EPA data as of Oct 2026 · page updated 2026-10-30

Home hazard report for 60476 — Thornton, IL

ZIP 60476 is served by Thornton: no health-based violations since 2016, latest lead result 2.8 ppb, PFAS not tested. Cook County is in EPA radon zone 2.

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Where ZIP 60476 is

Dashed: ZIP area · blue: utility service area · scroll or pinch to zoom
ZIP code areaZIP center Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

Drinking water: Thornton

EPA IDIL0313090
People served2,386
Sourcesurface water (rivers, lakes)
Connections988

Health-based violations

No health-based violations reported since 2016.

Full record for Thornton →

Lead

Jan 20262.8 ppb
Jul 20254 ppb
Jan 20259.3 ppb
Jan 20223.4 ppb
Jan 20191.3 ppb
Jan 20161.6 ppb
Jan 20133.4 ppb
Jan 20103.7 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS (“forever chemicals”)

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

Radon in Cook County

EPA radon zone 2 — moderate potential. Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.

Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →

Natural hazard risk

FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively Moderate, with relatively moderate social vulnerability and relatively high community resilience.

Cold waveVery High
Heat waveRelatively High
TornadoRelatively High
Riverine floodingRelatively Moderate
Winter weatherRelatively Moderate
EarthquakeRelatively Low
HailRelatively Low
Ice stormRelatively Low
Strong windRelatively Low
HurricaneVery Low
LandslideVery Low
LightningVery Low
WildfireVery Low

FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.

Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.

Superfund sites nearby

SiteStatusDistance
Estech General Chemical Company
Calumet City, Illinois · EPA ID ILD099213498
Active (final NPL)5.6 mi
Schroud Property
Chicago, Illinois · EPA ID ILN000505540
Active (final NPL)7.1 mi
Lake Calumet Cluster
Chicago, Illinois · EPA ID ILD000716852
Active (final NPL)7.8 mi
U.S. Smelter and Lead Refinery, Inc.
East Chicago, Indiana · EPA ID IND047030226
Active (final NPL)7.8 mi
Acme Steel Coke Plant
Chicago, Illinois · EPA ID ILN000509241
Active (final NPL)8.5 mi
Federated Metals Corp Whiting
Hammond, Indiana · EPA ID IND005444104
Active (final NPL)9.0 mi
MIDCO I
Gary, Indiana · EPA ID IND980615421
Active (final NPL)9.1 mi
Ninth Avenue Dump
Gary, Indiana · EPA ID IND980794432
Active (final NPL)9.1 mi
Gary Development Landfill
Gary, Indiana · EPA ID IND077005916
Active (final NPL)9.6 mi

EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.

Buying a home in Thornton? See the 2026 conforming, FHA and jumbo loan limits for Cook County →

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions about 60476

Who supplies drinking water to ZIP 60476?

Thornton (EPA ID IL0313090), a surface water (rivers, lakes) system serving about 2,386 people.

Is there lead in Thornton, IL tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 2.8 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.

Does Thornton, IL water have PFAS?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).

Has the water system in 60476 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 60476?

FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Moderate; the highest-rated hazards are cold wave (very high), heat wave (relatively high), tornado (relatively high).

Are there Superfund sites near 60476?

The nearest active Superfund site is 5.6 miles away. Sites within 10 miles: Estech General Chemical Company (5.6 mi, Active (final NPL)); Schroud Property (7.1 mi, Active (final NPL)); Lake Calumet Cluster (7.8 mi, Active (final NPL)).

Is radon a problem in Cook County?

Cook County is in EPA radon zone 2 (moderate potential). Predicted average indoor radon between 2 and 4 pCi/L. Test your home; many homes here exceed 4 pCi/L.