Marquand, MO Radon Levels

Q: What EPA Radon Zone is Marquand in?

Marquand is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Marquand?

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

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

Marquand, MO Radon Facts

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

County Madison County, MO

Zip Code 63655

Found in rural Madison County in southeastern Missouri, Marquand sits within the Ozark foothills where dolomite and limestone formations can produce moderate radon levels. Testing information for zip code 63655 is currently limited, emphasizing the need for individual home testing. Residents should establish baseline radon measurements given the area's geological characteristics.

6.44

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.44 pCi/L, based on 9 tests from 5 nearby cities. No readings have been submitted for Marquand 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+

Marquand, MO Radon Mitigation

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

Need Radon Mitigation or Testing in Marquand?

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Radon Readings Near Marquand, MO

No homeowner tests have been submitted for Marquand 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
Farmington	27.4 mi	9.50 pCi/L	2
Jackson	28.8 mi	7.00 pCi/L	2
Cape Girardeau	36.2 mi	6.50 pCi/L	2
Bonne Terre	40.1 mi	4.50 pCi/L	2
Ellsinore	45.9 mi	3.00 pCi/L	1

Madison County Radon Profile

EPA mapping assigns Madison 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 Madison 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 Madison County home regardless of zone or a neighbor's results.

Radon FAQ for Marquand, MO

What EPA Radon Zone is Marquand in?

Marquand and the 63655 zip code are in Madison 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 Marquand?

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

Radon mitigation in Marquand 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 Marquand?

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.