Alton, MO Radon Levels

Q: What EPA Radon Zone is Alton in?

Alton is in Oregon County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Alton yet, so readings from the closest cities and the Oregon 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 Alton?

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

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

Alton, MO Radon Facts

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

County Oregon County, MO

Zip Code 65606

Deep in the Missouri Ozarks, Oregon County's Alton sits atop dolomite and limestone bedrock that can produce variable radon conditions throughout the region. With limited testing data available for this 65606 zip code area, homeowners should prioritize radon testing given the area's karst geology.

3.50

pCi/L area average

Below EPA Action Level

Nearby homeowner readings average 3.50 pCi/L, based on 2 tests from 2 nearby cities. No readings have been submitted for Alton 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+

Alton, MO 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 Alton, MO

No homeowner tests have been submitted for Alton 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
West Plains	26.4 mi	4.00 pCi/L	1
Ellsinore	39.9 mi	3.00 pCi/L	1

Oregon County Radon Profile

Oregon 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 Oregon 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 Oregon County.

Radon FAQ for Alton, MO

What EPA Radon Zone is Alton in?

Alton and the 65606 zip code are in Oregon 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 Alton?

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

Radon mitigation in Alton 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 Alton?

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.