Mountain town Franconia in Grafton County recorded an alarming average radon level of 20.0 pCi/L, five times the EPA action threshold. Nestled in New Hampshire's White Mountains, the community sits on granite bedrock and glacial deposits that strongly favor radon production. Residents in 03580 should immediately prioritize radon testing and professional mitigation given these exceptionally high readings.
20.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in Franconia, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Franconia, NH Radon Mitigation
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User-submitted radon test readings from homes in the Franconia area.
Radon Level
City
Home Age
Foundation
20 pCi/L
Franconia, NH
0-20 Years
Partial Basement
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Radon FAQ for Franconia, NH
What is the average radon level in Franconia, NH?
Based on 1 user-submitted test, the average radon level in Franconia is 20.00 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 Franconia in?
Franconia and the 03580 zip code are in Grafton County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Franconia?
Radon mitigation in Franconia 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 Franconia?
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.
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