Tarrs, PA Radon Levels

Q: What EPA Radon Zone is Tarrs in?

Tarrs is in Westmoreland County, EPA Zone 1.

Q: Why are radon readings shown from areas near Tarrs?

No homeowner radon tests have been submitted for Tarrs yet, so readings from the closest cities and the Westmoreland County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Tarrs?

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

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

Tarrs, PA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Westmoreland County, PA

Zip Code 15688

Located in Westmoreland County within the Pittsburgh Metro area, Tarrs sits on Appalachian bedrock formations known for elevated radon potential throughout southwestern Pennsylvania. The 15688 zip code area lies in EPA Zone 1, indicating high radon risk across the region's shale and coal-bearing formations. Despite limited local testing data, the geological conditions and prevalence of homes with full basements make radon testing essential for all residents.

7.50

pCi/L area average

Above EPA Action Level

Westmoreland County average: 7.50 pCi/L, based on 10 user-submitted tests across 8 cities in the county. No homeowner readings have been submitted for Tarrs 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+

Tarrs, PA 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 Tarrs, PA

No homeowner tests have been submitted for Tarrs yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Mount Pleasant	3.8 mi	7.00 pCi/L	1
West Newton	9.5 mi	6.00 pCi/L	1
Greensburg	9.8 mi	6.50 pCi/L	2
Jeannette	11.2 mi	5.00 pCi/L	1
Irwin	12.6 mi	10.00 pCi/L	1
Export	17.8 mi	7.50 pCi/L	2
Mckeesport	19.2 mi	7.00 pCi/L	1
Murrysville	19.9 mi	5.00 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 Tarrs, PA

What EPA Radon Zone is Tarrs in?

Tarrs and the 15688 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.

Why are radon readings shown from areas near Tarrs?

No homeowner radon tests have been submitted for Tarrs yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Westmoreland County average—are the best available indicator of local conditions until Tarrs 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 Tarrs?

Radon mitigation in Tarrs 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 Tarrs?

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.