State Hub
Michigan Water Quality
667
Utilities in database
7.3M
Residents served
2
With open violations
304
PFAS monitored
Quick Answer
Michigan public drinking water is served by 667 EPA-tracked water systems, providing service to approximately 7.3 million residents through public utilities. 2 of those systems currently have open health-based violations on record in the EPA federal database. 304 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 42% of MI residents use private wells, which fall outside federal utility compliance monitoring.
2 Michigan water systems have open health-based violations recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Michigan
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
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.
Highest Risk Utilities
Michigan systems with open health-based violations in EPA records.
Safest Large Utilities
Michigan systems with no open health violations serving 10,000+ residents.
Utilities in Michigan
126–150 of 667City of South Lyon
MI0006110 · 11,055 served
Midland Co., Water Dist. No. 1 of
MI0004375 · 11,000 served
Grosse Ile Township
MI0002870 · 10,788 served
Port Huron Township
MI0005490 · 10,654 served
Flat Rock
MI0002300 · 10,541 served
Beverly Hills
MI0000690 · 10,451 served
Grand Haven
MI0002750 · 10,412 served
Oxford Township
MI0005138 · 10,407 served
Big Rapids
MI0000710 · 10,403 served
City of Cadillac
MI0001030 · 10,355 served
City of Brighton
MI0000860 · 10,210 served
City of Alpena
MI0000160 · 10,128 served
Bridgeport Township
MI0000840 · 10,104 served
City of Marysville
MI0004160 · 9,959 served
Muskegon Heights
MI0004580 · 9,917 served
City of Howell
MI0003250 · 9,914 served
Berlin Township
MI0000635 · 9,900 served
Clay Township
MI0001450 · 9,866 served
Grosse Pointe Farms
MI0002890 · 9,757 served
Hampton Township
MI0002960 · 9,652 served
Sumpter Township
MI0006460 · 9,576 served
Beecher Metropolitan District
MI0000540 · 9,400 served
Spring Lake Township
MI0006235 · 9,393 served
Lyon Township
MI0003968 · 9,390 served
Fruitport Township
MI0002507 · 9,355 served
Key Contaminant Concerns in Michigan
These contaminants appear most frequently in Michigan utility records or pose elevated risk in this region based on EPA data.
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. Critically, a utility's water quality report can show zero detected lead at the treatment plant while your specific tap still delivers elevated lead — because the contamination happens inside the distribution system and your home's plumbing, not at the source.
EPA limit: 15 ppb (action level)
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.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
City Water Reports in Michigan
Tap water quality pages for Michigan cities — violations, PFAS records, utility profiles, and official source links.
Independent Water Testing
Find a certified lab in Michigan
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Michigan labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Michigan
City of South Lyon
Violation history, PFAS records, and official source links
Midland Co., Water Dist. No. 1 of
Violation history, PFAS records, and official source links
Grosse Ile Township
Violation history, PFAS records, and official source links
PFAS monitoring records — Michigan
304 water systems in Michigan with EPA UCMR 5 records
Active drinking water violations
2 open health-based violations on record — view official EPA SDWIS data
Lead in Michigan drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Michigan drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Michigan
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Michigan Drinking Water
Does Michigan drinking water have PFAS?
304 Michigan water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Michigan water utilities have open violations?
2 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Michigan?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from MI tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Michigan PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Michigan water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Michigan Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-17