WaterQ
Illinois State Report All States
Official Status: March 2026

Is Lake Barrington tap water safe to drink?

⚠ Caution Advised
C

Use extra caution — Lake Barrington scores 59/100.

Safety Score
59
out of 100

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

Read Decision Guide →

Lake Barrington

Illinois

View Illinois state report Data updated: Mar 2026

Is Lake Barrington tap water safe to drink?

Use extra caution — Lake Barrington scores 59/100. This report aggregates EPA drinking water data across 0 local systems in Lake Barrington. We found 0 total violations (0 unresolved).

🛡️ Home Water Treatment Needs

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

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?

Wondering if Lake Barrington tap water needs filtering? We break it down.

Baby Formula Safety

Mixing baby formula with Lake Barrington tap water? Read this first.

Homebuyer's Perspective

If you're house-hunting in Lake Barrington, water quality belongs on your due-diligence checklist alongside schools and crime data. With a score of 59/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Requires Mitigation

Health & Family Safety

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

View Health Risk Glossary →

Compliance Record for Lake Barrington

0
Violations (5yr)
0
Unresolved
0
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Lake Barrington.

Frequently Asked Questions

Is Lake Barrington tap water safe to drink?

Use extra caution — Lake Barrington scores 59/100.

How many water systems serve Lake Barrington?

Lake Barrington 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 Barrington?

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

What is the water quality score for Lake Barrington?

The water quality score for Lake Barrington is 59 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 Barrington?

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

Water Quality Score
59/100
Grade
D
Water Systems
1
Population
2,300

Lake Barrington Water Quality Summary

Lake Barrington, IL receives a water quality score of 59/100 (Grade D) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Lake Barrington's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.

Lake Barrington's score of 59 is 10 points below the Illinois state average of 69, and below 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 Lake Barrington (0)

Water system data coming soon for Lake Barrington.

Related

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