Penobscot, ME Radon Mitigation and Testing

Q: What is the average radon level in Penobscot, ME?

Based on 2 user-submitted tests, the average radon level is 10.00 pCi/L.

Q: What EPA Radon Zone is Penobscot in?

Penobscot is in Hancock County, EPA Zone 1.

Q: How much does radon mitigation cost in Penobscot?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 10.00 pCi/L

Hancock County

EPA Zone 1

2 user tests

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.

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.

Penobscot, ME Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Penobscot, Maine Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
15 pCi/L	Penobscot, ME	21-50 Years	Partial Basement	Apr 2024
5 pCi/L	Penobscot, ME	21-50 Years	Full Basement	Dec 2020

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

Penobscot Radon Facts

Key details about the radon risk profile for Penobscot and the 04476 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hancock County, ME

Zip Code

04476

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

10.00 pCi/L

User Tests Submitted

Penobscot and the 04476 zip code are located in Hancock County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Rumford	5.67 pCi/L	3
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