South Dartmouth, MA Radon Mitigation and Testing

Q: What is the average radon level in South Dartmouth, MA?

Based on 1 user-submitted tests, the average radon level is 20.00 pCi/L.

Q: What EPA Radon Zone is South Dartmouth in?

South Dartmouth is in Bristol County, EPA Zone 2.

Q: How much does radon mitigation cost in South Dartmouth?

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

Avg: 20.00 pCi/L

Bristol County

EPA Zone 2

1 user test

South Dartmouth is located in Bristol County, Massachusetts. With 1 user-submitted readings averaging 20.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 02748 zip code.

20.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

South Dartmouth, MA Radon Mitigation

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

South Dartmouth, MA Radon Testing

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

South Dartmouth, Massachusetts Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	South Dartmouth, MA	21-50 Years	Full Basement	Feb 2025

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

South Dartmouth Radon Facts

Key details about the radon risk profile for South Dartmouth and the 02748 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Bristol County, MA

Zip Code

02748

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

20.00 pCi/L

User Tests Submitted

South Dartmouth and the 02748 zip code are located in Bristol 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 South Dartmouth, MA

What is the average radon level in South Dartmouth, MA?

Based on 1 user-submitted test, the average radon level in South Dartmouth is 20.00 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 South Dartmouth in?

South Dartmouth and the 02748 zip code are in Bristol 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 South Dartmouth?

Radon mitigation in South Dartmouth 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 South Dartmouth?

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 Massachusetts

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

City	Avg User Radon Level	Submissions
Littleton	9.40 pCi/L	5
Gloucester	8.40 pCi/L	5
Florence	7.40 pCi/L	5
Douglas	12.00 pCi/L	4
Weymouth	8.50 pCi/L	4
Mashpee	5.00 pCi/L	4
Natick	5.00 pCi/L	4
Worcester	17.67 pCi/L	3
Attleboro	10.00 pCi/L	3
Stoneham	9.67 pCi/L	3
Hopkinton	9.33 pCi/L	3
Medford	8.00 pCi/L	3
Boxford	6.67 pCi/L	3
Reading	5.67 pCi/L	3
Haverhill	5.00 pCi/L	3
Melrose	5.00 pCi/L	3
Somerville	4.33 pCi/L	3
Woburn	19.00 pCi/L	2
Marlborough	13.50 pCi/L	2
Cohasset	11.50 pCi/L	2