Water Quality: Mercer, MO
2 water systems • 3,518 people served
Multiple Health ViolationsWater Quality Summary
Mercer is served by 2 public water systems with a combined service population of 3,518 people, and has 49 EPA Safe Drinking Water Act violations on record. Critically, 22 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Mercer's violation count is 29% above the national average for Missouri. Contaminants associated with violations include TTHM.
Contaminants Found
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 Mercer
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| MERCER COUNTY PWSD 1 | MO2024382 | Surface Water | 3,200 | 16 |
| MERCER PWS | MO2010515 | Groundwater | 318 | 33 |
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 Missouri
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.