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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.

Cyanide results

MS0450010 , City of Madison

4 samples have been analysed for Cyanide 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.

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

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Every Cyanide result

The 4 samples analysed for this analyte collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

4 Cyanide results from the 4 samples listed here: 0 detected, 4 not detected.

Cyanide results for City of Madison, from the 4 samples 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
Sep 10, 2025 12:40
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
CN-250910-049
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 10, 2025 12:40, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 10, 2025 13:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
CN-250910-051
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 10, 2025 13:40, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 10, 2025 13:55
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250910-050
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 10, 2025 13:55, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Oct 21, 2024 11:10
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
CN-241021-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 21, 2024 11:10, sampling point TF105 Cyanide 1024 EPA method QC10204001X Jan 1, 2022 – Dec 31, 2024

Routine (4).