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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

MS0490008 , South Winona Water Association

27 of the 56 analytes this system has been tested for have been detected at least once, across 243 samples on record.

The other 29 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 243 samples on record, detections range from October 8, 2003 to June 15, 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.

Every analyte ever detected for South Winona Water Association, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 59 of 59 results Jul 31, 2007 Sep 13, 2023
Lead 1030 Inorganic Chemical 40 of 59 results Jul 31, 2007 Sep 13, 2023
Xylenes, Total 2955 Organic Chemical 26 of 53 results Aug 26, 2015 Sep 20, 2021
TTHM 2950 Organic Chemical 21 of 21 results Jul 19, 2004 Feb 9, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 18 of 21 results Jun 16, 2010 Feb 9, 2026
Chloroform 2941 Organic Chemical 14 of 15 results Jun 16, 2010 Feb 9, 2026
Bromodichloromethane 2943 Organic Chemical 14 of 15 results Jun 16, 2010 Feb 9, 2026
Dibromochloromethane 2944 Organic Chemical 14 of 15 results Jun 16, 2010 Feb 9, 2026
Fluoride 1025 Inorganic Chemical 13 of 14 results Oct 8, 2003 Jun 15, 2026
Dichloroacetic Acid 2451 Organic Chemical 13 of 15 results Aug 29, 2007 Feb 9, 2026
Barium 1010 Inorganic Chemical 13 of 14 results Oct 8, 2003 May 15, 2023
Trichloroacetic Acid 2452 Organic Chemical 11 of 15 results Jul 5, 2016 Feb 9, 2026
Chromium 1020 Inorganic Chemical 11 of 14 results Mar 8, 2004 May 15, 2023
Dibromoacetic Acid 2454 Organic Chemical 10 of 15 results Jul 5, 2016 Feb 9, 2026
Bromoform 2942 Organic Chemical 10 of 15 results Jul 5, 2016 Feb 9, 2026
Sodium 1052 Inorganic Chemical 7 of 7 results Sep 19, 2019 Jun 15, 2026
Nickel 1036 Inorganic Chemical 7 of 13 results Apr 4, 2005 May 15, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 9 results Dec 12, 2011 Jul 17, 2012
Arsenic 1005 Inorganic Chemical 4 of 14 results May 8, 2017 Apr 28, 2020
Selenium 1045 Inorganic Chemical 3 of 14 results Apr 4, 2005 May 8, 2017
Ethylbenzene 2992 Organic Chemical 2 of 53 results Jun 14, 2016 Jun 14, 2016
Sulfate 1055 Inorganic Chemical 2 of 2 results Oct 8, 2003 Mar 8, 2004
Thallium, Total 1085 Inorganic Chemical 1 of 14 results Apr 28, 2020 Apr 28, 2020
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 9 results Dec 14, 2015 Dec 14, 2015
Radium-226 4020 Radionuclide 1 of 9 results Dec 14, 2015 Dec 14, 2015
Nitrite 1041 Inorganic Chemical 1 of 33 results Aug 22, 2005 Aug 22, 2005
Cadmium 1015 Inorganic Chemical 1 of 14 results Apr 4, 2005 Apr 4, 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 191–200 of 243 samples, newest first — collected August 8, 2011 to April 23, 2012. The summary above covers all 243.

23 results from the 10 samples listed here: 12 detected, 11 not detected. Across the whole record it is 322 of 1,738. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for South Winona Water Association, every result from 191 to 200 of 243 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Apr 23, 2012 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120424-150RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 23, 2012 14:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Mar 5, 2012 02:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120306-033NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2012 02:20, 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 5, 2012 02:20, 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 5, 2012 02:20, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 14, 2012 15:27
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120215-107
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Feb 14, 2012 15:27, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.463 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 15:27, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.463 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 15:27, sampling point TF080 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.28 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 15:27, sampling point TF080 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 14, 2012 15:27
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120215-107RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2012 15:27, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Dec 12, 2011 13:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
111213-155
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Dec 12, 2011 13:30, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.463 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:30, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.463 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:30, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.28 pci/l Minimum Reporting Level , sample collected Dec 12, 2011 13:30, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Aug 8, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110809-030PB
Laboratory
MSDH Lab
0.1137 mg/l , sample collected Aug 8, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.001 mg/l , sample collected Aug 8, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 8, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110809-025PB
Laboratory
MSDH Lab
0.2959 mg/l , sample collected Aug 8, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0011 mg/l , sample collected Aug 8, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 8, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110809-024PB
Laboratory
MSDH Lab
0.2704 mg/l , sample collected Aug 8, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0009 mg/l , sample collected Aug 8, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 8, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110809-023PB
Laboratory
MSDH Lab
0.1941 mg/l , sample collected Aug 8, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.002 mg/l , sample collected Aug 8, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Aug 8, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110809-022PB
Laboratory
MSDH Lab
0.3155 mg/l , sample collected Aug 8, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0051 mg/l , sample collected Aug 8, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011

Routine (10).