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Westerly, RI Radon Levels

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


Westerly, RI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Washington County, RI
Zip Code 02891
Avg. User Level 8.00 pCi/L
User Tests 2

Positioned in Washington County within the Providence Metro area, Westerly sits on crystalline bedrock formations typical of southern Rhode Island's coastal region. Testing data shows an average radon level of 8.0 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold and indicating that homes in the 02891 area should implement radon mitigation measures.

8.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Westerly, RI Radon Mitigation

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

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Westerly, RI Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L Westerly, RI 21-50 Years Full Basement
10 pCi/L Westerly, RI 0-20 Years Full Basement

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

Radon FAQ for Westerly, RI

What is the average radon level in Westerly, RI?
Based on 2 user-submitted tests, the average radon level in Westerly is 8.00 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 Westerly in?
Westerly and the 02891 zip code are in Washington 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 Westerly?
Radon mitigation in Westerly 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 Westerly?
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 Rhode Island

Cities in Rhode Island with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Providence 11.00 pCi/L 2
Westerly 8.00 pCi/L 2
Portsmouth 4.50 pCi/L 2