Drinking water quality, MI
Michigan contaminants ranked by SDWA exceedance
Which regulated contaminants exceed their maximum contaminant level (MCL) most often across Michigan's community water systems, per EPA's Six-Year Review sample-level dataset (2012-2019). Source data is public; every value is citable.
Data landing soon
Michigan contaminant rankings are being ingested
We are loading Michigan's per-contaminant SDWA exceedance counts from EPA's Six-Year Review dataset. This page will show the ranked table once the MI cohort lands. We do not publish estimated or placeholder numbers in the meantime.
For citizens
Look up your own water system by name on the muni search, then read the drinking-water quality band on its profile page for per-contaminant readings + MCL ratios.
For chemical suppliers
Contaminants near or above MCL signal treatment-chemical procurement pressure. Lane intelligence pairs this with per-chemical bid timing on the supplier tier.