Dupont, WA Radon Levels
Check local Dupont radon levels and find certified testing and mitigation professionals to keep your home safe
Dupont, WA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Pierce County, WA
Zip Code
98327
Dupont in Pierce County benefits from its location in the Seattle Metro area, where Puget Sound glacial deposits and marine sediments generally produce lower radon levels. However, the diverse housing stock in zip code 98327 ranges from historic military housing to modern developments with varying foundation designs. While testing data remains limited, Washington homeowners should still test for radon as geological conditions can vary significantly even within the same neighborhood.
Dupont, WA 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 Dupont, WA
What EPA Radon Zone is Dupont in?
Dupont and the 98327 zip code are in Pierce County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Dupont?
Radon mitigation in Dupont 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 Dupont?
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.