Dorchester, WI Radon Levels

Q: What EPA Radon Zone is Dorchester in?

Dorchester is in Clark County, EPA Zone 2.

Q: How much does radon mitigation cost in Dorchester?

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

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

Dorchester, WI Radon Facts

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

County Clark County, WI

Zip Code 54425

Rural Clark County places this Dorchester in central Wisconsin's EPA Zone 2, where glacial deposits over sandstone bedrock contribute to moderate radon potential. With testing data sparse for the 54425 area, homeowners should conduct professional radon testing to determine their specific exposure levels. The community's agricultural setting and varied foundation types make individual assessment particularly important.

11.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 11.00 pCi/L, based on 5 tests from 3 nearby cities. No readings have been submitted for Dorchester yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Dorchester, 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 Dorchester?

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Radon Readings Near Dorchester, WI

No homeowner tests have been submitted for Dorchester yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
7 pCi/L	Medford, WI	10.2 mi	—	Full Basement	May 2024
8 pCi/L	Medford, WI	10.2 mi	0-20 Years	Full Basement	Sep 2018
13 pCi/L	Stratford, WI	20.9 mi	0-20 Years	Partial Basement	Nov 2017
7 pCi/L	Marshfield, WI	25.3 mi	0-20 Years	Full Basement	Nov 2020
20 pCi/L	Marshfield, WI	25.3 mi	21-50 Years	Full Basement	Aug 2018

Readings are drawn from the nearest cities with submitted data. Have a result for Dorchester? Submit your reading to help your neighbors.

Clark County Radon Profile

EPA mapping assigns Clark County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Clark County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Clark County home regardless of zone or a neighbor's results.

Radon FAQ for Dorchester, WI

What EPA Radon Zone is Dorchester in?

Dorchester and the 54425 zip code are in Clark 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 Dorchester?

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

Radon mitigation in Dorchester 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 Dorchester?

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.

Radon Levels Near Dorchester, WI

User-submitted radon levels from the cities closest to Dorchester with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Medford	10.2 mi	7.50 pCi/L	2
Stratford	20.9 mi	13.00 pCi/L	1