This lakeside Belknap County community shows an average radon reading of 4.0 pCi/L based on initial testing data. While this level meets the EPA action threshold exactly, continued testing is recommended for homes in the 03810 zip code given New Hampshire's typically elevated radon potential.
4.00
pCi/L average
Above EPA Action Level
Based on 1 user-submitted radon test for homes in Alton Bay, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Alton Bay, NH Radon Mitigation
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User-submitted radon test readings from homes in the Alton Bay area.
Radon Level
City
Home Age
Foundation
4 pCi/L
Alton Bay, NH
—
Full Basement
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Radon FAQ for Alton Bay, NH
What is the average radon level in Alton Bay, NH?
Based on 1 user-submitted test, the average radon level in Alton Bay is 4.00 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 Alton Bay in?
Alton Bay and the 03810 zip code are in Belknap 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 Alton Bay?
Radon mitigation in Alton Bay 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 Alton Bay?
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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