Williamsburg, MI Radon Mitigation and Testing

Q: What EPA Radon Zone is Williamsburg in?

Williamsburg is in Grand Traverse County, EPA Zone 3.

Q: How much does radon mitigation cost in Williamsburg?

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

Grand Traverse County

EPA Zone 3

Located in Grand Traverse County within the Traverse City Metro area, Williamsburg sits in EPA Zone 3 where glacial deposits and Great Lakes influence create generally lower radon potential. Testing submissions for this 49690 community remain limited, emphasizing the value of individual property assessment. Despite the zone designation, Michigan's varied glacial geology means radon levels can differ between homes, particularly those with different foundation types or construction eras.

Williamsburg, MI Radon Mitigation

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

Williamsburg, MI Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Williamsburg Radon Facts

Key details about the radon risk profile for Williamsburg and the 49690 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Grand Traverse County, MI

Zip Code

49690

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Williamsburg and the 49690 zip code are located in Grand Traverse County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Williamsburg, MI

What EPA Radon Zone is Williamsburg in?

Williamsburg and the 49690 zip code are in Grand Traverse County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Williamsburg?

Radon mitigation in Williamsburg 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 Williamsburg?

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.

Most Active Radon Markets in Michigan

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Novi	5.00 pCi/L	7
Rochester	9.00 pCi/L	5
Battle Creek	6.60 pCi/L	5
White Lake	10.00 pCi/L	4
Ypsilanti	8.50 pCi/L	4
Waterford	7.75 pCi/L	4
Howell	7.50 pCi/L	4
Gaylord	6.00 pCi/L	4
Gladstone	5.25 pCi/L	4
West Bloomfield	5.25 pCi/L	4
Clarkston	5.00 pCi/L	4
Flint	9.00 pCi/L	3
Pinckney	7.33 pCi/L	3
Northville	5.33 pCi/L	3
Milford	4.33 pCi/L	3
Plymouth	4.33 pCi/L	3
Portage	3.33 pCi/L	3
Lake Orion	11.00 pCi/L	2
Oxford	11.00 pCi/L	2
Grand Ledge	7.00 pCi/L	2