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Irwin, PA Radon Levels

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


Irwin, PA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Westmoreland County, PA
Zip Code 15642
Avg. User Level 10.00 pCi/L
User Tests 1

Located in Westmoreland County within the Pittsburgh Metro area, Irwin shows concerning radon levels with an average of 10.0 pCi/L from available testing data — significantly exceeding the EPA's 4.0 pCi/L action level. The area's Pennsylvanian-age coal measures and limestone bedrock contribute to high radon potential across southwestern Pennsylvania's river valleys. Residents in the 15642 area should prioritize radon testing and mitigation, as the single recorded test indicates serious health risks that require immediate attention.

10.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Irwin, PA Radon Mitigation

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Irwin, PA Radon Levels

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

Radon LevelCityHome AgeFoundation
10 pCi/L Irwin, PA 21-50 Years Full Basement

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

Radon Readings Near Irwin, PA

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

CityDistanceAvg User LevelReadings
Jeannette 5.6 mi 5.00 pCi/L 1
Mckeesport 7.8 mi 7.00 pCi/L 1
West Newton 8.0 mi 6.00 pCi/L 1
Murrysville 9.0 mi 5.00 pCi/L 1
Export 9.3 mi 7.50 pCi/L 2
Greensburg 9.4 mi 6.50 pCi/L 2
West Mifflin 13.1 mi 9.00 pCi/L 1
Verona 13.4 mi 12.00 pCi/L 1

Westmoreland County Radon Profile

The bedrock and soils beneath Westmoreland 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 8 cities in Westmoreland County average 7.50 pCi/L across 10 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 Westmoreland County.

Radon FAQ for Irwin, PA

What is the average radon level in Irwin, PA?
Based on 1 user-submitted test, the average radon level in Irwin is 10.00 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 Irwin in?
Irwin and the 15642 zip code are in Westmoreland 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 Irwin?
Radon mitigation in Irwin 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 Irwin?
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.