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Coloma, WI Radon Levels

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


Coloma, WI Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Waushara County, WI
Zip Code 54930
Avg. User Level 17.00 pCi/L
User Tests 1

Located in Waushara County in central Wisconsin, Coloma shows significantly elevated radon levels with an average reading of 17.0 pCi/L, well above the EPA action threshold. The area's glacial sand and gravel deposits over crystalline bedrock create highly favorable conditions for radon gas migration and accumulation. Homeowners in zip code 54930 should immediately prioritize professional radon testing and mitigation system installation.

17.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Coloma, WI. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Coloma, WI Radon Mitigation

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

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Coloma, WI Radon Levels

User-submitted radon test readings from homes in the Coloma area.

Radon LevelCityHome AgeFoundation
17 pCi/L Coloma, WI 0-20 Years Full Basement

Have a radon test result for Coloma? Submit your reading to help other homeowners.

Radon Readings Near Coloma, WI

Compare radon levels in Coloma with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Hancock 7.3 mi 5.00 pCi/L 1
Wautoma 11.6 mi 15.00 pCi/L 1
Friendship 16.1 mi 20.00 pCi/L 1
Nekoosa 26.0 mi 6.00 pCi/L 1
Necedah 28.1 mi 7.50 pCi/L 2
Green Lake 29.1 mi 6.00 pCi/L 1
Wisconsin Rapids 30.6 mi 4.50 pCi/L 2
Portage 33.0 mi 9.00 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 Coloma, WI

What is the average radon level in Coloma, WI?
Based on 1 user-submitted test, the average radon level in Coloma is 17.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Coloma in?
Coloma and the 54930 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.
How much does radon mitigation cost in Coloma?
Radon mitigation in Coloma 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 Coloma?
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.