Opheim, MT Radon Mitigation and Testing

Q: What EPA Radon Zone is Opheim in?

Opheim is in Valley County, EPA Zone 1.

Q: How much does radon mitigation cost in Opheim?

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

Valley County

EPA Zone 1

Opheim residents in Valley County have limited radon testing data available for zip code 59250. Montana's glacial till deposits over sedimentary bedrock can create conditions favorable for radon accumulation, particularly in basement homes during winter months. Given the EPA Zone 1 designation, testing is strongly recommended for all properties.

Opheim, MT Radon Mitigation

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

Opheim, MT Radon Testing

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

Opheim Radon Facts

Key details about the radon risk profile for Opheim and the 59250 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Valley County, MT

Zip Code

59250

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Opheim and the 59250 zip code are located in Valley County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Opheim, MT

What EPA Radon Zone is Opheim in?

Opheim and the 59250 zip code are in Valley County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Opheim?

Radon mitigation in Opheim 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 Opheim?

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 Montana

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

City	Avg User Radon Level	Submissions
Butte	10.20 pCi/L	10
Missoula	6.25 pCi/L	8
Florence	11.67 pCi/L	3
Bozeman	10.33 pCi/L	3
Helena	8.67 pCi/L	3
Stevensville	7.67 pCi/L	3
Sidney	7.33 pCi/L	3
Billings	5.33 pCi/L	3
Miles City	3.33 pCi/L	3
Kalispell	7.50 pCi/L	2
Great Falls	4.50 pCi/L	2
Whitefish	4.00 pCi/L	2
Ennis	9.00 pCi/L	1
Livingston	No submissions	0