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      Ridgefield, WA Radon Levels

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

      Ridgefield, WA Radon Facts

      EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
      County Clark County, WA
      Zip Code 98642
      Avg. User Level 5.00 pCi/L
      User Tests 1

      Ridgefield in Clark County recorded an average radon level of 5.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. This Portland Metro community sits on Columbia River volcanic deposits that can concentrate radon gas in residential foundations. Given this elevated reading from zip code 98642, homeowners should prioritize professional radon testing and consider mitigation if levels exceed EPA guidelines.

      5.00
      pCi/L average
      Above EPA Action Level

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

      0
      4.0 EPA
      10+

      Ridgefield, WA Radon Mitigation

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

      Need Radon Mitigation or Testing in Ridgefield?

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      Ridgefield, WA Radon Levels

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

      Radon LevelCityHome AgeFoundation
      5 pCi/L Ridgefield, WA 21-50 Years —

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

      Radon FAQ for Ridgefield, WA

      What is the average radon level in Ridgefield, WA?
      Based on 1 user-submitted test, the average radon level in Ridgefield is 5.00 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 Ridgefield in?
      Ridgefield and the 98642 zip code are in Clark 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 Ridgefield?
      Radon mitigation in Ridgefield 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 Ridgefield?
      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 Washington

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

      CityAvg User Radon LevelSubmissions
      Vancouver 6.56 pCi/L 9
      Kent 3.50 pCi/L 6
      Olympia 7.00 pCi/L 5
      Seattle 5.25 pCi/L 4
      Bellevue 3.75 pCi/L 4
      Spokane 11.67 pCi/L 3
      Camas 8.00 pCi/L 3
      Centralia 7.00 pCi/L 3
      Bellingham 4.50 pCi/L 2
      Kirkland 4.50 pCi/L 2

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      Free Radon Mitigation Quote

      Or call for a free quote: 1-800-299-3578 Local: 360-831-0481

      A licensed contractor will contact you immediately.

      * Required