Belfast, ME Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Belfast in?

Belfast is in Waldo County, EPA Zone 2.

Q: How much does radon mitigation cost in Belfast?

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

Avg: 5.00 pCi/L

Waldo County

EPA Zone 2

1 user test

This coastal Waldo County community shows an average radon level of 5.0 pCi/L based on available testing data, which exceeds the EPA action threshold of 4.0 pCi/L. Belfast's location along Penobscot Bay, with its granite bedrock and many older homes featuring stone foundations, creates conditions where radon can accumulate significantly. Residents in zip code 04915 should prioritize radon testing and mitigation when levels exceed safe thresholds.

5.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Belfast, ME. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Belfast, ME Radon Mitigation

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

Belfast, ME Radon Testing

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

Belfast, Maine Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Belfast, ME	0-20 Years	Full Basement	Feb 2019

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

Belfast Radon Facts

Key details about the radon risk profile for Belfast and the 04915 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Waldo County, ME

Zip Code

04915

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

Belfast and the 04915 zip code are located in Waldo County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Belfast, ME

What is the average radon level in Belfast, ME?

Based on 1 user-submitted test, the average radon level in Belfast is 5.00 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 Belfast in?

Belfast and the 04915 zip code are in Waldo 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 Belfast?

Radon mitigation in Belfast 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 Belfast?

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