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      Garrison, ND Radon Levels

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

      Garrison, ND Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County McLean County, ND
      Zip Code 58540
      Avg. User Level 6.00 pCi/L
      User Tests 1

      Located in McLean County along the Missouri River, Garrison recorded an average radon level of 6.0 pCi/L from 1 test, exceeding the EPA action threshold. The area's Pierre Shale geology and proximity to Lake Sakakawea create conditions favorable for radon accumulation in homes. Residents of zip code 58540 should test their properties and consider mitigation systems if radon levels remain elevated.

      6.00
      pCi/L average
      Above EPA Action Level

      Based on 1 user-submitted radon test for homes in Garrison, ND. The EPA recommends taking action at or above 4.0 pCi/L.

      0
      4.0 EPA
      10+

      Garrison, ND Radon Mitigation

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

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      Garrison, ND Radon Levels

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

      Radon LevelCityHome AgeFoundation
      6 pCi/L Garrison, ND 100+ Years Full Basement

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

      Radon FAQ for Garrison, ND

      What is the average radon level in Garrison, ND?
      Based on 1 user-submitted test, the average radon level in Garrison is 6.00 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 Garrison in?
      Garrison and the 58540 zip code are in McLean 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 Garrison?
      Radon mitigation in Garrison 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 Garrison?
      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.

      CityAvg User Radon LevelSubmissions
      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

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578

      A licensed contractor will contact you immediately.

      * Required