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
MS0050017 , North Benton W/A
21 of the 57 analytes this system has been tested for have been detected at least once, across 213 samples on record.
The other 36 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 213 samples on record, detections range from May 3, 2004 to June 9, 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 | 75 of 75 results | Dec 28, 2004 | Aug 13, 2024 |
| Barium 1010 | Inorganic Chemical | 52 of 52 results | Nov 15, 2004 | Jun 9, 2026 |
| Arsenic 1005 | Inorganic Chemical | 41 of 53 results | Nov 15, 2004 | Jun 9, 2026 |
| Lead 1030 | Inorganic Chemical | 38 of 75 results | Dec 28, 2004 | Jun 29, 2021 |
| Fluoride 1025 | Inorganic Chemical | 31 of 32 results | Nov 15, 2004 | Jun 9, 2026 |
| Chromium 1020 | Inorganic Chemical | 31 of 52 results | Feb 14, 2005 | Dec 8, 2025 |
| Nickel 1036 | Inorganic Chemical | 30 of 49 results | Nov 15, 2004 | Dec 8, 2025 |
| TTHM 2950 | Organic Chemical | 5 of 8 results | May 3, 2004 | Feb 3, 2025 |
| Selenium 1045 | Inorganic Chemical | 4 of 52 results | Feb 14, 2005 | Aug 25, 2008 |
| Ethylbenzene 2992 | Organic Chemical | 4 of 30 results | Jul 8, 2004 | Sep 1, 2005 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 3 of 8 results | Jun 25, 2007 | Feb 3, 2025 |
| Thallium, Total 1085 | Inorganic Chemical | 3 of 52 results | Apr 25, 2007 | Aug 25, 2008 |
| Xylenes, Total 2955 | Organic Chemical | 3 of 30 results | Sep 1, 2005 | May 24, 2007 |
| Mercury 1035 | Inorganic Chemical | 2 of 47 results | Feb 14, 2005 | Jun 9, 2026 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Jan 21, 2021 | Oct 14, 2024 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 23 results | Jan 17, 2023 | Jan 17, 2023 |
| Nitrite 1041 | Inorganic Chemical | 1 of 23 results | Jan 17, 2023 | Jan 17, 2023 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 2 results | Nov 29, 2011 | Nov 29, 2011 |
| Radium-228 4030 | Radionuclide | 1 of 2 results | Nov 29, 2011 | Nov 29, 2011 |
| Antimony, Total 1074 | Inorganic Chemical | 1 of 52 results | Apr 25, 2007 | Apr 25, 2007 |
| Cadmium 1015 | Inorganic Chemical | 1 of 52 results | Feb 14, 2005 | Feb 14, 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 91–100 of 213 samples, newest first — collected September 27, 2011 to September 10, 2012. The summary above covers all 213.
27 results from the 10 samples listed here: 10 detected, 17 not detected. Across the whole record it is 330 of 1,481. 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 0.43 pci/l Minimum Reporting Level , sample collected Sep 10, 2012 13:30, sampling point TF080 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Not recorded |
|
||
| 0.0078 mg/l , sample collected Jul 12, 2012 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
| 0.0006 mg/l , sample collected Jul 12, 2012 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| 0.0255 mg/l , sample collected Jul 12, 2012 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
| 0.0006 mg/l , sample collected Jul 12, 2012 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| 0.0094 mg/l , sample collected Jul 12, 2012 05:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
| 0.0007 mg/l , sample collected Jul 12, 2012 05:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| 0.0041 mg/l , sample collected Jul 12, 2012 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 12, 2012 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| 0.0153 mg/l , sample collected Jul 12, 2012 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 12, 2012 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| Not detected below 0.37 pci/l Minimum Reporting Level , sample collected Jun 28, 2012 12:05, sampling point TF080 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 01:30, sampling point TF080 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 01:30, sampling point TF080 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 17, 2012 01:30, sampling point TF080 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 2.88 pci/l Minimum Reporting Level , sample collected Nov 29, 2011 13:15, sampling point TF080 | Gross Alpha, Excl. Radon & U 4000 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Nov 29, 2011 13:15, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Oct 1, 2011 – Dec 31, 2011 |
| 0.803 pci/l The agency recorded which kind of limit this result was below, but stored nothing 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 Nov 29, 2011 13:15, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.664 pci/l Minimum Reporting Level , sample collected Nov 29, 2011 13:15, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| 0.803 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 Nov 29, 2011 13:15, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 2.88 pci/l Minimum Reporting Level , sample collected Nov 29, 2011 13:15, sampling point TF080 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 2.2 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Gross Alpha, Excl. Radon & U 4000 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.715 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.715 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.594 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 2.2 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 13:20, sampling point TF080 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Jul 1, 2011 – Sep 30, 2011 |
-
- Collected
- Sep 10, 2012 13:30
- Sampling point
- TF080
- Sample type
- Routine
- Lab sample
- 201212280321
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Not recorded
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.43 pci/l Minimum Reporting Level
-
- Collected
- Jul 12, 2012 07:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120713-011PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0078 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 12, 2012 06:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120713-010PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0255 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 12, 2012 05:45
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120713-009PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0094 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Jul 12, 2012 06:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120713-008PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0041 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 12, 2012 07:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120713-007PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0153 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 28, 2012 12:05
- Sampling point
- TF080
- Sample type
- Routine
- Lab sample
- 201208200024
- Laboratory
- Radiation Safety Engineering
- Monitoring period
- Not recorded
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.37 pci/l Minimum Reporting Level
-
- Collected
- Jan 17, 2012 01:30
- Sampling point
- TF080
- Sample type
- Routine
- Lab sample
- 120118-052NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Nov 29, 2011 13:15
- Sampling point
- TF080
- Sample type
- Routine
- Lab sample
- 291204004
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.88 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- 0.803 pci/l The agency recorded which kind of limit this result was below, but stored nothing 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
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.664 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- 0.803 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
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.88 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Sep 27, 2011 13:20
- Sampling point
- TF080
- Sample type
- Routine
- Lab sample
- 286904015
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.2 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.715 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.715 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.594 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.2 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
Routine (10).