This Carroll County community in New Hampshire's granite bedrock region shows an average radon level of 11.5 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action level. Located in EPA Zone 1 with high radon potential, Sanbornville's geology and older New England housing stock with stone foundations create conditions conducive to radon accumulation. All residents in zip code 03872 should test their homes and consider mitigation systems where elevated levels are found.
11.50
pCi/L average
Above EPA Action Level
Based on 2 user-submitted radon tests for homes in Sanbornville, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Sanbornville, NH Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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User-submitted radon test readings from homes in the Sanbornville area.
Radon Level
City
Home Age
Foundation
15 pCi/L
Sanbornville, NH
0-20 Years
Full Basement
8 pCi/L
Sanbornville, NH
100+ Years
Full Basement
Have a radon test result for Sanbornville? Submit your reading to help other homeowners.
Radon FAQ for Sanbornville, NH
What is the average radon level in Sanbornville, NH?
Based on 2 user-submitted tests, the average radon level in Sanbornville is 11.50 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 Sanbornville in?
Sanbornville and the 03872 zip code are in Carroll 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 Sanbornville?
Radon mitigation in Sanbornville 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 Sanbornville?
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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