Connell, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Connell in?

Connell is in Franklin County, EPA Zone 2.

Q: How much does radon mitigation cost in Connell?

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

Franklin County

EPA Zone 2

Located in Franklin County within the Kennewick Metro area, Connell sits in Washington's Columbia River basin where volcanic bedrock generally produces lower radon levels. This 99326 zip code agricultural community has limited current testing data available. Despite the region's typically lower radon potential, homeowners should still test since individual properties can vary significantly.

Connell, WA Radon Mitigation

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

Connell, WA Radon Testing

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

Connell Radon Facts

Key details about the radon risk profile for Connell and the 99326 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Franklin County, WA

Zip Code

99326

Predicted Screening Level

2–4 pCi/L (Zone 2)

Connell and the 99326 zip code are located in Franklin County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Connell, WA

What EPA Radon Zone is Connell in?

Connell and the 99326 zip code are in Franklin 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 Connell?

Radon mitigation in Connell 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 Connell?

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 Washington

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

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 pCi/L	4
Bellevue	3.75 pCi/L	4
Spokane	11.67 pCi/L	3
Camas	8.00 pCi/L	3
Centralia	7.00 pCi/L	3
Bellingham	4.50 pCi/L	2
Kirkland	4.50 pCi/L	2
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0