Neponset, IL Radon Levels

Q: What EPA Radon Zone is Neponset in?

Neponset is in Bureau County, EPA Zone 1.

Q: How much does radon mitigation cost in Neponset?

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

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

Neponset, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Bureau County, IL

Zip Code 61345

Situated in Bureau County along the Illinois River valley, Neponset experiences the geological influence of alluvial soils over Ordovician limestone that can create variable radon conditions. This 61345 community in the Peoria Metro area has limited radon testing data available. Homeowners should conduct professional testing, as the underlying limestone bedrock common to this region can contribute to radon accumulation in homes with basements or lower-level living spaces.

7.50

pCi/L area average

Above EPA Action Level

Bureau County average: 7.50 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Neponset itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Neponset, 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 Neponset, IL

No homeowner tests have been submitted for Neponset 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
Kewanee	7.7 mi	8.00 pCi/L	1
Annawan	9.6 mi	10.00 pCi/L	1
Walnut	19.7 mi	5.00 pCi/L	1
Princeton	19.7 mi	11.50 pCi/L	2
Geneseo	23.1 mi	6.00 pCi/L	1
Spring Valley	30.7 mi	2.00 pCi/L	1
Orion	31.0 mi	4.00 pCi/L	1
Dunlap	31.9 mi	7.00 pCi/L	1

Bureau County Radon Profile

Because of its underlying geology, Bureau County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Bureau County average 7.50 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Bureau County home regardless of zone or a neighbor's results.

Radon FAQ for Neponset, IL

What EPA Radon Zone is Neponset in?

Neponset and the 61345 zip code are in Bureau County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Neponset?

No homeowner radon tests have been submitted for Neponset yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Bureau County average—are the best available indicator of local conditions until Neponset 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 Neponset?

Radon mitigation in Neponset 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 Neponset?

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.