Water Quality: Mark, IL
1 water system • 555 people served
Some ConcernsWater Quality Summary
Mark is served by 1 public water system with a combined service population of 555 people, and has 14 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Mark's violation count is 51% below the national average for Illinois. 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 Mark
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| MARK | IL1550250 | Groundwater | 555 | 14 |
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 Illinois
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.