Foley, MO Radon Levels

Q: What EPA Radon Zone is Foley in?

Foley is in Lincoln County, EPA Zone 2.

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

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

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

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

Foley, MO Radon Facts

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

County Lincoln County, MO

Zip Code 63347

Situated in Lincoln County within the St. Louis Metro area, Foley occupies terrain where Missouri's limestone bedrock can contribute to moderate radon production throughout the region. Current testing data remains limited for this community, though Missouri's geological conditions make individual home testing advisable for all residents. The area's mix of rural properties and suburban development, many featuring full or partial basements, creates the below-grade spaces where radon gas typically concentrates.

8.50

pCi/L area average

Above EPA Action Level

Lincoln County average: 8.50 pCi/L, based on 4 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Foley 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+

Foley, 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 Foley?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Lincoln County Pros

1-800-299-3578 636-205-4618 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Foley, MO

No homeowner tests have been submitted for Foley 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
Troy	10.6 mi	8.50 pCi/L	4
Lake Saint Louis	17.9 mi	5.00 pCi/L	2
O Fallon	18.5 mi	7.75 pCi/L	4
Saint Peters	20.6 mi	7.00 pCi/L	1
Saint Charles	23.0 mi	5.00 pCi/L	1
Hazelwood	29.0 mi	20.00 pCi/L	1
Chesterfield	30.5 mi	5.00 pCi/L	1
Ballwin	34.2 mi	4.00 pCi/L	1

Lincoln County Radon Profile

EPA mapping assigns Lincoln 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 Lincoln County average 8.50 pCi/L across 4 tests — 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 Lincoln County home regardless of zone or a neighbor's results.

Radon FAQ for Foley, MO

What EPA Radon Zone is Foley in?

Foley and the 63347 zip code are in Lincoln 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 Foley?

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

Radon mitigation in Foley 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 Foley?

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.