Call For A Free Quote: 1-800-299-3578 (toll free)

Richwood, OH Radon Levels

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


Richwood, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Union County, OH
Zip Code 43344
Avg. User Level 20.00 pCi/L
User Tests 1

Situated in Union County within the Columbus Metro area, Richwood has recorded an exceptionally high average radon level of 20.0 pCi/L, which significantly exceeds the EPA action threshold. The area's glacial till deposits over limestone bedrock create ideal conditions for radon production and migration in zip code 43344. Immediate testing and professional mitigation are strongly recommended for all properties in this community.

20.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Richwood, OH 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 Richwood?

  • 100% Free, No-Obligation Quotes
  • Matches You with State-Licensed Union County Pros
1-800-299-3578 Toll-free · Mon–Fri 8am–6pm ET

Richwood, OH Radon Levels

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

Radon LevelCityHome AgeFoundation
20 pCi/L Richwood, OH 0-20 Years Partial Basement

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

Radon FAQ for Richwood, OH

What is the average radon level in Richwood, OH?
Based on 1 user-submitted test, the average radon level in Richwood is 20.00 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 Richwood in?
Richwood and the 43344 zip code are in Union County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Richwood?
Radon mitigation in Richwood 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 Richwood?
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