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 211–220 of 362 samples, newest first — collected September 24, 2012 to December 13, 2012. The summary above covers all 362.
31 results from the 10 samples listed here: 5 detected, 26 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 0.0005 mg/l Minimum Reporting Level , sample collected Dec 13, 2012 11:42, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.7 pci/l , sample collected Oct 10, 2012 12:10, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:10, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.171 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:10, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:10, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.8 pci/l , sample collected Oct 10, 2012 11:40, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:40, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.192 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:40, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:40, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:55, sampling point TF105 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:55, sampling point TF105 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.361 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:55, sampling point TF105 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 11:55, sampling point TF105 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.7 pci/l , sample collected Oct 9, 2012 11:30, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:30, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.171 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:30, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:30, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.8 pci/l , sample collected Oct 9, 2012 11:15, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:15, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.192 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:15, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:15, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:00, sampling point TF105 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:00, sampling point TF105 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.361 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:00, sampling point TF105 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 11:00, sampling point TF105 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 9, 2012 11:30, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.57 pci/l Minimum Reporting Level , sample collected Sep 24, 2012 07:00, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.473 pci/l Minimum Reporting Level , sample collected Sep 24, 2012 07:00, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.57 pci/l Minimum Reporting Level , sample collected Sep 24, 2012 07:00, sampling point TF103 | Radium-228 4030 EPA method 904 | Jul 1, 2012 – Sep 30, 2012 |
| 1.3 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 24, 2012 07:00, sampling point TF103 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2012 07:00, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
-
- Collected
- Dec 13, 2012 11:42
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 121214-001RU
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Oct 10, 2012 12:10
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 201212290181
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.171 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 10, 2012 11:40
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 201212290180
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.8 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.41 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.192 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.41 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 10, 2012 11:55
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- 201212290150
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.38 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.361 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.38 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 9, 2012 11:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 121010-090
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.171 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 9, 2012 11:15
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 121010-035
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.8 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.41 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.192 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.41 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 9, 2012 11:00
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- 121010-036
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.38 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.361 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.38 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 9, 2012 11:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 121010-090RU
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 24, 2012 07:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 201212280211
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.57 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.473 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.57 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 1.3 pci/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Sep 24, 2012 07:00
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120925-001RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).