WaterQ
Illinois State Report All States
Official Status: March 2026

Is Lake Forest tap water safe to drink?

⚠ Caution Advised
B

Generally acceptable, but review local hotspots — score 72/100.

Safety Score
72
out of 100

Still not sure if you need a filter in Lake Forest?

Read Decision Guide →

Lake Forest

Illinois

View Illinois state report Verified: Apr 2026

Is Lake Forest tap water safe to drink?

Generally acceptable, but review local hotspots — score 72/100. This report aggregates EPA drinking water data across 0 local systems in Lake Forest. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 07:30 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Lake Forest.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Lake Forest?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Should you buy a water purifier in Lake Forest? See our analysis.

Baby Formula Safety

Is Lake Forest tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Lake Forest, water quality is a key factor in long-term property maintenance. With a score of 72/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Lake Forest a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Lake Forest

EPA Compliance & Violations 85/100
Contaminant Safety Margin 72%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Lake Forest tap water safe to drink?

Generally acceptable, but review local hotspots — score 72/100.

How many water systems serve Lake Forest?

Lake Forest is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Lake Forest?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Lake Forest.

What is the water quality score for Lake Forest?

The water quality score for Lake Forest is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Lake Forest?

Current contaminant data for Lake Forest is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
72/100
Grade
C
Water Systems
1
Population
19,642

Lake Forest Water Quality Summary

Lake Forest, IL receives a water quality score of 72/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Lake Forest's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Water Systems Serving Lake Forest (0)

Water system data coming soon for Lake Forest.

Related

Compare Lake Forest water quality: View all states · Contaminant library · How we score water quality