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
MS0340010 , M & M Water Association
22 of the 58 analytes this system has been tested for have been detected at least once, across 565 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 565 samples on record, detections range from September 24, 2003 to December 15, 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 | 140 of 140 results | Aug 27, 2007 | Sep 30, 2024 |
| Lead 1030 | Inorganic Chemical | 125 of 140 results | Aug 27, 2007 | Sep 30, 2024 |
| Barium 1010 | Inorganic Chemical | 46 of 46 results | Sep 24, 2003 | Mar 5, 2025 |
| Fluoride 1025 | Inorganic Chemical | 34 of 46 results | Sep 24, 2003 | Mar 5, 2025 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 20 of 20 results | Aug 29, 2011 | Jan 16, 2013 |
| Sodium 1052 | Inorganic Chemical | 15 of 15 results | Sep 19, 2019 | Mar 5, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 15 of 150 results | Sep 11, 2013 | Aug 9, 2017 |
| Chromium 1020 | Inorganic Chemical | 11 of 46 results | Sep 24, 2003 | Mar 25, 2020 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 10 of 18 results | Sep 23, 2009 | Dec 15, 2025 |
| TTHM 2950 | Organic Chemical | 10 of 19 results | Jun 16, 2004 | Dec 15, 2025 |
| Sulfate 1055 | Inorganic Chemical | 8 of 8 results | Sep 24, 2003 | Feb 25, 2004 |
| Chloroform 2941 | Organic Chemical | 6 of 14 results | Aug 15, 2007 | Dec 15, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 14 results | Aug 15, 2007 | Dec 15, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 5 of 14 results | Sep 5, 2012 | Dec 15, 2025 |
| Ethylbenzene 2992 | Organic Chemical | 5 of 150 results | Sep 11, 2013 | Nov 3, 2015 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 14 results | Sep 5, 2012 | Dec 15, 2025 |
| Carbon Tetrachloride 2982 | Organic Chemical | 4 of 150 results | Aug 9, 2017 | Aug 9, 2017 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Jun 15, 2020 | Jun 15, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 14 results | Aug 14, 2018 | Aug 14, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 14 results | Sep 5, 2012 | Sep 5, 2012 |
| Nickel 1036 | Inorganic Chemical | 1 of 46 results | Mar 23, 2005 | Mar 23, 2005 |
| Dichloromethane 2964 | Organic Chemical | 1 of 150 results | Aug 16, 2004 | Aug 16, 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 411–420 of 565 samples, newest first — collected December 12, 2011 to January 24, 2012. The summary above covers all 565.
27 results from the 10 samples listed here: 6 detected, 20 not detected, 1 with no result recorded. Across the whole record it is 469 of 4,571. 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 0.6 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 14:40, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 14:40, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 14:40, sampling point TF103 | Radium-228 4030 EPA method 904 | Jan 1, 2012 – Mar 31, 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 Jan 24, 2012 14:40, sampling point TF103 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 13:45, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.2 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 13:45, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 24, 2012 13:45, sampling point TF102 | Radium-228 4030 EPA method 904 | Jan 1, 2012 – Mar 31, 2012 |
| 1.7 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 Jan 24, 2012 13:45, sampling point TF102 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 24, 2012 14:20, sampling point TF105 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 24, 2012 13:22, sampling point TF104 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 24, 2012 14:40, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 24, 2012 13:52, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Dec 19, 2011 14:15, sampling point TF104 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| No result recorded , sample collected Dec 19, 2011 14:15, sampling point TF104 | Radium-228 4030 EPA method 904 | Oct 1, 2011 – Dec 31, 2011 |
| 1.8 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 Dec 19, 2011 14:15, sampling point TF104 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Dec 19, 2011 13:30, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Dec 19, 2011 13:30, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Dec 19, 2011 13:30, sampling point TF103 | Radium-228 4030 EPA method 904 | Oct 1, 2011 – Dec 31, 2011 |
| 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 Dec 19, 2011 13:30, sampling point TF103 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 12:30, sampling point TF105 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 12:30, sampling point TF105 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 12:30, sampling point TF105 | Radium-228 4030 EPA method 904 | Oct 1, 2011 – Dec 31, 2011 |
| 0.8 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 Dec 12, 2011 12:30, sampling point TF105 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:20, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.2 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:20, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:20, sampling point TF102 | Radium-228 4030 EPA method 904 | Oct 1, 2011 – Dec 31, 2011 |
| 1.7 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 Dec 12, 2011 13:20, sampling point TF102 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Oct 1, 2011 – Dec 31, 2011 |
-
- Collected
- Jan 24, 2012 14:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120125-004
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 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
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Jan 24, 2012 13:45
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120125-003
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.2 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 1.7 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
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Jan 24, 2012 14:20
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- 120125-020RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 24, 2012 13:22
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- 120125-007RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 24, 2012 14:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120125-004RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 24, 2012 13:52
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120125-003RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Dec 19, 2011 14:15
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- 111220-012
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
-
Radium-228 4030 EPA method 904
- Result
- No result recorded
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 1.8 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.
-
- Collected
- Dec 19, 2011 13:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 111220-011
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
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
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Dec 12, 2011 12:30
- Sampling point
- TF105 Treatment Plant T105
- Sample type
- Routine
- Lab sample
- 111213-145
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 0.8 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
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Dec 12, 2011 13:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 111213-056
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.2 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- 1.7 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
- Oct 1, 2011 – Dec 31, 2011
Routine (10).