Water Quality in 60540 — Naperville, IL
EPA data for NAPERVILLE
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 60540 in Naperville, Illinois is served by NAPERVILLE (EPA ID: IL0434670). This system provides water to approximately 156,406 people from surface water sources.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| April 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 5 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Illinois
- 60004 (Arlington Heights) — 45 violations
- 60007 (Elk Grove Village) — 4 violations
- 60010 (Barrington) — 1 violation
- 60012 (Crystal Lake) — 23 violations
- 60016 (Des Plaines) — 3 violations
- 60025 (Glenview) — 4 violations
- 60038 (Palatine)
- 60048 (Libertyville) — 5 violations
- 60050 (Mchenry) — 124 violations
- 60062 (Northbrook) — 12 violations
- 60064 (North Chicago) — 18 violations
- 60076 (Skokie) — 16 violations
- 60079 (Waukegan) — 14 violations
- 60105 (Bensenville) — 8 violations
- 60108 (Bloomingdale) — 1 violation
- 60116 (Carol Stream) — 4 violations
- 60120 (Elgin) — 39 violations
- 60137 (Glen Ellyn) — 1 violation
- 60159 (Schaumburg) — 23 violations
- 60160 (Melrose Park) — 119 violations
Nearby Water Quality Reports
- 60440 (Bolingbrook) — 5 mi
- 60502 (Aurora) — 6 mi — 18 violations
- 60187 (Wheaton) — 7 mi — 4 violations
- 60137 (Glen Ellyn) — 8 mi — 1 violation
- 60185 (West Chicago) — 9 mi — 3 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for NAPERVILLE (IL0434670) on EPA.gov.
Frequently Asked Questions
Is the tap water in 60540 safe to drink?
Based on EPA records, the water system serving ZIP code 60540 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 60540’s water come from?
The primary water source for this area is surface water. NAPERVILLE serves approximately 156,406 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 60540 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 60540. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 60540?
Radon zone data is not available for ZIP code 60540. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.