Keswick, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Keswick in?

Keswick is in Keokuk County, EPA Zone 1.

Q: How much does radon mitigation cost in Keswick?

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

Keokuk County

EPA Zone 1

Positioned in southeastern Iowa's Keokuk County, Keswick sits on glacial till deposits over limestone and shale bedrock that contribute to the state's high radon potential. Testing data for zip code 50136 remains limited, though Iowa's consistently elevated radon levels statewide underscore the importance of individual home assessment. The region's agricultural setting and geological conditions make professional radon testing essential for all residents.

Keswick, IA Radon Mitigation

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

Keswick, IA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Keswick Radon Facts

Key details about the radon risk profile for Keswick and the 50136 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Keokuk County, IA

Zip Code

50136

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Keswick and the 50136 zip code are located in Keokuk County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Keswick, IA

What EPA Radon Zone is Keswick in?

Keswick and the 50136 zip code are in Keokuk 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 Keswick?

Radon mitigation in Keswick 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 Keswick?

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 Iowa

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Waterloo	8.50 pCi/L	4
Ames	9.67 pCi/L	3
Fairfield	14.00 pCi/L	2
Mount Pleasant	12.00 pCi/L	2
Ottumwa	5.50 pCi/L	2
Iowa City	7.00 pCi/L	1
Muscatine	No submissions	0