South Fork, MO Radon Levels

Q: What EPA Radon Zone is South Fork in?

South Fork is in Howell County, EPA Zone 2.

Q: How much does radon mitigation cost in South Fork?

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

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

South Fork, MO Radon Facts

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

County Howell County, MO

Zip Code 65776

Rural South Fork in Howell County represents Missouri's Ozark region, where underlying limestone and dolomite bedrock can contribute to moderate radon potential. The community's housing includes older farmsteads and newer rural residences, with testing data for zip code 65776 currently insufficient for area-wide assessment. Given the geological characteristics typical of southern Missouri's karst terrain, individual home testing is recommended for accurate radon level determination.

4.00

pCi/L area average

Above EPA Action Level

Howell County average: 4.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for South Fork 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+

South Fork, MO Radon Mitigation

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

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Howell County Radon Profile

EPA mapping assigns Howell County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 1 city in Howell County average 4.00 pCi/L across 1 test — 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 Howell County home regardless of zone or a neighbor's results.

Radon FAQ for South Fork, MO

What EPA Radon Zone is South Fork in?

South Fork and the 65776 zip code are in Howell 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 South Fork?

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

Radon mitigation in South Fork 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 South Fork?

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.