Calmar, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Calmar in?

Calmar is in Winneshiek County, EPA Zone 1.

Q: How much does radon mitigation cost in Calmar?

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

Winneshiek County

EPA Zone 1

Located in northeast Iowa's Winneshiek County along bluff country terrain, Calmar (52132) sits in EPA Zone 1 with limestone bedrock and glacial deposits that create high radon potential. The area's karst geology and underground drainage systems can concentrate radon gas significantly. While specific local testing data isn't available, Iowa's reputation for elevated radon levels makes professional testing essential for all Calmar residents, especially those in homes with basements.

Calmar, IA Radon Mitigation

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

Calmar, IA Radon Testing

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

Calmar Radon Facts

Key details about the radon risk profile for Calmar and the 52132 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Winneshiek County, IA

Zip Code

52132

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Calmar and the 52132 zip code are located in Winneshiek 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 Calmar, IA

What EPA Radon Zone is Calmar in?

Calmar and the 52132 zip code are in Winneshiek 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 Calmar?

Radon mitigation in Calmar 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 Calmar?

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