Romeoville, IL Water Safety: 83/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
In current tracking cycles, Romeoville records above-average water quality outcomes for IL; compliance history over recent years shows few departures from federal standards and no systemic failures across its water systems.
How Romeoville Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Romeoville Water
- Average lead level: 0.0014 mg/L.
- Homes built before 1986: 33% — older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 11.84.
Who Supplies Your Water in Romeoville
Throughout Romeoville, IL, water comes from one of 3 primary utilities out of 4 total systems — independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.
Overview
We track water quality and home safety data for 1 ZIP code in Romeoville, Illinois (population ~41,933), covering 4 community water systems serving approximately 142,506 people region-wide.
No EPA violations recorded across any ZIP codes in Romeoville — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Romeoville: B (83/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Romeoville water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0014 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 60446 | B | Romeoville | 50,458 |
All ZIP Codes in Romeoville
- 60446 [B]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Romeoville
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Romeoville
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Roughly balanced between older and newer construction, Romeoville shows a median build year of 1993 — a mid-range figure that places meaningful amounts of the residential inventory on both sides of the 1986 federal plumbing-solder ban.
Most homes in Romeoville were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Romeoville Homeowners
In Romeoville, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Romeoville are relatively low compared to home values. The $1,100–$3,400 estimated range is a small fraction of median property value. Home values are 33% above the Illinois average.
Lead Exposure Risk for Children in Romeoville
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
33% — that captures the slice of Romeoville housing dating from before the federal ban on solder containing lead. It pairs with aggregate utility readings that either approach or cross 0.015 mg/L, the benchmark set under the EPA Lead and Copper Rule. Together, the two figures shift one-home reads into a standard household-level confirmation, particularly for families with kids. A certified lead-removal filter is available through retailer-verified channels if a kit returns results that warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Romeoville
The NFIP claim record for Romeoville — 9 filed incidents — reflects genuine, recurring flood exposure rather than an isolated event or two. When a community accumulates flood claims at this volume and carries 100% of its ZIP codes inside FEMA-designated zones, flood history starts to factor into water quality planning in ways it doesn't for lower-exposure areas. Flooding introduces specific contamination pathways — runoff overwhelming treatment facility intake, surface water infiltrating private wells, and pressure disruptions in distribution systems allowing backflow — all of which become more relevant as flood frequency increases.
Romeoville has a moderate flood history with 9 FEMA claims averaging $2,518 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,100</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Romeoville, IL