Harper, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Harper in?

Harper is in Malheur County, EPA Zone 2.

Q: How much does radon mitigation cost in Harper?

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

Malheur County

EPA Zone 2

Situated in Malheur County within Oregon's high desert region, Harper's location on volcanic and sedimentary terrain generally produces lower radon levels than many other areas. However, with limited testing data available for the 97906 zip code community, professional radon assessment remains valuable for establishing home-specific indoor air quality baselines.

Harper, OR Radon Mitigation

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

Harper, OR Radon Testing

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

Harper Radon Facts

Key details about the radon risk profile for Harper and the 97906 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Malheur County, OR

Zip Code

97906

Predicted Screening Level

2–4 pCi/L (Zone 2)

Harper and the 97906 zip code are located in Malheur 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 Harper, OR

What EPA Radon Zone is Harper in?

Harper and the 97906 zip code are in Malheur 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 Harper?

Radon mitigation in Harper 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 Harper?

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 Oregon

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

City	Avg User Radon Level	Submissions
Corvallis	5.60 pCi/L	5
Astoria	9.25 pCi/L	4
La Grande	10.67 pCi/L	3
Bend	3.33 pCi/L	3
Salem	9.00 pCi/L	2
Eugene	7.00 pCi/L	2
Medford	7.00 pCi/L	1
Dundee	6.00 pCi/L	1
Ashland	4.00 pCi/L	1
Portland	4.00 pCi/L	1
Lincoln City	No submissions	0
West Linn	No submissions	0