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
226–250 of 667City of Eaton Rapids
MI0002020 · 5,340 served
Kinross Township
MI0003630 · 5,300 served
City of Walled Lake
MI0006875 · 5,260 served
Monitor Township
MI0004440 · 5,217 served
Kimball Township
MI0003628 · 5,170 served
Musk Co Northside Water System
MI0004577 · 5,133 served
Rochester East
MI0005723 · 5,100 served
City of Utica
MI0006760 · 5,059 served
City of Caro
MI0001130 · 5,029 served
City of Davison
MI0001720 · 5,000 served
Kalamazoo Lake Sewer & Water Authority
MI0003525 · 5,000 served
Gibraltar
MI0002630 · 4,997 served
City of Frankenmuth
MI0002420 · 4,944 served
Southwest Oakland Township
MI0004878 · 4,943 served
Buchanan
MI0000960 · 4,871 served
Kochville Township
MI0003667 · 4,695 served
Marine City
MI0004090 · 4,652 served
Gladstone
MI0002640 · 4,632 served
Caledonia Township
MI0001039 · 4,573 served
Negaunee
MI0004650 · 4,568 served
Coopersville
MI0001610 · 4,519 served
Fremont
MI0002490 · 4,516 served
Dexter
MI0001810 · 4,500 served
Hancock
MI0002980 · 4,500 served
Wayland
MI0006940 · 4,435 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