Nashotah, WI Radon Levels

Q: What EPA Radon Zone is Nashotah in?

Nashotah is in Waukesha County, EPA Zone 1.

Q: How much does radon mitigation cost in Nashotah?

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

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

Nashotah, WI Radon Facts

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

County Waukesha County, WI

Zip Code 53058

This lake community in Waukesha County sits within the Milwaukee metro area, where glacial deposits over Paleozoic bedrock can create variable radon conditions from property to property. While specific testing data for Nashotah remains limited, the regional geology and prevalence of full basement construction suggest potential for elevated readings. Homeowners in zip code 53058 should prioritize radon testing, especially in lakefront properties with walkout basements.

6.80

pCi/L area average

Above EPA Action Level

Waukesha County average: 6.80 pCi/L, based on 5 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Nashotah 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+

Nashotah, WI 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 Nashotah, WI

No homeowner tests have been submitted for Nashotah 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
Pewaukee	7.2 mi	10.00 pCi/L	1
Waukesha	11.3 mi	5.50 pCi/L	2
Menomonee Falls	15.3 mi	6.50 pCi/L	2
Slinger	16.5 mi	20.00 pCi/L	1
Watertown	17.7 mi	7.00 pCi/L	1
Mequon	22.4 mi	6.00 pCi/L	1
Milwaukee	22.6 mi	10.00 pCi/L	3
Thiensville	23.1 mi	5.00 pCi/L	1

Waukesha County Radon Profile

Waukesha County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 4 cities in Waukesha County average 6.80 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Waukesha County to test, as levels can differ between neighboring homes.

Radon FAQ for Nashotah, WI

What EPA Radon Zone is Nashotah in?

Nashotah and the 53058 zip code are in Waukesha 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 Nashotah?

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

Radon mitigation in Nashotah 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 Nashotah?

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.