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Grass Lake, MI Radon Levels

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


Grass Lake, MI Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Jackson County, MI
Zip Code 49240
Avg. User Level 6.00 pCi/L
User Tests 1

Located in Jackson County within both the Ann Arbor and Jackson Metro areas, Grass Lake's zip code 49240 has recorded an average radon level of 6.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Built on glacial till deposits over limestone bedrock characteristic of southern Michigan, the community's housing includes many homes with full basements where radon can accumulate. Given this elevated reading, all area homeowners should test their properties and consider mitigation if levels exceed EPA guidelines.

6.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Grass 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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Grass Lake, MI Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L GRASS LAKE, MI 0-20 Years Full Basement

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

Radon Readings Near Grass Lake, MI

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

CityDistanceAvg User LevelReadings
Munith 7.4 mi 3.00 pCi/L 1
Jackson 10.8 mi 7.00 pCi/L 1
Pleasant Lake 11.2 mi 13.00 pCi/L 1
Rives Junction 15.8 mi 5.00 pCi/L 1
Dexter 16.2 mi 4.00 pCi/L 1
Onsted 16.7 mi 6.00 pCi/L 2
Tipton 17.3 mi 4.00 pCi/L 1
Spring Arbor 18.7 mi 20.00 pCi/L 1

Jackson County Radon Profile

The bedrock and soils beneath Jackson County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 7 cities in Jackson County average 8.43 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Jackson County.

Radon FAQ for Grass Lake, MI

What is the average radon level in Grass Lake, MI?
Based on 1 user-submitted test, the average radon level in Grass Lake is 6.00 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 Grass Lake in?
Grass Lake and the 49240 zip code are in Jackson 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 Grass Lake?
Radon mitigation in Grass 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 Grass 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.