Data & Sources — Menominee County

How we built the Menominee County well water report: sample counts, data sources, and confidence tiers.

Sample Summary

62177 total samples analyzed for Menominee County. Data spans 1963 to 2025.

Confidence Tiers

Data Sources

This report aggregates data from the following public databases:

Methodology

Raw records are normalized to µg/L, deduplicated by sample ID, and filtered to remove certified outliers. Analyte names are mapped to EPA canonical forms. See the full methodology page for details.

Last updated: 2026-05-08