C
64

US Water Score: C

Aurora, IL 60504

Du Page County · Population served: 183,000 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🏔
AURORA
Surface water · Pop. 183,000
PWSID: IL0894070
🌊
CLARK COUNTY CONS PWSD 1
Groundwater · Pop. 7,140
PWSID: MO2024138

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
24.0
15 ppb 1 ppb

PFAS / Forever Chemicals

4 detected Below comparison values

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFBA5.9 pptNo standard500 pptNo federal MCL shown
PFPeA5.3 pptNo standardNo federal MCL shown
PFHxA4.7 pptNo standard400 pptNo federal MCL shown
PFBS3.7 ppt2000 ppt100 pptBelow comparison value

Violation History (Last 5 Years)

7Total (5yr)
0Health-Based
1Major

Water Quality Summary

Understanding Your Water in Aurora

Tap water quality in Aurora, Illinois (60504) receives an overall grade of C (Mixed record-based signals) with a score of 64 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Illinois state average of 64. Compared to the national average (75), this area scores significantly lower. The area is served by 2 water systems providing water to approximately 183,000 people, using surface water and groundwater sources. PFAS testing detected 4 compounds, all below the EPA final MCL values used for comparison.

Your Score 64/100 C
vs State Equal to Illinois average (64)
vs National 11 pts below national avg (75)

What a Grade C Means

A score of 64/100 indicates fair performance in the US Water Score model for Aurora, IL. The records show noteworthy concerns, such as elevated contaminant levels, violation history, or both. Review the detailed contaminant data and official utility reports before making decisions.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Aurora, Illinois receives an internal US Water Score grade of C (Fair) with a score of 64/100. Our model found some system-level concerns, such as violation history or elevated contaminant levels. Review your utility's Consumer Confidence Report and consult a qualified professional for household-specific health questions.

ZIP code 60504 is served by 2 water systems using surface water, groundwater sources, providing water to approximately 183,000 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead levels in the public-system record for Aurora, Illinois are 24.0 ppb, above the currently applicable EPA action level of 15 ppb. EPA's Lead and Copper Rule Improvements lower that action level to 10 ppb when the new requirements take effect. This system-level result does not measure an individual tap; consider a certified lead-removal filter and independent tap testing.

4 PFAS compounds were detected in water serving Aurora, Illinois, with reported values below the EPA final MCL values used by this site. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.

Water systems serving Aurora, Illinois have received 7 violations in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Aurora, Illinois should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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