Listed for: Testing
Verified:Illinois state license
Radon testers with an address in Williams Bay, with the licenses on file for each.
Williams Bay, WI at a glance
Businesses listed
1
By each business's listed address
Listed for testing
1
100% of listings
A business can be listed for both
State license on file
1
100% of listings
As each issuer's own record shows it
Share at 4+ pCi/L
37.9%
2.2 pts above WI
Walworth, 35th of 69 in WI, 2023
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
Walworth County, where Williams Bay is
No business licensed by Wisconsin is listed here yet.
These businesses have an address in Wisconsin, and another state's registry lists them. That does not mean Wisconsin licenses them: check with Wisconsin's radon program before hiring one for work here.
1 professional located in Williams Bay, Wisconsin and listed by another state.
Listed for: Testing
Verified:Illinois state license
Read a result for Williams Bay
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.8 pCi/L
Between 2 and 4 pCi/L
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Walworth County's median reported result, 2023.
Williams Bay lies in Walworth County, where 37.9% of 340 radon tests reported to CDC (2023) were at or above 4 pCi/L, 2.2 points above Wisconsin pooled (35.7%), 35th of 69 Wisconsin counties with 30 or more tests.
Shares of tests people chose to run and report, by county (2023); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.
Around Walworth County, where Williams Bay lies, the nearest Wisconsin counties with a CDC figure for 2023 run from 20.2% to 49.9% of tests at or above 4 pCi/L; the closest, Racine County, is 25 miles away at 37.3%.
Listings come from state licensing registries.
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No business licensed by Wisconsin is listed here yet.
These businesses have an address in Wisconsin, and another state's registry lists them. That does not mean Wisconsin licenses them: check with Wisconsin's radon program before hiring one for work here.
1 professional located in Williams Bay, Wisconsin and listed by another state.
Listed for: Testing
Verified:Illinois state license