Holland, MA Radon Levels

Q: What EPA Radon Zone is Holland in?

Holland is in Hampden County, EPA Zone 2.

Q: How much does radon mitigation cost in Holland?

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

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

Holland, MA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Hampden County, MA

Zip Code 01521

Nestled in Hampden County within the Springfield Metro area, Holland sits on New England's glacially-carved landscape where granite bedrock and glacial till create varying radon conditions. With limited testing data currently available for zip code 01521, homeowners in this historic Massachusetts community should conduct radon testing to establish baseline levels. The area's mix of colonial-era homes and newer construction means foundation types vary significantly, making individual testing essential for peace of mind.

7.10

pCi/L area average

Above EPA Action Level

Hampden County average: 7.10 pCi/L, based on 10 user-submitted tests across 7 cities in the county. No homeowner readings have been submitted for Holland itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Holland, MA Radon Mitigation

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

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Radon Readings Near Holland, MA

No homeowner tests have been submitted for Holland yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
4 pCi/L	Southbridge, MA	6.6 mi	100+ Years	—	Jun 2025
2 pCi/L	Monson, MA	9.5 mi	21-50 Years	Full Basement	Jan 2025
4 pCi/L	Monson, MA	9.5 mi	21-50 Years	Full Basement	Nov 2024
13 pCi/L	Charlton, MA	11.8 mi	21-50 Years	Full Basement	Sep 2020
20 pCi/L	Palmer, MA	13.0 mi	0-20 Years	Full Basement	Feb 2024
7 pCi/L	Webster, MA	15.7 mi	21-50 Years	Full Basement	Sep 2018
6 pCi/L	Webster, MA	15.7 mi	0-20 Years	Full Basement	Jun 2018
9 pCi/L	Leicester, MA	18.2 mi	51-99 Years	Full Basement	May 2019

Readings are drawn from the nearest cities with submitted data. Have a result for Holland? Submit your reading to help your neighbors.

Hampden County Radon Profile

The soils and bedrock of Hampden County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 7 cities in Hampden County average 7.10 pCi/L across 10 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Hampden County to test, as levels can differ between neighboring homes.

Radon FAQ for Holland, MA

What EPA Radon Zone is Holland in?

Holland and the 01521 zip code are in Hampden 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.

Why are radon readings shown from areas near Holland?

No homeowner radon tests have been submitted for Holland yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Hampden County average—are the best available indicator of local conditions until Holland homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Holland?

Radon mitigation in Holland 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 Holland?

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.

Radon Levels Near Holland, MA

User-submitted radon levels from the cities closest to Holland with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Southbridge	6.6 mi	4.00 pCi/L	1
Monson	9.5 mi	3.00 pCi/L	2
Charlton	11.8 mi	13.00 pCi/L	1
Palmer	13.0 mi	20.00 pCi/L	1
Webster	15.7 mi	6.50 pCi/L	2
Leicester	18.2 mi	9.00 pCi/L	1
Ludlow	18.6 mi	6.00 pCi/L	1
Auburn	19.8 mi	7.00 pCi/L	1