Berlin, WI Radon Levels

Q: What EPA Radon Zone is Berlin in?

Berlin is in Waushara County, EPA Zone 2.

Q: Why are radon readings shown from areas near Berlin?

No homeowner radon tests have been submitted for Berlin yet, so readings from the closest cities and the Waushara County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Berlin?

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

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

Berlin, WI Radon Facts

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

County Waushara County, WI

Zip Code 54923

Berlin in Waushara County sits on glacial outwash deposits over crystalline bedrock in central Wisconsin, where sandy soils can facilitate radon gas movement into homes. The community's housing stock includes both historic downtown buildings and suburban development, with many properties featuring full basements common to Wisconsin construction. Without comprehensive local testing data, homeowners should consider radon measurements to establish individual property baselines.

12.33

pCi/L area average

Above EPA Action Level

Waushara County average: 12.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Berlin 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+

Berlin, WI Radon Mitigation

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

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Radon Readings Near Berlin, WI

No homeowner tests have been submitted for Berlin 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
Green Lake	9.2 mi	6.00 pCi/L	1
Wautoma	16.9 mi	15.00 pCi/L	1
Oshkosh	19.6 mi	19.00 pCi/L	1
Fond Du Lac	25.7 mi	5.00 pCi/L	1
Coloma	27.3 mi	17.00 pCi/L	1
Greenville	30.3 mi	7.00 pCi/L	1
Hancock	30.9 mi	5.00 pCi/L	1
Pardeeville	35.9 mi	4.00 pCi/L	1

Waushara County Radon Profile

EPA mapping assigns Waushara County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 3 cities in Waushara County average 12.33 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 Waushara County home regardless of zone or a neighbor's results.

Radon FAQ for Berlin, WI

What EPA Radon Zone is Berlin in?

Berlin and the 54923 zip code are in Waushara 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 Berlin?

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

Radon mitigation in Berlin 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 Berlin?

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.