Olney, IL Radon Levels

Q: What EPA Radon Zone is Olney in?

Olney is in Richland County, EPA Zone 2.

Q: Why are radon readings shown from areas near Olney?

No homeowner radon tests have been submitted for Olney yet, so readings from the closest cities and the Richland County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Olney?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Olney radon levels and find certified testing and mitigation professionals to keep your home safe

Olney, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Richland County, IL

Zip Code 62450

Situated in southeastern Illinois's Richland County, Olney lies within the Illinois Basin where Pennsylvanian-era coal measures and shale create moderate radon conditions. Testing data for this community is currently limited, but the EPA Zone 2 classification indicates variable radon potential across the region. Given the area's geological setting and typical housing with basements, local residents should prioritize radon testing.

7.78

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.78 pCi/L, based on 9 tests from 5 nearby cities. No readings have been submitted for Olney yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Olney, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Olney, IL

No homeowner tests have been submitted for Olney yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Bridgeport	17.1 mi	5.00 pCi/L	1
Mount Carmel	27.0 mi	5.00 pCi/L	2
Palestine	31.2 mi	18.50 pCi/L	2
Effingham	37.2 mi	4.33 pCi/L	3
Kell	47.4 mi	5.00 pCi/L	1

Richland County Radon Profile

Richland County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Richland County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Richland County.

Radon FAQ for Olney, IL

What EPA Radon Zone is Olney in?

Olney and the 62450 zip code are in Richland County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Olney?

No homeowner radon tests have been submitted for Olney yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Richland County average—are the best available indicator of local conditions until Olney homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Olney?

Radon mitigation in Olney typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Olney?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.