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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
476–500 of 667Shanty Creek - Watars Association
MI0005995 · 1,250 served
Clarkston Lake Estates
MI0040377 · 1,245 served
City of Coleman
MI0001520 · 1,243 served
Glen Oaks Community College
MI0002657 · 1,233 served
Birchwood Farms
MI0000725 · 1,227 served
Fraser Township
MI0002465 · 1,226 served
Ravenna
MI0005610 · 1,219 served
Portage Township
MI0003330 · 1,214 served
Beaver Township
MI0000518 · 1,211 served
Village of Pigeon
MI0005320 · 1,208 served
City of Pinconning
MI0005330 · 1,204 served
Lake Linden
MI0003720 · 1,203 served
Village of Stockbridge
MI0006420 · 1,202 served
Breitung Twp.-east Kingsford
MI0001980 · 1,200 served
Fonda Lake Water Authority
MI0002347 · 1,200 served
Quinnesec
MI0005590 · 1,200 served
Kings Court Mobile Home Park
MI0040171 · 1,200 served
Marcellus
MI0004070 · 1,198 served
City of Harbor Springs
MI0003010 · 1,194 served
Colon
MI0001540 · 1,190 served
Thornton Farms
MI0006594 · 1,188 served
Beaverton
MI0000520 · 1,170 served
Hidden Lakes of Green Oaks
MI0003137 · 1,148 served
Wynstone Subdivision
MI0007217 · 1,146 served
Village of Fowler
MI0002390 · 1,136 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.
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Data source: Utility data from EPA SDWIS. 667 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-17