Hatley, WI Radon Levels

Q: What EPA Radon Zone is Hatley in?

Hatley is in Marathon County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Hatley yet, so readings from the closest cities and the Marathon 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 Hatley?

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

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

Hatley, WI Radon Facts

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

County Marathon County, WI

Zip Code 54440

This small Marathon County community in central Wisconsin sits in EPA Zone 1, reflecting high radon potential from the region's glacial deposits over crystalline bedrock. While specific testing data for Hatley remains limited, the geological conditions throughout central Wisconsin frequently produce elevated indoor radon levels. Homeowners should test their properties, as Wisconsin's geology often yields readings above the EPA action level.

9.50

pCi/L area average

Above EPA Action Level

Marathon County average: 9.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Hatley 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+

Hatley, 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 Hatley, WI

No homeowner tests have been submitted for Hatley 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
Wittenberg	10.4 mi	11.00 pCi/L	1
Mosinee	15.1 mi	6.00 pCi/L	1
Stevens Point	21.3 mi	6.00 pCi/L	3
Antigo	24.1 mi	19.00 pCi/L	1
Gresham	28.9 mi	9.00 pCi/L	1
Deerbrook	29.9 mi	8.00 pCi/L	1
Stratford	33.5 mi	13.00 pCi/L	1
Gleason	35.7 mi	4.00 pCi/L	2

Marathon County Radon Profile

Because of its underlying geology, Marathon 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 2 cities in Marathon County average 9.50 pCi/L across 2 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 Marathon County home regardless of zone or a neighbor's results.

Radon FAQ for Hatley, WI

What EPA Radon Zone is Hatley in?

Hatley and the 54440 zip code are in Marathon 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 Hatley?

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

Radon mitigation in Hatley 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 Hatley?

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.