Lodi, WI Radon Levels

Q: What EPA Radon Zone is Lodi in?

Lodi is in Columbia County, EPA Zone 2.

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

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

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

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

Lodi, WI Radon Facts

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

County Columbia County, WI

Zip Code 53555

Residents of Columbia County can benefit from radon testing in this Madison Metro community (53555), where glacial deposits over limestone bedrock create conditions conducive to radon accumulation. Testing data for Lodi remains limited, making professional radon assessment especially important for homeowners. With Wisconsin's EPA Zone 2 designation, baseline testing provides valuable peace of mind for families in this region.

7.25

pCi/L area average

Above EPA Action Level

Columbia County average: 7.25 pCi/L, based on 4 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Lodi 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+

Lodi, WI Radon Mitigation

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

Need Radon Mitigation or Testing in Lodi?

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Radon Readings Near Lodi, WI

No homeowner tests have been submitted for Lodi 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
Arlington	9.7 mi	6.00 pCi/L	1
Waunakee	11.3 mi	5.50 pCi/L	2
Middleton	15.5 mi	4.00 pCi/L	1
Portage	16.0 mi	9.00 pCi/L	1
Pardeeville	18.3 mi	4.00 pCi/L	1
Verona	22.6 mi	18.00 pCi/L	1
Mount Horeb	24.3 mi	9.00 pCi/L	1
Fall River	25.3 mi	10.00 pCi/L	1

Columbia County Radon Profile

EPA mapping assigns Columbia 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 4 cities in Columbia County average 7.25 pCi/L across 4 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 Columbia County home regardless of zone or a neighbor's results.

Radon FAQ for Lodi, WI

What EPA Radon Zone is Lodi in?

Lodi and the 53555 zip code are in Columbia 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 Lodi?

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

Radon mitigation in Lodi 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 Lodi?

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.