Water Quality: Crystal Lake, IL
1 water system • 40,661 people served
No Health ViolationsWater Quality Summary
Crystal Lake is served by 1 public water system with a combined service population of 40,661 people, and has 23 EPA Safe Drinking Water Act violations on record. None of those violations are health-based — the records reflect missed monitoring or reporting deadlines rather than a contaminant exceeding safe levels. Crystal Lake's violation count is 20% below the national average for Illinois.
Water Systems Serving Crystal Lake
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CRYSTAL LAKE | IL1110150 | Groundwater | 40,661 | 23 |
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.