Green Valley, WI Radon Levels

Q: What EPA Radon Zone is Green Valley in?

Green Valley is in Shawano County, EPA Zone 1.

Q: How much does radon mitigation cost in Green Valley?

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

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

Green Valley, WI Radon Facts

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

County Shawano County, WI

Zip Code 54127

Nestled in rural Shawano County, this small Wisconsin community sits atop glacial deposits that can influence indoor radon levels. With limited testing data available for homes in the 54127 zip code area, residents are encouraged to conduct radon testing to understand their individual property's risk. The EPA designates this region as Zone 1, indicating potential for elevated radon levels.

8.00

pCi/L area average

Above EPA Action Level

Shawano County average: 8.00 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Green Valley 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+

Green Valley, WI Radon Mitigation

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

Need Radon Mitigation or Testing in Green Valley?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Shawano County Pros

1-800-299-3578 920-569-0139 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Green Valley, WI

No homeowner tests have been submitted for Green Valley 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
Pulaski	9.4 mi	4.00 pCi/L	1
Green Bay	23.1 mi	4.00 pCi/L	1
Gresham	25.7 mi	9.00 pCi/L	1
Mountain	29.3 mi	16.00 pCi/L	1
Crivitz	33.5 mi	10.00 pCi/L	1
Greenville	36.7 mi	7.00 pCi/L	1
Townsend	39.5 mi	6.00 pCi/L	1
Algoma	41.9 mi	5.00 pCi/L	1

Shawano County Radon Profile

Because of its underlying geology, Shawano 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 3 cities in Shawano County average 8.00 pCi/L across 3 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 Shawano County home regardless of zone or a neighbor's results.

Radon FAQ for Green Valley, WI

What EPA Radon Zone is Green Valley in?

Green Valley and the 54127 zip code are in Shawano 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 Green Valley?

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

Radon mitigation in Green Valley 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 Green Valley?

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.