State Hub
Michigan Water Quality
667
Utilities in database
7.3M
Residents served
42%
On private wells
2
Key contaminants tracked
Drinking Water in Michigan
Michigan has 667 community water systems serving approximately 7.3 million residents. Primary water sources include groundwater. The most commonly reported contaminants include lead, disinfection byproducts. 42% of Michigan residents rely on private wells. EGLE holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Michigan
651–667 of 667Bessemer Township
MI0005600 · 551 served
Olive/blendon Twps
MI0004989 · 544 served
Thornapple Lake Estates
MI0040047 · 538 served
Waldron
MI0006850 · 538 served
Portsmouth Township
MI0005540 · 535 served
Village of Buckley
MI0000970 · 529 served
Woods and Fields Communities East
MI0040639 · 528 served
Village of Carsonville
MI0001180 · 527 served
Village of Ashley
MI0000250 · 526 served
Village of Northport
MI0004810 · 526 served
Ridge Valley of Milford
MI0000838 · 512 served
Camden
MI0001050 · 512 served
Village of Benzonia
MI0000610 · 511 served
Elmwood Twp - Timberlee
MI0006625 · 510 served
Village of Unionville
MI0006730 · 508 served
Wisner Area Water System
MI0007134 · 504 served
Dorr-leighton
MI0001845 · 500 served
Key Contaminant Concerns in Michigan
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
Michigan Water FAQs
Quick Links
Data source: Utility data from EPA SDWIS. 667 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-17