Alamo, ND Radon Mitigation and Testing

Q: What EPA Radon Zone is Alamo in?

Alamo is in Williams County, EPA Zone 1.

Q: How much does radon mitigation cost in Alamo?

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

Williams County

EPA Zone 1

Situated in Williams County in northwestern North Dakota's Bakken oil region, Alamo experiences the state's challenging radon geology with uranium-rich Pierre Shale formations beneath the surface. Testing data remains limited for this 58830 community, making individual home testing essential given North Dakota's high radon potential.

Alamo, ND Radon Mitigation

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

Alamo, ND Radon Testing

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

Alamo Radon Facts

Key details about the radon risk profile for Alamo and the 58830 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Williams County, ND

Zip Code

58830

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Alamo and the 58830 zip code are located in Williams 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 Alamo, ND

What EPA Radon Zone is Alamo in?

Alamo and the 58830 zip code are in Williams 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 Alamo?

Radon mitigation in Alamo 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 Alamo?

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 North Dakota

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

City	Avg User Radon Level	Submissions
Grand Forks	13.50 pCi/L	8
Grafton	7.67 pCi/L	3
Dickinson	6.00 pCi/L	3
Watford City	5.50 pCi/L	2
Bismarck	No submissions	0