Water Quality: Monroe, MI

3 water systems • 99,764 people served

Multiple Health Violations
153
Total Violations
4
Health-Based Violations
3
Water Systems
99,764
Population Served

Water Quality Summary

Monroe is served by 3 public water systems with a combined service population of 99,764 people, and has 153 EPA Safe Drinking Water Act violations on record. Critically, 4 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Monroe's violation count is 468% above the national average for Michigan. Contaminants associated with violations include E. coli, TTHM.

Contaminants Found

E. coli

Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.

Common source: Fecal contamination from humans or animals entering the water supply

EPA limit: Zero (no E. coli permitted in drinking water)

TTHM

Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.

Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water

EPA limit: 0.080 mg/L (80 ppb)

Water Systems Serving Monroe

System Name PWSID Source Population Violations
MONROE MI0004450 Surface Water 49,467 2
MONROE SOUTH COUNTY MI0004455 Surface Water 33,816 7
FRENCHTOWN TOWNSHIP MI0002500 Surface Water 16,481 144

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

Other Cities in Michigan

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Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.govSearch ECHO for MI