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
MS0610013 , Leesburg Water Association
40 of the 73 analytes this system has been tested for have been detected at least once, across 362 samples on record.
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 362 samples on record, detections range from October 20, 2003 to July 23, 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 | 140 of 140 results | Sep 5, 2007 | Jul 18, 2025 |
| Lead 1030 | Inorganic Chemical | 70 of 140 results | Sep 5, 2007 | Jul 17, 2025 |
| Barium 1010 | Inorganic Chemical | 30 of 30 results | Oct 20, 2003 | Mar 24, 2025 |
| Nickel 1036 | Inorganic Chemical | 16 of 30 results | Oct 20, 2003 | Oct 20, 2022 |
| TTHM 2950 | Organic Chemical | 13 of 19 results | Aug 9, 2004 | Oct 15, 2025 |
| Fluoride 1025 | Inorganic Chemical | 13 of 33 results | May 13, 2013 | Mar 24, 2025 |
| Chromium 1020 | Inorganic Chemical | 13 of 30 results | Oct 20, 2003 | Apr 2, 2019 |
| Chloroform 2941 | Organic Chemical | 11 of 14 results | Sep 27, 2007 | Oct 15, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 10 of 14 results | Sep 27, 2007 | Oct 15, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 15 results | Mar 12, 2012 | Oct 10, 2012 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Jul 30, 2009 | Jul 23, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 19 results | Sep 6, 2007 | Oct 15, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 9 of 67 results | Sep 15, 2010 | Mar 19, 2018 |
| Nitrate 1040 | Inorganic Chemical | 9 of 67 results | Sep 15, 2010 | Mar 19, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 7 of 14 results | Jun 29, 2010 | Oct 15, 2025 |
| Sulfate 1055 | Inorganic Chemical | 6 of 6 results | Oct 20, 2003 | Jul 30, 2009 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 13 results | Sep 4, 2013 | Oct 15, 2025 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Color 1905 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Iron, Field Result FEFD | Inorganic Chemical | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 13 results | Sep 10, 2024 | Oct 15, 2025 |
| Chloride 1017 | Inorganic Chemical | 2 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Manganese 1032 | Inorganic Chemical | 2 of 3 results | Jul 30, 2009 | Jul 30, 2009 |
| Dichloromethane 2964 | Organic Chemical | 2 of 24 results | Aug 24, 2004 | Aug 24, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 13 results | Oct 13, 2020 | Oct 13, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 13 results | Dec 8, 2016 | Dec 8, 2016 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 2 results | Sep 24, 2012 | Sep 24, 2012 |
| Cyanide 1024 | Inorganic Chemical | 1 of 30 results | Mar 1, 2010 | Mar 1, 2010 |
| Mercury 1035 | Inorganic Chemical | 1 of 30 results | Mar 22, 2004 | Mar 22, 2004 |
| Selenium 1045 | Inorganic Chemical | 1 of 30 results | Mar 22, 2004 | Mar 22, 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 181–190 of 362 samples, newest first — collected July 22, 2013 to December 11, 2013. The summary above covers all 362.
26 results from the 10 samples listed here: 16 detected, 10 not detected. Across the whole record it is 432 of 1,655. 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 0.015 mg/l Minimum Reporting Level , sample collected Dec 11, 2013 07:55, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 1.05 ug/l , sample collected Sep 4, 2013 06:35, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 4, 2013 06:35, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.3 ug/l , sample collected Sep 4, 2013 06:35, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.29 ug/l , sample collected Sep 4, 2013 06:35, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 3.6 ug/l , sample collected Sep 4, 2013 06:35, 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 4, 2013 06:35, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Sep 4, 2013 06:35, 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 4, 2013 06:35, 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 4, 2013 06:35, 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 4, 2013 06:35, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Sep 4, 2013 06:35, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.036 mg/l , sample collected Jul 23, 2013 06:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 23, 2013 06:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0418 mg/l , sample collected Jul 22, 2013 04:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 22, 2013 04:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0174 mg/l , sample collected Jul 22, 2013 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.001 mg/l , sample collected Jul 22, 2013 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.2932 mg/l , sample collected Jul 22, 2013 05:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 22, 2013 05:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0813 mg/l , sample collected Jul 22, 2013 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 22, 2013 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.271 mg/l , sample collected Jul 22, 2013 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0005 mg/l , sample collected Jul 22, 2013 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0514 mg/l , sample collected Jul 22, 2013 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0006 mg/l , sample collected Jul 22, 2013 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
-
- Collected
- Dec 11, 2013 07:55
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 131211-001CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 4, 2013 06:35
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130905-003TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.05 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
- 1.3 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.29 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.6 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Sep 4, 2013 06:35
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130905-003HA
- 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
- 0.001 mg/l
- 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
- 0.001 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Jul 23, 2013 06:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-082PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.036 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 22, 2013 04:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-101PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0418 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 22, 2013 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-100PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0174 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.001 mg/l
-
- Collected
- Jul 22, 2013 05:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-099PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2932 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 22, 2013 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-098PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0813 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 22, 2013 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-096PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.271 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Jul 22, 2013 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130724-094PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0514 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
Routine (10).