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
601–625 of 667Millpointe of Hartland
MI0004403 · 724 served
Tekonsha
MI0006562 · 722 served
River Ridge - Saline
MI0040663 · 720 served
Windsor Estates
MI0040124 · 718 served
Fairfield Township
MI0002212 · 717 served
Key Heights Mobile Village
MI0040276 · 715 served
Yankee Springs Meadows
MI0040585 · 710 served
Hickory Hills
MI0040084 · 708 served
Republic Township
MI0005660 · 700 served
Cass Lakeside Subdivision
MI0001230 · 700 served
Hunters Glen
MI0040660 · 700 served
Crystal Mountain Resort & Spa
MI0001716 · 700 served
Columbia Lakes Estates
MI0001565 · 700 served
Village of Hillman
MI0003160 · 697 served
Village of Merrill
MI0004276 · 695 served
Village of Sunfield
MI0006470 · 680 served
Sanilac Township
MI0005925 · 674 served
Hidden Lake Estates
MI0040386 · 673 served
Oakland Hunt Subdivision
MI0005573 · 671 served
Arbor Village
MI0040223 · 670 served
Yankee Springs Township
MI0007231 · 660 served
Baldwin Township
MI0000355 · 650 served
Meadowlane Mobile Home Park
MI0040172 · 650 served
Woodlands Mhc
MI0040404 · 650 served
Sheridan
MI0006040 · 649 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