Delhi, IA Radon Mitigation and Testing

Q: What EPA Radon Zone is Delhi in?

Delhi is in Delaware County, EPA Zone 1.

Q: How much does radon mitigation cost in Delhi?

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

Delaware County

EPA Zone 1

Found in Delaware County in northeastern Iowa, Delhi falls within EPA Zone 1, indicating high radon potential throughout the region. The area's deep glacial deposits and underlying limestone bedrock create ideal geological conditions for radon gas generation and migration into residential foundations. Limited testing data for zip code 52223 underscores the importance of individual home testing, particularly for the area's mix of historic and modern homes with basement foundations common to Iowa construction.

Delhi, IA Radon Mitigation

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

Delhi, IA Radon Testing

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

Delhi Radon Facts

Key details about the radon risk profile for Delhi and the 52223 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Delaware County, IA

Zip Code

52223

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Delhi and the 52223 zip code are located in Delaware 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 Delhi, IA

What EPA Radon Zone is Delhi in?

Delhi and the 52223 zip code are in Delaware 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 Delhi?

Radon mitigation in Delhi 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 Delhi?

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