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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
101–125 of 667Traverse City
MI0006640 · 14,532 served
City of Fraser
MI0002460 · 14,297 served
Harper Woods
MI0003020 · 14,236 served
Niles
MI0004740 · 14,215 served
City of Wixom
MI0007135 · 13,928 served
Coldwater
MI0001500 · 13,822 served
Ionia
MI0003370 · 12,997 served
Woodhaven
MI0007180 · 12,941 served
Escanaba
MI0002170 · 12,941 served
Union Township
MI0006725 · 12,927 served
Garfield Charter Township
MI0002565 · 12,899 served
Melvindale
MI0004220 · 12,851 served
Michigan State University
MI0004340 · 12,793 served
City of New Baltimore
MI0004670 · 12,720 served
Riverview
MI0005710 · 12,486 served
Bangor Township
MI0000390 · 11,999 served
Thomas Township
MI0006580 · 11,931 served
Sturgis
MI0006440 · 11,920 served
Clawson
MI0001440 · 11,825 served
Independence Township
MI0003342 · 11,790 served
City of Fenton
MI0002270 · 11,746 served
East Grand Rapids
MI0001960 · 11,637 served
Fort Gratiot Township
MI0002385 · 11,616 served
City of Farmington
MI0002230 · 11,597 served
Grosse Pointe Park
MI0002900 · 11,555 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
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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