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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
576–600 of 667Beaver Road Area Water Assoc.
MI0000517 · 829 served
Burr Oak
MI0001000 · 828 served
Coventry Woods Mhc
MI0040649 · 823 served
Cranberry Lake Mhc
MI0040382 · 820 served
Chestnut Hills
MI0001397 · 813 served
Village of Elkton
MI0002100 · 808 served
Village of Marion
MI0004100 · 800 served
Springport
MI0006250 · 800 served
Chassell Township
MI0001350 · 800 served
Gobles
MI0002680 · 800 served
Lyons
MI0003967 · 789 served
Village of Columbiaville
MI0001570 · 787 served
Martin
MI0004155 · 785 served
Village of Vermontville
MI0006790 · 780 served
Michindoh Conference Center
MI0004353 · 779 served
City of Caseville
MI0001190 · 777 served
Village of Parma
MI0005204 · 768 served
Superior Township
MI0000880 · 767 served
Climax
MI0001465 · 767 served
Timberline Estates
MI0040363 · 755 served
Andelina Farms
MI0000215 · 750 served
Interlochen Center for the Arts
MI0003365 · 750 served
South Range
MI0006120 · 745 served
Calumet
MI0001040 · 726 served
Orchard Grove
MI0040503 · 725 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