Groton, MA Radon Levels

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

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

Q: What EPA Radon Zone is Groton in?

Groton is in Middlesex County, EPA Zone 1.

Q: How much does radon mitigation cost in Groton?

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

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

Groton, MA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Middlesex County, MA

Zip Code 01450

Avg. User Level 5.00 pCi/L

User Tests 1

Historic Groton is located in Middlesex County within the Boston Metro area, where New England's granite bedrock and glacial deposits create geologic conditions conducive to radon production. Current testing data reveals an average radon level of 5.0 pCi/L, which exceeds the EPA's 4.0 pCi/L action level and indicates residents should strongly consider radon mitigation measures. The town's colonial-era homes and newer developments in zip code 01450 often feature full basements where radon can accumulate to concerning concentrations.

5.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Groton, MA Radon Mitigation

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Groton, MA Radon Levels

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

Radon Level	City	Home Age	Foundation
5 pCi/L	Groton, MA	21-50 Years	Full Basement

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

Radon Readings Near Groton, MA

Compare radon levels in Groton with the closest nearby cities that have user-submitted test data.

City	Distance	Avg User Level	Readings
Pepperell	4.3 mi	7.00 pCi/L	3
Shirley	5.3 mi	1.00 pCi/L	1
Littleton	6.2 mi	9.40 pCi/L	5
Westford	6.3 mi	12.67 pCi/L	3
Harvard	7.9 mi	12.00 pCi/L	1
Tyngsboro	8.3 mi	4.50 pCi/L	2
Chelmsford	10.4 mi	11.50 pCi/L	4
Acton	11.0 mi	20.00 pCi/L	1

Middlesex County Radon Profile

The bedrock and soils beneath Middlesex County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 46 cities in Middlesex County average 7.28 pCi/L across 90 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Middlesex County.

Radon FAQ for Groton, MA

What is the average radon level in Groton, MA?

Based on 1 user-submitted test, the average radon level in Groton 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 Groton in?

Groton and the 01450 zip code are in Middlesex 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 Groton?

Radon mitigation in Groton 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 Groton?

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.

Groton, MA Radon Levels

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

Groton, MA Radon Facts

Groton, MA Radon Mitigation

Need Radon Mitigation or Testing in Groton?

Groton, MA Radon Levels

Radon Readings Near Groton, MA

Middlesex County Radon Profile

Radon FAQ for Groton, MA

Nearby Cities

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