Combined Locks, WI Radon Levels

Q: What EPA Radon Zone is Combined Locks in?

Combined Locks is in Outagamie County, EPA Zone 2.

Q: How much does radon mitigation cost in Combined Locks?

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

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

Combined Locks, WI Radon Facts

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

County Outagamie County, WI

Zip Code 54113

Located in Outagamie County as part of the Appleton Metro area, Combined Locks sits in Wisconsin's glacially-influenced Fox River valley. The community's mix of older homes with basements and newer developments, combined with the region's glacial till over dolomite bedrock, creates conditions where radon testing is essential. Testing data for Combined Locks (54113) is currently limited, making individual home testing crucial for residents to understand their specific radon exposure risk.

7.00

pCi/L area average

Above EPA Action Level

Outagamie County average: 7.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Combined Locks 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+

Combined Locks, 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 Combined Locks, WI

No homeowner tests have been submitted for Combined Locks 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
Greenville	11.3 mi	7.00 pCi/L	1
Oshkosh	21.2 mi	19.00 pCi/L	1
Green Bay	22.2 mi	4.00 pCi/L	1
New Holstein	24.8 mi	7.00 pCi/L	1
Pulaski	27.4 mi	4.00 pCi/L	1
Fond Du Lac	35.8 mi	5.00 pCi/L	1
Plymouth	39.2 mi	6.00 pCi/L	1
Green Lake	43.7 mi	6.00 pCi/L	1

Outagamie County Radon Profile

EPA mapping assigns Outagamie 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 1 city in Outagamie County average 7.00 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 Outagamie County home regardless of zone or a neighbor's results.

Radon FAQ for Combined Locks, WI

What EPA Radon Zone is Combined Locks in?

Combined Locks and the 54113 zip code are in Outagamie 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 Combined Locks?

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

Radon mitigation in Combined Locks 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 Combined Locks?

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.