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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

MS0450010 , City of Madison

42 samples have been analysed for Fluoride at City of Madison.

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 42 samples, newest first — collected September 28, 2022 to July 15, 2026.

10 Fluoride results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 99 results for other analytes, which are on the full results page.

Fluoride results for City of Madison, from 1 to 10 of 42 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
Jul 15, 2026
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
35051214004
Laboratory
Pace Analytical Services, LLC
0.14 mg/l , sample collected Jul 15, 2026, sampling point TF105 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Collected
Jul 15, 2026
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
35051214003
Laboratory
Pace Analytical Services, LLC
0.16 mg/l , sample collected Jul 15, 2026, sampling point TF104 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Collected
Jul 15, 2026
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
35051214002
Laboratory
Pace Analytical Services, LLC
0.14 mg/l , sample collected Jul 15, 2026, sampling point TF103 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Collected
Jul 15, 2026
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
35051214001
Laboratory
Pace Analytical Services, LLC
0.11 mg/l , sample collected Jul 15, 2026, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Collected
Mar 11, 2025 10:41
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-250311-103
Laboratory
MSDH Lab
0.174 mg/l , sample collected Mar 11, 2025 10:41, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Collected
Mar 11, 2025 10:08
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
IN-250311-102
Laboratory
MSDH Lab
0.182 mg/l , sample collected Mar 11, 2025 10:08, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Collected
Mar 11, 2025 10:28
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250311-101
Laboratory
MSDH Lab
0.12 mg/l , sample collected Mar 11, 2025 10:28, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Collected
Jan 9, 2024 10:34
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
IN-240110-016
Laboratory
MSDH Lab
0.161 mg/l , sample collected Jan 9, 2024 10:34, sampling point TF105 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2022 – Dec 31, 2024
Collected
Sep 28, 2022 07:45
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-220928-066
Laboratory
MSDH Lab
0.17 mg/l , sample collected Sep 28, 2022 07:45, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Collected
Sep 28, 2022 07:55
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-220928-068
Laboratory
MSDH Lab
0.176 mg/l , sample collected Sep 28, 2022 07:55, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022

Routine (10).