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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 61–70 of 243 samples, newest first — collected July 27, 2020 to December 18, 2020. The summary above covers all 243.

64 results from the 10 samples listed here: 17 detected, 47 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 61 to 70 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
Dec 18, 2020 13:45
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
201219-002VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:45, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Collected
Dec 18, 2020 13:37
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
201219-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 18, 2020 13:37, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2020 – Dec 31, 2020
Collected
Dec 7, 2020 13:15
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
CN-201208-016
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 7, 2020 13:15, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2018 – Dec 31, 2020
Collected
Sep 21, 2020 13:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200921-001TH
Laboratory
MSDH Lab
16.7 ug/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
4.47 ug/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
18.4 ug/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
16.1 ug/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
55.7 ug/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Sep 21, 2020 13:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200921-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 21, 2020 13:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.004 mg/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 21, 2020 13:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.016 mg/l , sample collected Sep 21, 2020 13:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2020 – Dec 31, 2020
Collected
Jul 27, 2020 08:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200728-020PB
Laboratory
MSDH Lab
0.0484 mg/l , sample collected Jul 27, 2020 08:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0032 mg/l , sample collected Jul 27, 2020 08:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 27, 2020 01:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200728-019PB
Laboratory
MSDH Lab
0.035 mg/l , sample collected Jul 27, 2020 01:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 27, 2020 01:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 27, 2020 09:16
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200728-018PB
Laboratory
MSDH Lab
0.1293 mg/l , sample collected Jul 27, 2020 09:16, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0008 mg/l , sample collected Jul 27, 2020 09:16, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 27, 2020
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200728-017PB
Laboratory
MSDH Lab
0.112 mg/l , sample collected Jul 27, 2020, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0012 mg/l , sample collected Jul 27, 2020, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 27, 2020 07:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200728-016PB
Laboratory
MSDH Lab
0.063 mg/l , sample collected Jul 27, 2020 07:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 27, 2020 07:40, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020

Routine (10).