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

Home hazard report for 62234 — Collinsville, IL

ZIP 62234 is served by Collinsville: no health-based violations since 2016, latest lead result 0 ppb, PFAS 18 ppt. Madison County is in EPA radon zone 2.

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Where ZIP 62234 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: Collinsville

EPA IDIL1194280
People served30,616
Sourcegroundwater (wells)
Connections12,614

Health-based violations

No health-based violations reported since 2016.

Full record for Collinsville →

Other systems overlapping this ZIP: IL American-East St Louis, Mound PWD.

Lead

Jan 20260 ppb
Jul 20250 ppb
Jan 20254.5 ppb
Jan 20210 ppb
Jul 20200 ppb
Jan 20200 ppb
Jul 20190 ppb
Jan 20150 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”)

CompoundHighest resultSamples with detectionEPA limit
PFHxA22 ppt1 of 2—
PFPeA21 ppt1 of 2—
PFOA18 ppt1 of 24 ppt MCL
PFBS16 ppt1 of 2—
PFBA13 ppt1 of 2—
PFHpA13 ppt1 of 2—
PFHxS12 ppt1 of 2—
PFOS8.9 ppt1 of 24 ppt MCL
PFNAnot detected0 of 2—
PFDAnot detected0 of 2—
HFPO-DA (GenX)not detected0 of 2—

EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5), samples 2023–2025; ppt = parts per trillion (ng/L). The 4.0 ppt maximum contaminant levels for PFOA and PFOS were set by EPA in 2024; water systems have until the end of the decade to comply.

Radon in Madison 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 waveRelatively High
HailRelatively High
Heat waveRelatively High
TornadoRelatively High
EarthquakeRelatively Moderate
LightningRelatively Moderate
Riverine floodingRelatively Moderate
Winter weatherRelatively Moderate
DroughtRelatively Low
Ice stormRelatively Low
LandslideRelatively Low
Strong windRelatively Low
HurricaneVery 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
Old American Zinc Plant
Fairmont City, Illinois · EPA ID IL0000034355
Active (final NPL)6.8 mi
Jennison-Wright Corporation
Granite City, Illinois · EPA ID ILD006282479
Active (final NPL)9.4 mi
NL Industries/Taracorp Lead Smelter
Granite City, Illinois · EPA ID ILD096731468
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 Collinsville? See the 2026 conforming, FHA and jumbo loan limits for Madison 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 62234

Who supplies drinking water to ZIP 62234?

Collinsville (EPA ID IL1194280), a groundwater (wells) system serving about 30,616 people.

Is there lead in Collinsville, IL tap water?

The utility’s latest 90th-percentile lead result (Jan 2026) was 0 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 Collinsville, IL water have PFAS?

Highest PFOA or PFOS result in EPA’s 2023–2025 testing was at or above 4.0 ppt, EPA’s 2024 maximum contaminant level for each. 8 PFAS compounds detected.

Has the water system in 62234 had violations?

No health-based violations reported since 2016.

What natural hazards affect ZIP 62234?

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

Are there Superfund sites near 62234?

The nearest active Superfund site is 6.8 miles away. Sites within 10 miles: Old American Zinc Plant (6.8 mi, Active (final NPL)); Jennison-Wright Corporation (9.4 mi, Active (final NPL)); NL Industries/Taracorp Lead Smelter (9.6 mi, Active (final NPL)).

Is radon a problem in Madison County?

Madison 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.