Lacey, WA Radon Mitigation and Testing

Q: What is the average radon level in Lacey, WA?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Lacey in?

Lacey is in Thurston County, EPA Zone 3.

Q: How much does radon mitigation cost in Lacey?

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

Avg: 4.00 pCi/L

Thurston County

EPA Zone 3

1 user test

Residents of Lacey in Thurston County within the Olympia Metro can expect radon levels averaging 4.0 pCi/L, precisely at EPA's action threshold requiring careful attention. The Puget Sound region's glacial deposits and volcanic ash layers create complex geology that produces variable radon conditions throughout zip code 98503. Homeowners should conduct additional testing to determine whether mitigation measures are necessary, as readings at this threshold level warrant ongoing monitoring.

4.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Lacey, WA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Lacey, WA Radon Mitigation

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

Lacey, WA Radon Testing

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

Lacey, Washington Radon Levels

User-submitted radon test readings from homes in the Lacey area.

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Lacey, WA	21-50 Years	Partial Basement	Oct 2022

Have a radon test result for Lacey? Submit your reading to help other homeowners.

Lacey Radon Facts

Key details about the radon risk profile for Lacey and the 98503 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Thurston County, WA

Zip Code

98503

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Lacey and the 98503 zip code are located in Thurston 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 Lacey, WA

What is the average radon level in Lacey, WA?

Based on 1 user-submitted test, the average radon level in Lacey is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Lacey in?

Lacey and the 98503 zip code are in Thurston 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 Lacey?

Radon mitigation in Lacey 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 Lacey?

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