South Lyon, MI Radon Mitigation and Testing

Q: What is the average radon level in South Lyon, MI?

Based on 2 user-submitted tests, the average radon level is 15.00 pCi/L.

Q: What EPA Radon Zone is South Lyon in?

South Lyon is in Oakland County, EPA Zone 2.

Q: How much does radon mitigation cost in South Lyon?

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

Avg: 15.00 pCi/L

Oakland County

EPA Zone 2

2 user tests

South Lyon is located in Oakland County, Michigan. With 2 user-submitted readings averaging 15.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 48178 zip code.

15.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in South Lyon, MI. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

South Lyon, MI Radon Mitigation

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

South Lyon, MI Radon Testing

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

South Lyon, Michigan Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	South Lyon, MI	21-50 Years	Full Basement	Apr 2021

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

South Lyon Radon Facts

Key details about the radon risk profile for South Lyon and the 48178 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Oakland County, MI

Zip Code

48178

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

15.00 pCi/L

User Tests Submitted

South Lyon and the 48178 zip code are located in Oakland County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for South Lyon, MI

What is the average radon level in South Lyon, MI?

Based on 2 user-submitted tests, the average radon level in South Lyon is 15.00 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 South Lyon in?

South Lyon and the 48178 zip code are in Oakland County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in South Lyon?

Radon mitigation in South Lyon 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 South Lyon?

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