Listed for: Mitigation
Verified:West Virginia state license
Radon mitigation companies with an address in Williamsport, with the licenses on file for each.
Williamsport, MD at a glance
Businesses listed
2
By each business's listed address
Listed for mitigation
1
50% of listings
1 laboratory listed as well
State license on file
2
100% of listings
As each issuer's own record shows it
Share at 4+ pCi/L
56.0%
32.1 pts above MD
Washington, 1st of 19 in MD, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
Washington County, where Williamsport is
No business licensed by Maryland is listed here yet.
These businesses have an address in Maryland, and another state's registry lists them. That does not mean Maryland licenses them: check with Maryland's radon program before hiring one for work here.
2 professionals located in Williamsport, Maryland and listed by another state.
On this page: 1 mitigation, 1 testing
Listed for: Mitigation
Verified:West Virginia state license
Listed for: Laboratory
Verified:West Virginia state license
Read a result for Williamsport
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 5.2 pCi/L
At or above 4 pCi/L
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. Washington County's median reported result, 2008 to 2017.
Williamsport lies in Washington County, where 56.0% of 1,259 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 32.1 points above Maryland pooled (23.9%), 1st of 19 Maryland counties with 30 or more tests.
Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.
Around Washington County, where Williamsport lies, the nearest Maryland counties with a CDC figure for 2008 to 2017, laboratory run from 18.0% to 41.9% of tests at or above 4 pCi/L; the closest, Frederick County, is 24 miles away at 28.1%.
Listings come from state licensing registries.
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No business licensed by Maryland is listed here yet.
These businesses have an address in Maryland, and another state's registry lists them. That does not mean Maryland licenses them: check with Maryland's radon program before hiring one for work here.
2 professionals located in Williamsport, Maryland and listed by another state.
On this page: 1 mitigation, 1 testing
Listed for: Mitigation
Verified:West Virginia state license
Listed for: Laboratory
Verified:West Virginia state license