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
MS0650013 , White Oak Water Association
42 of the 74 analytes this system has been tested for have been detected at least once, across 273 samples on record.
The other 32 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 273 samples on record, detections range from October 27, 2003 to July 1, 2026. 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 | 61 of 61 results | Aug 14, 2007 | Aug 2, 2023 |
| Lead 1030 | Inorganic Chemical | 37 of 61 results | Aug 14, 2007 | Aug 2, 2023 |
| Barium 1010 | Inorganic Chemical | 33 of 34 results | Oct 27, 2003 | Jul 1, 2026 |
| Fluoride 1025 | Inorganic Chemical | 31 of 36 results | Mar 29, 2004 | Jul 1, 2026 |
| TTHM 2950 | Organic Chemical | 21 of 21 results | Aug 16, 2004 | May 5, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 18 of 21 results | Sep 10, 2007 | May 5, 2026 |
| Chloroform 2941 | Organic Chemical | 15 of 15 results | Sep 10, 2007 | May 5, 2026 |
| Chromium 1020 | Inorganic Chemical | 15 of 34 results | Oct 27, 2003 | Apr 8, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 14 of 15 results | Sep 10, 2007 | May 5, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 14 of 15 results | Sep 10, 2007 | May 5, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 12 of 14 results | Aug 30, 2010 | May 5, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 12 of 14 results | Aug 30, 2010 | May 5, 2026 |
| Sodium 1052 | Inorganic Chemical | 11 of 11 results | Jun 4, 2009 | Jul 1, 2026 |
| Bromoform 2942 | Organic Chemical | 6 of 15 results | May 21, 2024 | May 5, 2026 |
| Dibromoacetic Acid 2454 | Organic Chemical | 5 of 14 results | May 21, 2024 | May 5, 2026 |
| Nickel 1036 | Inorganic Chemical | 4 of 31 results | Feb 8, 2010 | Feb 12, 2024 |
| Selenium 1045 | Inorganic Chemical | 4 of 34 results | Mar 29, 2004 | Apr 10, 2006 |
| Nitrite 1041 | Inorganic Chemical | 3 of 54 results | Jul 31, 2006 | May 13, 2020 |
| Calcium 1016 | Inorganic Chemical | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Iron 1028 | Inorganic Chemical | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Manganese 1032 | Inorganic Chemical | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Potassium 1042 | Inorganic Chemical | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Residue, Total, Filterable 1057 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Carbon Dioxide 1901 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Color 1905 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| PH 1925 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Alkalinity, Total 1927 | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Iron, Field Result FEFD | Inorganic Chemical | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Calculated Sodium NACA | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| PH, Field Result PHFD | Water Quality | 2 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Cadmium 1015 | Inorganic Chemical | 2 of 34 results | Apr 10, 2006 | Apr 10, 2006 |
| Arsenic 1005 | Inorganic Chemical | 1 of 34 results | Feb 12, 2024 | Feb 12, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Oct 14, 2020 | Oct 14, 2020 |
| Radium-226 4020 | Radionuclide | 1 of 1 result | Jan 15, 2020 | Jan 15, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 14 results | Dec 5, 2016 | Dec 5, 2016 |
| Chloride 1017 | Inorganic Chemical | 1 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Magnesium 1031 | Inorganic Chemical | 1 of 2 results | Jun 4, 2009 | Jun 4, 2009 |
| Sulfate 1055 | Inorganic Chemical | 1 of 6 results | Jun 4, 2009 | Jun 4, 2009 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 34 results | Apr 20, 2005 | Apr 20, 2005 |
| Cyanide 1024 | Inorganic Chemical | 1 of 35 results | Apr 19, 2004 | Apr 19, 2004 |
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 273 samples, newest first — collected September 9, 2013 to September 3, 2014. The summary above covers all 273.
29 results from the 10 samples listed here: 16 detected, 13 not detected. Across the whole record it is 355 of 1,646. 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 |
|---|---|---|
|
||
| 0.1353 mg/l , sample collected Sep 3, 2014, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0008 mg/l , sample collected Sep 3, 2014, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.043 mg/l , sample collected Sep 3, 2014 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0017 mg/l , sample collected Sep 3, 2014 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.1019 mg/l , sample collected Sep 3, 2014 07:00, 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 3, 2014 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0344 mg/l , sample collected Sep 3, 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 3, 2014 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.2436 mg/l , sample collected Sep 1, 2014, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0006 mg/l , sample collected Sep 1, 2014, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.1436 mg/l , sample collected Sep 1, 2014 08:15, 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 1, 2014 08:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:30, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 19, 2014 13:30, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| 14.8 ug/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.76 ug/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.82 ug/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 22.4 ug/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.009 mg/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.01 mg/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.02 mg/l , sample collected Sep 9, 2013 01:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2013 |
-
- Collected
- Sep 3, 2014
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-208PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1353 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Sep 3, 2014 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-207PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.043 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Sep 3, 2014 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-206PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1019 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 3, 2014 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-205PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0344 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 1, 2014
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-210PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2436 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Sep 1, 2014 08:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140904-209PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1436 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- May 19, 2014 13:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140520-075NI
- 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
- May 19, 2014 13:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 140520-074NI
- 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 9, 2013 01:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130910-016TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 14.8 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
- 5.76 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.82 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 22.4 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Sep 9, 2013 01:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130910-016HA
- 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
- 0.009 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.01 mg/l
- 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
- 0.02 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
Routine (10).