WaterQ
Illinois State Report All States
Official Status: March 2026

Is South Elgin tap water safe to drink?

⚠ Caution Advised
D

Use extra caution — South Elgin scores 42/100.

Safety Score
42
out of 100

Still not sure if you need a filter in South Elgin?

Read Decision Guide →

South Elgin

Illinois

View Illinois state report Data updated: Mar 2026

Is South Elgin tap water safe to drink?

Use extra caution — South Elgin scores 42/100. This report aggregates EPA drinking water data across 1 local system in South Elgin. We found 46 total violations (15 unresolved).

Real-Time Environment

Live: 05:15 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in South Elgin.

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 South Elgin?

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 South Elgin? See our analysis.

Baby Formula Safety

Is South Elgin tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to South Elgin, water quality is a key factor in long-term property maintenance. With a score of 42/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Requires Mitigation

Health & Family Safety

Residents should monitor Copper (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Compliance Record for South Elgin

46
Violations (5yr)
15
Unresolved
2
Contaminants Tracked
1
Exceeding EPA Limit

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

Frequently Asked Questions

Is South Elgin tap water safe to drink?

Use extra caution — South Elgin scores 42/100.

How many water systems serve South Elgin?

South Elgin is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in South Elgin?

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

What is the water quality score for South Elgin?

The water quality score for South Elgin is 42 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.

What are the top contaminants in South Elgin?

The top contaminants detected in South Elgin include Copper (90th percentile), Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
42/100
Grade
F
Water Systems
1
Population
23,648

South Elgin Water Quality Summary

South Elgin, IL receives a water quality score of 42/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

South Elgin'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.

South Elgin's score of 42 is 24 points below the Illinois state average of 66, 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 →

Key Contaminants

Copper (90th percentile) Violation
1.5 / 1.3 mg/L
0 mg/L MCL: 1.3 mg/L
Lead (90th percentile)
0.0014 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

Get notified if South Elgin's water quality changes

Free email alert when the EPA reports a new violation or boil-water advisory for your water system. No spam — just the alerts you asked for.

By subscribing you agree to receive occasional water-quality alert emails. Unsubscribe anytime. See our Privacy Policy.

Water Systems Serving South Elgin (1)

Related

Compare South Elgin water quality: View all states · Contaminant library · How we score water quality