Port Hadlock, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Port Hadlock in?

Port Hadlock is in Jefferson County, EPA Zone 3.

Q: How much does radon mitigation cost in Port Hadlock?

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

Jefferson County

EPA Zone 3

Located on the Olympic Peninsula in Jefferson County, Port Hadlock sits on marine terrace deposits and glacial sediments that characterize much of Washington's coastal region. With radon testing data currently unavailable for zip code 98339, residents should prioritize testing their homes, especially properties with basements or crawl spaces where this naturally occurring gas can accumulate regardless of generally favorable coastal geology.

Port Hadlock, WA Radon Mitigation

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

Port Hadlock, WA Radon Testing

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

Port Hadlock Radon Facts

Key details about the radon risk profile for Port Hadlock and the 98339 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Jefferson County, WA

Zip Code

98339

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Port Hadlock and the 98339 zip code are located in Jefferson County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Port Hadlock, WA

What EPA Radon Zone is Port Hadlock in?

Port Hadlock and the 98339 zip code are in Jefferson County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Port Hadlock?

Radon mitigation in Port Hadlock 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 Port Hadlock?

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