Whitmore Lake, MI Radon Levels

Q: What EPA Radon Zone is Whitmore Lake in?

Whitmore Lake is in Washtenaw County, EPA Zone 1.

Q: How much does radon mitigation cost in Whitmore Lake?

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

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

Whitmore Lake, MI Radon Facts

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

County Washtenaw County, MI

Zip Code 48189

This Washtenaw County community in zip code 48189 lies within Michigan's glacial lake plain region, where sandy soils over limestone bedrock can create variable radon conditions. Testing data for Whitmore Lake is currently limited, making individual home testing essential for residents to understand their specific radon exposure risk.

6.29

pCi/L area average

Above EPA Action Level

Washtenaw County average: 6.29 pCi/L, based on 7 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Whitmore Lake 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+

Whitmore Lake, MI 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 Whitmore Lake, MI

No homeowner tests have been submitted for Whitmore Lake 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
South Lyon	6.6 mi	15.00 pCi/L	2
Pinckney	6.8 mi	7.33 pCi/L	3
Dexter	7.7 mi	4.00 pCi/L	1
Brighton	8.7 mi	6.00 pCi/L	3
Ann Arbor	11.1 mi	5.00 pCi/L	1
Milford	13.8 mi	4.33 pCi/L	3
Wixom	14.9 mi	13.00 pCi/L	2
Northville	15.0 mi	5.33 pCi/L	3

Washtenaw County Radon Profile

Because of its underlying geology, Washtenaw 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 4 cities in Washtenaw County average 6.29 pCi/L across 7 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 Washtenaw County home regardless of zone or a neighbor's results.

Radon FAQ for Whitmore Lake, MI

What EPA Radon Zone is Whitmore Lake in?

Whitmore Lake and the 48189 zip code are in Washtenaw 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 Whitmore Lake?

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

Radon mitigation in Whitmore Lake 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 Whitmore Lake?

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.