Brillion, WI Radon Levels

Q: What EPA Radon Zone is Brillion in?

Brillion is in Calumet County, EPA Zone 2.

Q: How much does radon mitigation cost in Brillion?

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

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

Brillion, WI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Calumet County, WI

Zip Code 54110

Situated in Calumet County within both the Appleton and Green Bay metro areas, Brillion sits in zip code 54110 where glacial deposits over dolomite bedrock create moderate radon potential. The community's EPA Zone 2 designation reflects Wisconsin's complex glacial geology that can produce variable radon levels across relatively small areas. Although local testing data remains limited, Brillion residents should conduct radon testing to understand their individual exposure risk.

7.00

pCi/L area average

Above EPA Action Level

Calumet County average: 7.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Brillion 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+

Brillion, 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 Brillion?

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

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

Radon Readings Near Brillion, WI

No homeowner tests have been submitted for Brillion 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
New Holstein	16.1 mi	7.00 pCi/L	1
Green Bay	23.3 mi	4.00 pCi/L	1
Greenville	24.0 mi	7.00 pCi/L	1
Oshkosh	26.1 mi	19.00 pCi/L	1
Plymouth	29.8 mi	6.00 pCi/L	1
Sheboygan	32.3 mi	5.00 pCi/L	1
Pulaski	34.5 mi	4.00 pCi/L	1
Fond Du Lac	35.6 mi	5.00 pCi/L	1

Calumet County Radon Profile

Calumet County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 1 city in Calumet County average 7.00 pCi/L across 1 test — 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 Calumet County.

Radon FAQ for Brillion, WI

What EPA Radon Zone is Brillion in?

Brillion and the 54110 zip code are in Calumet 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.

Why are radon readings shown from areas near Brillion?

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

Radon mitigation in Brillion 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 Brillion?

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.