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Williamsburg, OH Radon Levels

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


Williamsburg, OH Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Clermont County, OH
Zip Code 45176
Avg. User Level 18.00 pCi/L
User Tests 1

Positioned in Clermont County within the Cincinnati Metro area, Williamsburg has recorded an average radon level of 18.0 pCi/L based on recent testing, dramatically exceeding the EPA action level. This 45176 community sits in EPA Zone 2 where glacial deposits over limestone bedrock can enhance radon production. Given this extremely elevated reading, immediate radon testing and professional mitigation should be top priorities for all area homeowners.

18.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Williamsburg, OH. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Williamsburg, OH Radon Mitigation

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

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Williamsburg, OH Radon Levels

User-submitted radon test readings from homes in the Williamsburg area.

Radon LevelCityHome AgeFoundation
18 pCi/L Williamsburg, OH 51-99 Years Full Basement

Have a radon test result for Williamsburg? Submit your reading to help other homeowners.

Radon FAQ for Williamsburg, OH

What is the average radon level in Williamsburg, OH?
Based on 1 user-submitted test, the average radon level in Williamsburg is 18.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Williamsburg in?
Williamsburg and the 45176 zip code are in Clermont 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.
How much does radon mitigation cost in Williamsburg?
Radon mitigation in Williamsburg 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 Williamsburg?
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.

Most Active Radon Markets in Ohio

Cities in Ohio with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Marietta 8.00 pCi/L 5
Cincinnati 5.20 pCi/L 5
Hilliard 11.75 pCi/L 4
Wilmington 5.25 pCi/L 4
Newark 15.00 pCi/L 3
Athens 11.33 pCi/L 3
Findlay 10.33 pCi/L 3
Perrysburg 9.67 pCi/L 3
Powell 8.33 pCi/L 3
Columbus 6.00 pCi/L 3