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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
451–475 of 667Pinconning Township
MI0005335 · 1,479 served
Merritt Township
MI0004280 · 1,474 served
Coloma Charter Township
MI0001535 · 1,425 served
Stanton
MI0006360 · 1,417 served
White Cloud
MI0007060 · 1,408 served
Schoolcraft
MI0005970 · 1,405 served
Woodland Ridge
MI0040669 · 1,400 served
Osceola Township
MI0001840 · 1,391 served
Frankenmuth Township
MI0002425 · 1,389 served
Homestead/crystal River Water Co
MI0007103 · 1,365 served
Cass County Water System
MI0005234 · 1,350 served
Midland Charter Township
MI0004377 · 1,348 served
Saranac
MI0005930 · 1,343 served
Village of Breckenridge
MI0000820 · 1,339 served
Ann Arbor Township
MI0000221 · 1,338 served
Brown City
MI0000930 · 1,316 served
Brooklyn
MI0000920 · 1,313 served
Litchfield
MI0003920 · 1,310 served
City of Manton
MI0004050 · 1,287 served
City of Frankfort
MI0002430 · 1,286 served
Village of Bellevue
MI0000590 · 1,282 served
Sashabaw Meadows Mhp
MI0040575 · 1,278 served
Edwardsburg
MI0002077 · 1,260 served
Oak Hill Estates Mhc
MI0040391 · 1,260 served
Edmore
MI0002070 · 1,256 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