Ray, ND Radon Levels

Q: What EPA Radon Zone is Ray in?

Ray is in Williams County, EPA Zone 1.

Q: How much does radon mitigation cost in Ray?

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

Check local Ray radon levels and find certified testing and mitigation professionals to keep your home safe

Ray, ND Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Williams County, ND

Zip Code 58849

Found in Williams County within North Dakota's Bakken oil region, Ray (zip 58849) sits in EPA Zone 1, though the state's overall geology can still create elevated radon conditions. Testing data for this small plains community is currently limited, making individual home testing valuable given North Dakota's variable geological conditions. The area's mix of older homesteads and newer worker housing presents different foundation characteristics that influence radon accumulation.

Ray, ND Radon Mitigation

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

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Radon FAQ for Ray, ND

What EPA Radon Zone is Ray in?

Ray and the 58849 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 Ray?

Radon mitigation in Ray 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 Ray?

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 in North Dakota with the most user-submitted radon test data, ranked by number of submissions.

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