Shell Lake, WI Radon Levels

Q: What EPA Radon Zone is Shell Lake in?

Shell Lake is in Washburn County, EPA Zone 2.

Q: How much does radon mitigation cost in Shell Lake?

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

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

Shell Lake, WI Radon Facts

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

County Washburn County, WI

Zip Code 54871

Northwestern Wisconsin's Shell Lake in Washburn County sits on glacial lake deposits that characterize this EPA Zone 2 region's moderate radon potential. With testing data currently unavailable for zip code 54871, residents should conduct individual home assessments given the area's geological setting. Local housing includes both seasonal lakefront properties and year-round homes, many featuring full basements typical of northern Wisconsin construction.

5.25

pCi/L area average

Above EPA Action Level

Washburn County average: 5.25 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Shell Lake 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+

Shell Lake, 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 Shell Lake, WI

No homeowner tests have been submitted for Shell Lake 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
Spooner	7.0 mi	6.00 pCi/L	2
Sarona	10.1 mi	4.00 pCi/L	1
Rice Lake	20.2 mi	6.50 pCi/L	2
Almena	23.2 mi	2.00 pCi/L	1
Minong	24.8 mi	5.00 pCi/L	1
Chetek	33.6 mi	5.00 pCi/L	1
Weyerhaeuser	34.2 mi	11.50 pCi/L	2
Amery	35.2 mi	3.00 pCi/L	1

Washburn County Radon Profile

EPA mapping assigns Washburn 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 Washburn County average 5.25 pCi/L across 4 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 Washburn County home regardless of zone or a neighbor's results.

Radon FAQ for Shell Lake, WI

What EPA Radon Zone is Shell Lake in?

Shell Lake and the 54871 zip code are in Washburn 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 Shell Lake?

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

Radon mitigation in Shell 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 Shell 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.