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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
251–275 of 667Lake Charter Township
MI0003741 · 4,177 served
Roosevelt Park
MI0005800 · 4,172 served
Livingston Community Water Authority
MI0003929 · 4,152 served
City of Linden
MI0003890 · 4,150 served
Lowell
MI0003950 · 4,150 served
Sparta
MI0006200 · 4,140 served
Otsego
MI0005060 · 4,120 served
City of Algonac
MI0000110 · 4,110 served
Lathrup Village
MI0003800 · 4,075 served
Plainwell
MI0005380 · 3,998 served
Belleville
MI0000580 · 3,964 served
City of Williamston
MI0007120 · 3,917 served
Pennfield Township
MI0004760 · 3,916 served
Augusta Township
MI0000321 · 3,907 served
Mancelona Area Water and Sewer Authority
MI0004010 · 3,900 served
Portland
MI0005530 · 3,883 served
Worth Township
MI0003856 · 3,854 served
Highland Township
MI0003312 · 3,837 served
Springfield
MI0006240 · 3,833 served
North Muskegon
MI0004780 · 3,786 served
Village of Romeo
MI0005780 · 3,750 served
City of Boyne City
MI0000800 · 3,735 served
East Bay Charter Township
MI0001935 · 3,720 served
City of Gaylord
MI0002600 · 3,629 served
Frankenlust Township
MI0002410 · 3,626 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