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
MS0490010 , City of Winona
22 of the 59 analytes this system has been tested for have been detected at least once, across 280 samples on record.
The other 37 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 280 samples on record, detections range from October 8, 2003 to December 3, 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 | 182 of 184 results | Jun 17, 2004 | Aug 7, 2024 |
| Lead 1030 | Inorganic Chemical | 81 of 184 results | Jun 17, 2004 | Aug 7, 2024 |
| TTHM 2950 | Organic Chemical | 11 of 20 results | Jul 21, 2004 | Aug 14, 2025 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Oct 8, 2003 | Apr 7, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 20 results | Jun 16, 2010 | Aug 14, 2025 |
| Fluoride 1025 | Inorganic Chemical | 7 of 10 results | Oct 8, 2003 | Apr 7, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 14 results | Aug 12, 2013 | Aug 14, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 14 results | Aug 12, 2013 | Aug 14, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 14 results | Aug 12, 2013 | Aug 14, 2025 |
| Nickel 1036 | Inorganic Chemical | 5 of 10 results | Mar 10, 2004 | Apr 7, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 29, 2019 | Dec 3, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 15 results | Aug 12, 2013 | Aug 14, 2025 |
| Chromium 1020 | Inorganic Chemical | 3 of 10 results | Mar 7, 2016 | Apr 7, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 15 results | Aug 12, 2013 | Aug 14, 2025 |
| Gross Beta Particle Activity 4100 | Radionuclide | 2 of 2 results | Sep 25, 2009 | Mar 15, 2010 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Oct 8, 2003 | Mar 10, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 15 results | Sep 22, 2020 | Sep 22, 2020 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 7 results | Mar 15, 2010 | Mar 15, 2010 |
| Radium-226 4020 | Radionuclide | 1 of 7 results | Mar 15, 2010 | Mar 15, 2010 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 1 of 2 results | Sep 25, 2009 | Sep 25, 2009 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 2 results | Sep 25, 2009 | Sep 25, 2009 |
| Mercury 1035 | Inorganic Chemical | 1 of 10 results | Apr 6, 2005 | Apr 6, 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 161–170 of 280 samples, newest first — collected March 7, 2012 to October 12, 2012. The summary above covers all 280.
27 results from the 10 samples listed here: 0 detected, 27 not detected. Across the whole record it is 343 of 915. 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 0.34 pci/l Minimum Reporting Level , sample collected Oct 12, 2012 14:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Oct 12, 2012 14:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.213 pci/l Minimum Reporting Level , sample collected Oct 12, 2012 14:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Oct 12, 2012 14:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 15:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 15:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.213 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 15:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 15:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 26, 2012 03:00, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Aug 8, 2012 16:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Aug 8, 2012 16:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.213 pci/l Minimum Reporting Level , sample collected Aug 8, 2012 16:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Aug 8, 2012 16:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 8, 2012 16:00, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected May 24, 2012 14:41, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected May 24, 2012 14:41, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.213 pci/l Minimum Reporting Level , sample collected May 24, 2012 14:41, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected May 24, 2012 14:41, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 24, 2012 15:41, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Mar 13, 2012 14:00, sampling point TF080 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Mar 13, 2012 14:00, sampling point TF080 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.213 pci/l Minimum Reporting Level , sample collected Mar 13, 2012 14:00, sampling point TF080 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Mar 13, 2012 14:00, sampling point TF080 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 13, 2012 14:00, sampling point TF080 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2012 01:34, 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 Mar 7, 2012 01:34, 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 Mar 7, 2012 01:34, sampling point TF080 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
-
- Collected
- Oct 12, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 201301120057
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.213 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 11, 2012 15:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 121012-063
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.213 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Sep 26, 2012 03:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120927-029CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Aug 8, 2012 16:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120809-103
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.213 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Aug 8, 2012 16:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120809-103RU
- 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
-
- Collected
- May 24, 2012 14:41
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120525-038
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.213 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- May 24, 2012 15:41
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120525-038RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 13, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120315-078
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.213 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Mar 13, 2012 14:00
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120315-078RU
- 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
- Mar 7, 2012 01:34
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 120308-088NI
- 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
Routine (10).