Merrimac, MA Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 5.50 pCi/L.

Q: What EPA Radon Zone is Merrimac in?

Merrimac is in Essex County, EPA Zone 1.

Q: How much does radon mitigation cost in Merrimac?

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

Avg: 5.50 pCi/L

Essex County

EPA Zone 1

2 user tests

Located in Essex County north of Boston, Merrimac records an average radon level of 5.5 pCi/L from 2 tests, exceeding the EPA action level in zip code 01860. The community's position over New England's glacial deposits and granite bedrock contributes to elevated readings that demand homeowner attention. Historic homes and newer construction alike in this Boston Metro area can experience radon accumulation, making testing and mitigation planning essential for resident safety.

5.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Merrimac, MA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Merrimac, MA Radon Mitigation

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

Merrimac, MA Radon Testing

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

Merrimac, Massachusetts Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Merrimac, MA	21-50 Years	Full Basement	May 2023
7 pCi/L	Merrimac, MA	100+ Years	Full Basement	Feb 2019

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

Merrimac Radon Facts

Key details about the radon risk profile for Merrimac and the 01860 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Essex County, MA

Zip Code

01860

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.50 pCi/L

User Tests Submitted

Merrimac and the 01860 zip code are located in Essex 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 Merrimac, MA

What is the average radon level in Merrimac, MA?

Based on 2 user-submitted tests, the average radon level in Merrimac is 5.50 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 Merrimac in?

Merrimac and the 01860 zip code are in Essex 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 Merrimac?

Radon mitigation in Merrimac 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 Merrimac?

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