La Grande, OR Radon Mitigation and Testing

Q: What is the average radon level in La Grande, OR?

Based on 2 user-submitted tests, the average radon level is 14.00 pCi/L.

Q: What EPA Radon Zone is La Grande in?

La Grande is in Union County, EPA Zone 2.

Q: How much does radon mitigation cost in La Grande?

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

Avg: 14.00 pCi/L

Union County

EPA Zone 2

2 user tests

La Grande is located in Union County, Oregon. With 2 user-submitted readings averaging 14.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 97850 zip code.

14.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in La Grande, OR. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

La Grande, OR Radon Mitigation

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

La Grande, OR Radon Testing

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

La Grande, Oregon Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	La Grande, OR	51-99 Years	—	Nov 2021
8 pCi/L	La Grande, OR	51-99 Years	Full Basement	Mar 2021
4 pCi/L	LA GRANDE, OR	51-99 Years	—	Jul 2015

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

La Grande Radon Facts

Key details about the radon risk profile for La Grande and the 97850 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Union County, OR

Zip Code

97850

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

14.00 pCi/L

User Tests Submitted

La Grande and the 97850 zip code are located in Union 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 La Grande, OR

What is the average radon level in La Grande, OR?

Based on 2 user-submitted tests, the average radon level in La Grande is 14.00 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 La Grande in?

La Grande and the 97850 zip code are in Union 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 La Grande?

Radon mitigation in La Grande 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 La Grande?

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