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
MS0790006 , South Centreville W/A
18 of the 57 analytes this system has been tested for have been detected at least once, across 154 samples on record.
The other 39 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 154 samples on record, detections range from November 3, 2003 to August 26, 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 | 66 of 66 results | Aug 16, 2007 | Aug 14, 2023 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 3, 2003 | Apr 7, 2025 |
| Nickel 1036 | Inorganic Chemical | 9 of 10 results | Apr 5, 2004 | Apr 7, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 19 results | Oct 3, 2007 | Aug 26, 2025 |
| Chromium 1020 | Inorganic Chemical | 8 of 10 results | Nov 3, 2003 | Apr 7, 2025 |
| Lead 1030 | Inorganic Chemical | 7 of 66 results | Aug 16, 2007 | Aug 14, 2023 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 14 results | Aug 2, 2010 | Aug 26, 2025 |
| Arsenic 1005 | Inorganic Chemical | 6 of 10 results | Apr 5, 2004 | Apr 7, 2025 |
| Chloroform 2941 | Organic Chemical | 4 of 14 results | Aug 2, 2010 | Aug 26, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 4 of 4 results | Feb 14, 2012 | Jul 20, 2012 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 14 results | Aug 2, 2010 | Aug 26, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 3 of 19 results | Aug 2, 2010 | Nov 30, 2021 |
| Bromoform 2942 | Organic Chemical | 2 of 14 results | Aug 2, 2010 | Aug 26, 2025 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 24, 2019 | Mar 22, 2023 |
| Selenium 1045 | Inorganic Chemical | 2 of 10 results | Apr 5, 2004 | May 2, 2005 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 13 results | Oct 26, 2020 | Oct 26, 2020 |
| Nitrate 1040 | Inorganic Chemical | 1 of 21 results | Aug 9, 2006 | Aug 9, 2006 |
| Cadmium 1015 | Inorganic Chemical | 1 of 10 results | May 2, 2005 | May 2, 2005 |
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 71–80 of 154 samples, newest first — collected September 17, 2014 to September 12, 2016. The summary above covers all 154.
26 results from the 10 samples listed here: 5 detected, 21 not detected. Across the whole record it is 143 of 646. 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 0.002 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 01:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 11, 2016 01:00, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:28, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:28, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 8, 2016 13:28, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:36, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:36, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 1, 2015 13:36, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2015 – Dec 31, 2015 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 13:28, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 13:28, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 3, 2014 13:28, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| 0.008 mg/l , sample collected Sep 17, 2014 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2014 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0071 mg/l , sample collected Sep 17, 2014 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2014 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0092 mg/l , sample collected Sep 17, 2014 05:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2014 05:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0111 mg/l , sample collected Sep 17, 2014 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2014 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0074 mg/l , sample collected Sep 17, 2014 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2014 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
-
- Collected
- Sep 12, 2016 01:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 160913-016HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- 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
- Not detected below 0.006 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
- Collected
- Jul 11, 2016 01:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 160712-032CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 8, 2016 13:28
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 160609-009NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2016
-
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
- Jun 1, 2015 13:36
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 150602-011NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2015
-
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
- Nov 3, 2014 13:28
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 141104-074NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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 17, 2014 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140919-106PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2014 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140919-105PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0071 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2014 05:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140919-104PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0092 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2014 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140919-101PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0111 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2014 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140919-100PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0074 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).