Crystal Lake
Is Crystal Lake tap water safe to drink?
Mostly yes — Crystal Lake scores 89/100. This report aggregates EPA drinking water data across 0 local systems in Crystal Lake. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 08:00 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Crystal Lake.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Crystal Lake?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Crystal Lake tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Crystal Lake tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Crystal Lake, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (89/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Current records show no major contaminant spikes, making Crystal Lake a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Crystal Lake
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Crystal Lake.
Frequently Asked Questions
Is Crystal Lake tap water safe to drink?
Mostly yes — Crystal Lake scores 89/100.
How many water systems serve Crystal Lake?
Crystal Lake is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Crystal Lake?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Crystal Lake.
What is the water quality score for Crystal Lake?
The water quality score for Crystal Lake is 89 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Crystal Lake?
Current contaminant data for Crystal Lake is being updated. Check back soon or search your specific address for the latest results.
Crystal Lake Water Quality Summary
Crystal Lake, IL receives a water quality score of 89/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Crystal Lake's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Crystal Lake's score of 89 is 20 points above the Illinois state average of 69, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Illinois water quality rankings report →
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Water Systems Serving Crystal Lake (0)
Water system data coming soon for Crystal Lake.
Check Your Specific Address
Water quality can vary by neighborhood in Crystal Lake.
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