Plainfield, WI Radon Levels

Q: What EPA Radon Zone is Plainfield in?

Plainfield is in Waushara County, EPA Zone 2.

Q: How much does radon mitigation cost in Plainfield?

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

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

Plainfield, WI Radon Facts

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

County Waushara County, WI

Zip Code 54966

Found in Waushara County in central Wisconsin, Plainfield (54966) sits over glacial deposits and sandstone bedrock that can influence radon gas migration. Current testing data for this rural community remains limited, providing little insight into local radon conditions. Wisconsin's diverse geological landscape makes individual home testing important, especially for properties with the basement foundations common throughout the region.

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 Plainfield 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+

Plainfield, 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 Plainfield, WI

No homeowner tests have been submitted for Plainfield 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
Hancock	6.7 mi	5.00 pCi/L	1
Coloma	12.7 mi	17.00 pCi/L	1
Wautoma	13.7 mi	15.00 pCi/L	1
Nekoosa	21.7 mi	6.00 pCi/L	1
Stevens Point	23.1 mi	6.00 pCi/L	3
Friendship	23.4 mi	20.00 pCi/L	1
Wisconsin Rapids	23.5 mi	4.50 pCi/L	2
Necedah	32.3 mi	7.50 pCi/L	2

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 Plainfield, WI

What EPA Radon Zone is Plainfield in?

Plainfield and the 54966 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 Plainfield?

No homeowner radon tests have been submitted for Plainfield 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 Plainfield 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 Plainfield?

Radon mitigation in Plainfield 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 Plainfield?

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.