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Kewaskum, WI Radon Levels

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


Kewaskum, WI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Washington County, WI
Zip Code 53040
Avg. User Level 8.00 pCi/L
User Tests 1

This Washington County community in the Milwaukee metropolitan area has recorded radon levels averaging 8.0 pCi/L, significantly exceeding the EPA action threshold. Washington County's glacial geology and the prevalence of homes with full basements create conditions where radon can accumulate readily. Residents should prioritize professional radon testing and implement mitigation systems when readings exceed safe levels.

8.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Kewaskum, WI Radon Mitigation

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

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Kewaskum, WI Radon Levels

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

Radon LevelCityHome AgeFoundation
8 pCi/L Kewaskum, WI 21-50 Years Full Basement

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

Radon Readings Near Kewaskum, WI

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

CityDistanceAvg User LevelReadings
West Bend 6.1 mi 8.00 pCi/L 1
Slinger 13.8 mi 20.00 pCi/L 1
Cedarburg 17.8 mi 6.00 pCi/L 1
Grafton 18.3 mi 17.00 pCi/L 1
Plymouth 19.2 mi 6.00 pCi/L 1
Mequon 21.2 mi 6.00 pCi/L 1
Thiensville 22.3 mi 5.00 pCi/L 1
Fond Du Lac 23.7 mi 5.00 pCi/L 1

Washington County Radon Profile

Because of its underlying geology, Washington County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Washington County average 12.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Washington County home regardless of zone or a neighbor's results.

Radon FAQ for Kewaskum, WI

What is the average radon level in Kewaskum, WI?
Based on 1 user-submitted test, the average radon level in Kewaskum 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 Kewaskum in?
Kewaskum and the 53040 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 Kewaskum?
Radon mitigation in Kewaskum 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 Kewaskum?
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.