Charlton, MA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 13.00 pCi/L.

Q: What EPA Radon Zone is Charlton in?

Charlton is in Worcester County, EPA Zone 1.

Q: How much does radon mitigation cost in Charlton?

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

Avg: 13.00 pCi/L

Worcester County

EPA Zone 1

1 user test

Located in Worcester County within Massachusetts' central highlands, Charlton has recorded concerning radon levels of 13.0 pCi/L in recent testing data. This reading significantly exceeds the EPA's 4.0 pCi/L action threshold, reflecting the area's granite bedrock and glacial till soils that facilitate radon gas production and accumulation. Given these elevated levels across the Worcester Metro region, professional radon testing and likely mitigation are essential considerations for all local homeowners.

13.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Charlton, MA Radon Mitigation

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

Charlton, MA Radon Testing

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

Charlton, Massachusetts Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
13 pCi/L	Charlton, MA	21-50 Years	Full Basement	Sep 2020

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

Charlton Radon Facts

Key details about the radon risk profile for Charlton and the 01507 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Worcester County, MA

Zip Code

01507

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

13.00 pCi/L

User Tests Submitted

Charlton and the 01507 zip code are located in Worcester 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 Charlton, MA

What is the average radon level in Charlton, MA?

Based on 1 user-submitted test, the average radon level in Charlton is 13.00 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 Charlton in?

Charlton and the 01507 zip code are in Worcester 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 Charlton?

Radon mitigation in Charlton 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 Charlton?

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