Ashland, MO Radon Levels

Q: What EPA Radon Zone is Ashland in?

Ashland is in Boone County, EPA Zone 2.

Q: How much does radon mitigation cost in Ashland?

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

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

Ashland, MO Radon Facts

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

County Boone County, MO

Zip Code 65010

Nestled in Boone County near the Columbia Metro area, Ashland lies within Missouri's karst limestone region where underground cave systems can influence radon migration patterns. Although testing data for the 65010 zip code remains limited, the underlying geology suggests moderate radon potential. Properties built over limestone bedrock should be tested regularly, as radon levels can vary significantly even within the same neighborhood.

4.00

pCi/L area average

Above EPA Action Level

Boone County average: 4.00 pCi/L, based on 4 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Ashland 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+

Ashland, 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 Ashland, MO

No homeowner tests have been submitted for Ashland 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
Columbia	10.7 mi	3.00 pCi/L	2
Holts Summit	13.0 mi	4.00 pCi/L	1
Jefferson City	15.9 mi	6.00 pCi/L	1
Hallsville	22.0 mi	5.00 pCi/L	2
Boonville	28.8 mi	4.00 pCi/L	1
Mexico	32.9 mi	4.00 pCi/L	1
Gravois Mills	47.8 mi	7.00 pCi/L	1

Boone County Radon Profile

The soils and bedrock of Boone County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 2 cities in Boone County average 4.00 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Boone County to test, as levels can differ between neighboring homes.

Radon FAQ for Ashland, MO

What EPA Radon Zone is Ashland in?

Ashland and the 65010 zip code are in Boone 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 Ashland?

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

Radon mitigation in Ashland 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 Ashland?

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.