Radon Mitigation in Kasson, MN
Radon testing and mitigation in Kasson.
Kasson sits across the county line from Olmsted, but the ground underneath is the same and the EPA puts Dodge County in the same Zone 1 radon tier. For a homeowner here, the radon question doesn't change because of which county the property tax goes to.
Same rock, different county line
Kasson and Mantorville share the K-M school district, and the two towns sit a few minutes apart on Highway 14 and Highway 57. The housing stock in Kasson covers a wider range than Mantorville does. Mid-century ranches, 1970s and 1980s splits, and a steady run of newer subdivisions on the south and east edges of town.
Because Kasson straddles a stretch of construction eras, the foundation conditions vary more than they do in a town built mostly in one decade. A 1965 ranch with a block-wall basement has different things going on than a 2015 build with a passive radon system already in the slab.
The Minnesota disclosure law on radon applies the same in Dodge County as it does in Olmsted, and homeowners and buyers in Kasson run into the same questions around testing that anyone in Rochester does.
Kasson at a glance
Radon work for a Dodge County town that shares a school district with Mantorville and sits in the same Zone 1 radon territory as Olmsted County.
- Housing
- A mix of established mid-century homes near the central blocks and a growing edge of newer subdivisions, with steady residential growth over the last two decades.
- Geology
- The same regional limestone bedrock as Olmsted County. EPA places Dodge County in its highest-risk radon zone.
- Median radon (Kasson)
- 4.7 pCi/L , above the EPA action level 41 tests/yr avg, MDH 2014–2023
- Dodge County ≥ 4 pCi/L
- 59.5% of tested homes Ranks #20 of 87 MN counties
- Distance from Rochester
- 13 miles west
- County
- Dodge
- School district
- K-M, shared with Mantorville
What the radon numbers actually say in Kasson
Across the testing the Minnesota Department of Health, Radon Testing public dataset has on file for Kasson (2014–2023), the median home reads 4.7 pCi/L. That is above the EPA action level of 4 pCi/L. The geometric mean comes in at 4 pCi/L. That is a log-scale average that tends to track better when the distribution has a long upper tail, which radon distributions always do.
Zoom out to Dodge County. 59.5% of tested homes in the county come back at or above 4 pCi/L. That ranks Dodge County #20 of 87 Minnesota counties for the share of homes above the action level. A separate 79.6% of tested homes are at or above 2 pCi/L, which is the threshold the Minnesota Department of Health uses when it recommends action.
About 41 Kasson homes get tested every year on average, drawing from a stock of roughly 2,353 housing units. The number above is not a forecast for your specific home. Radon varies house to house even on the same street. The number is a reasonable starting line for the conversation, not a prediction. See the full data set for the by-county and by-tract picture.
Three steps. On your timeline.
Measure your radon level.
We start with a measurement of what is actually in the air your family breathes. You see the result we see, and we walk through what it means in plain language.
You see the picture first.
Once you have the result, we talk through what your home is dealing with. No scripts, no pressure. You decide what to do next on your own timeline.
A conversation about your home.
If you want to take action, we look at the basement together and talk through what a plan for your foundation could look like. Every home is its own conversation.
Other towns we cover.
Mantorville
Mantorville is one of the oldest cities in Minnesota, founded in 1854, and the entire twelve-block downtown has been on the National Register since 1974. A fair number of the homes here are nearly as old as the town, and the foundations underneath them are part of the architectural record.
Byron
Byron has roughly doubled in size since 2000, and most of the housing here is younger than the kids in it. For a lot of homeowners in town, the radon question is something they're thinking about for the first time, often after a coworker brought it up or a neighbor mentioned a test.
Oronoco
Oronoco wraps around Lake Zumbro, and a lot of the housing here is tied to the water in one way or another. Older lake cabins that got converted to year-round homes, newer builds on lots with a view of the river, and rural acreage homes outside the city limits. The basements vary as much as the homes do.
Find out your radon levels with a free radon test.
About 42% of tested Olmsted County homes come back above the EPA action level. The surrounding counties are higher. The first step is knowing where yours sits, and that is the part we do for free.