Boscobel, WI Radon Levels

Q: What EPA Radon Zone is Boscobel in?

Boscobel is in Grant County, EPA Zone 1.

Q: How much does radon mitigation cost in Boscobel?

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

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

Boscobel, WI Radon Facts

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

County Grant County, WI

Zip Code 53805

Situated along the Wisconsin River in Grant County, Boscobel rests on Prairie du Chien dolomite formations that are known radon sources throughout southwestern Wisconsin. Though specific testing data is limited for this historic river town, the geological conditions suggest residents should prioritize radon testing. Many homes here feature full basements typical of Wisconsin construction, providing enclosed spaces where radon can concentrate.

17.00

pCi/L area average

Above EPA Action Level

Grant County average: 17.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Boscobel 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+

Boscobel, 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 Boscobel, WI

No homeowner tests have been submitted for Boscobel 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
Blue River	9.0 mi	6.00 pCi/L	1
Prairie Du Chien	21.9 mi	10.00 pCi/L	2
Viroqua	29.5 mi	5.00 pCi/L	1
Potosi	31.2 mi	17.00 pCi/L	1
Spring Green	32.4 mi	4.00 pCi/L	1
Westby	37.2 mi	5.00 pCi/L	1
Ridgeway	37.3 mi	8.00 pCi/L	1
La Valle	41.6 mi	9.00 pCi/L	2

Grant County Radon Profile

Because of its underlying geology, Grant 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 1 city in Grant County average 17.00 pCi/L across 1 test — 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 Grant County home regardless of zone or a neighbor's results.

Radon FAQ for Boscobel, WI

What EPA Radon Zone is Boscobel in?

Boscobel and the 53805 zip code are in Grant 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 Boscobel?

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

Radon mitigation in Boscobel 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 Boscobel?

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.