Lapwai, ID Radon Mitigation and Testing

Q: What EPA Radon Zone is Lapwai in?

Lapwai is in Nez Perce County, EPA Zone 3.

Q: How much does radon mitigation cost in Lapwai?

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

Nez Perce County

EPA Zone 3

Situated in Nez Perce County in north-central Idaho, Lapwai lies within the Columbia River Plateau where basaltic bedrock typically produces lower radon levels. Testing data for zip code 83540 is currently unavailable, though the area's EPA Zone 3 classification suggests generally lower risk. Nevertheless, individual home testing remains advisable, particularly for properties with basements or those built near areas of sedimentary rock exposure.

Lapwai, ID Radon Mitigation

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

Lapwai, ID Radon Testing

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

Lapwai Radon Facts

Key details about the radon risk profile for Lapwai and the 83540 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Nez Perce County, ID

Zip Code

83540

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Lapwai and the 83540 zip code are located in Nez Perce 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 Lapwai, ID

What EPA Radon Zone is Lapwai in?

Lapwai and the 83540 zip code are in Nez Perce 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 Lapwai?

Radon mitigation in Lapwai 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 Lapwai?

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 Idaho

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

City	Avg User Radon Level	Submissions
Idaho Falls	7.29 pCi/L	7
Hailey	7.83 pCi/L	6
Post Falls	9.00 pCi/L	5
Coeur D Alene	9.00 pCi/L	4
Moscow	7.75 pCi/L	4
Victor	6.67 pCi/L	3
Driggs	16.00 pCi/L	2
Hayden	8.50 pCi/L	2
Pocatello	8.50 pCi/L	2
Eagle	6.00 pCi/L	1
Boise	No submissions	0
Nampa	No submissions	0
Sandpoint	No submissions	0