 2011 | Mar 25, 2020 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Aug 26, 2015 | Feb 24, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Jul 24, 2017 | Jul 24, 2017 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Sulfate 1055 | Inorganic Chemical | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Color 1905 | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| PH, Field Result PHFD | Water Quality | 1 of 1 result | Aug 26, 2015 | Aug 26, 2015 |
| Nickel 1036 | Inorganic Chemical | 1 of 7 results | Dec 1, 2014 | Dec 1, 2014 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 5 results | Aug 10, 2010 | Aug 10, 2010 |
| Bromoform 2942 | Organic Chemical | 1 of 5 results | Sep 8, 2009 | Sep 8, 2009 |
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 203 samples, newest first — collected March 25, 2010 to March 25, 2010. The summary above covers all 203.
20 results from the 10 samples listed here: 10 detected, 10 not detected. Across the whole record it is 255 of 1,431. 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 |
|---|---|---|
|
||
| 0.1179 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1859 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.2038 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1258 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.126 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1244 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1332 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1392 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1202 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
|
||
| 0.1293 mg/l , sample collected Mar 25, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 25, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Jun 30, 2010 |
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-023PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1179 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-022PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1859 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-021PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2038 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-020PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1258 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-019PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.126 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-018PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1244 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-017PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1332 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-016PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1392 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-015PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1202 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 25, 2010
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 100326-014PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Jun 30, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1293 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).