Thornfield, MO Radon Levels

Q: What EPA Radon Zone is Thornfield in?

Thornfield is in Ozark County, EPA Zone 2.

Q: How much does radon mitigation cost in Thornfield?

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

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

Thornfield, MO Radon Facts

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

County Ozark County, MO

Zip Code 65762

Located in Ozark County within the rolling hills of southern Missouri's Ozark plateau, Thornfield sits atop limestone and dolomite bedrock formations that can contribute to radon gas accumulation. Many homes in the area feature pier foundations or partial basements typical of rural construction. Given limited radon testing data currently available for zip code 65762, homeowners should consider professional radon testing to establish baseline levels for their properties.

6.11

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.11 pCi/L, based on 9 tests from 7 nearby cities. No readings have been submitted for Thornfield 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+

Thornfield, 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 Thornfield, MO

No homeowner tests have been submitted for Thornfield 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
Branson	33.0 mi	4.00 pCi/L	1
Reeds Spring	38.3 mi	6.00 pCi/L	1
West Plains	43.4 mi	4.00 pCi/L	1
Kimberling City	43.6 mi	7.00 pCi/L	2
Lampe	44.9 mi	6.50 pCi/L	2
Marshfield	46.9 mi	7.00 pCi/L	1
Springfield	48.8 mi	7.00 pCi/L	1

Ozark County Radon Profile

EPA mapping assigns Ozark County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Ozark County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Ozark County home regardless of zone or a neighbor's results.

Radon FAQ for Thornfield, MO

What EPA Radon Zone is Thornfield in?

Thornfield and the 65762 zip code are in Ozark 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 Thornfield?

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

Radon mitigation in Thornfield 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 Thornfield?

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.