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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.

Fluoride results

MS0490008 , South Winona Water Association

14 samples have been analysed for Fluoride at South Winona Water Association.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every Fluoride result

The table below lists 1–10 of 14 samples, newest first — collected May 1, 2013 to June 15, 2026.

10 Fluoride results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 100 results for other analytes, which are on the full results page.

Fluoride results for South Winona Water Association, from 1 to 10 of 14 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Jun 15, 2026
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
35044235001
Laboratory
Pace Analytical Services, LLC
0.14 mg/l , sample collected Jun 15, 2026, sampling point TF103 Fluoride 1025 EPA method 300.0 Apr 1, 2026 – Jun 30, 2026
Collected
May 15, 2023 12:15
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
IN-230516-009
Laboratory
MSDH Lab
0.168 mg/l , sample collected May 15, 2023 12:15, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2021 – Dec 31, 2023
Collected
May 15, 2023 12:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
IN-230516-008
Laboratory
MSDH Lab
0.171 mg/l , sample collected May 15, 2023 12:30, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2021 – Dec 31, 2023
Collected
Apr 28, 2020 13:45
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
200429-048IN
Laboratory
MSDH Lab
0.14 mg/l , sample collected Apr 28, 2020 13:45, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2018 – Dec 31, 2020
Collected
Apr 28, 2020 13:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
200429-047IN
Laboratory
MSDH Lab
0.139 mg/l , sample collected Apr 28, 2020 13:30, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2018 – Dec 31, 2020
Collected
Mar 23, 2020 11:15
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
200324-022IN
Laboratory
MSDH Lab
0.136 mg/l , sample collected Mar 23, 2020 11:15, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2018 – Dec 31, 2020
Collected
Mar 23, 2020 11:30
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
200324-021IN
Laboratory
MSDH Lab
0.14 mg/l , sample collected Mar 23, 2020 11:30, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2018 – Dec 31, 2020
Collected
May 8, 2017 01:15
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
170509-033IN
Laboratory
MSDH Lab
0.148 mg/l , sample collected May 8, 2017 01:15, sampling point TF103 Fluoride 1025 EPA method 300.0 Jan 1, 2015 – Dec 31, 2017
Collected
May 8, 2017 01:35
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
170509-032IN
Laboratory
MSDH Lab
0.141 mg/l , sample collected May 8, 2017 01:35, sampling point TF104 Fluoride 1025 EPA method 300.0 Jan 1, 2015 – Dec 31, 2017
Collected
May 1, 2013 12:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
130502-036IN
Laboratory
MSDH Lab
0.158 mg/l , sample collected May 1, 2013 12:30, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2011 – Dec 31, 2013

Routine (10).