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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.

Nitrite results

MS0450016 , West Madison Utl Dist

2 samples have been analysed for Nitrite at West Madison Utl Dist.

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 Nitrite result

The 2 samples analysed for this analyte collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

2 Nitrite results from the 2 samples listed here: 0 detected, 2 not detected. Those samples also carried 36 results for other analytes, which are on the full results page.

Nitrite results for West Madison Utl Dist, from the 2 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
Jun 23, 2026
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
35046260001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 23, 2026, sampling point TF103 Nitrite 1041 EPA method 353.2 Apr 1, 2026 – Jun 30, 2026
Collected
Mar 13, 2025 09:14
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
NI-250313-462
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 13, 2025 09:14, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025

Routine (2).