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Penobscot, ME Radon Levels

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


Penobscot, ME Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Hancock County, ME
Zip Code 04476
Avg. User Level 10.00 pCi/L
User Tests 2

Penobscot in Hancock County shows concerning radon readings averaging 10.0 pCi/L, well above the EPA's 4.0 pCi/L action level. This coastal Maine community sits on granite bedrock typical of the region, which contains naturally occurring uranium that can produce elevated radon concentrations. Homes in zip code 04476, especially those with basement or crawl space foundations, should implement radon mitigation systems to reduce these dangerous levels.

10.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Penobscot, ME. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Penobscot, ME Radon Mitigation

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

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Penobscot, ME Radon Levels

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

Radon LevelCityHome AgeFoundation
15 pCi/L Penobscot, ME 21-50 Years Partial Basement
5 pCi/L Penobscot, ME 21-50 Years Full Basement

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

Radon FAQ for Penobscot, ME

What is the average radon level in Penobscot, ME?
Based on 2 user-submitted tests, the average radon level in Penobscot is 10.00 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 Penobscot in?
Penobscot and the 04476 zip code are in Hancock 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 Penobscot?
Radon mitigation in Penobscot 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 Penobscot?
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 Maine

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

CityAvg User Radon LevelSubmissions
Rumford 6.00 pCi/L 4
York 8.50 pCi/L 2
Saco 7.50 pCi/L 2
Hampden 4.50 pCi/L 2
Scarborough 14.00 pCi/L 1
Kittery 12.00 pCi/L 1
South Portland 10.00 pCi/L 1
Portland 4.00 pCi/L 1