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Jefferson, ME Radon Levels

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


Jefferson, ME Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Lincoln County, ME
Zip Code 04348
Avg. User Level 5.50 pCi/L
User Tests 2

Situated in coastal Lincoln County, Jefferson sits on Maine's complex geology of granite and metamorphic rocks that can produce variable radon levels. Testing data shows an average radon level of 5.5 pCi/L, exceeding the EPA action level of 4.0 pCi/L. The community's older housing stock, including many homes with fieldstone basements, creates conditions where radon can accumulate to concerning levels.

5.50
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Jefferson, ME Radon Mitigation

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Jefferson, ME Radon Levels

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

Radon LevelCityHome AgeFoundation
2 pCi/L Jefferson, ME 21-50 Years Full Basement
9 pCi/L Jefferson, ME 21-50 Years Full Basement

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

Radon FAQ for Jefferson, ME

What is the average radon level in Jefferson, ME?
Based on 2 user-submitted tests, the average radon level in Jefferson is 5.50 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 Jefferson in?
Jefferson and the 04348 zip code are in Lincoln 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 Jefferson?
Radon mitigation in Jefferson 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 Jefferson?
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