Radon Mitigation in Baltic, SD
Call (605) 210-7667 Minnehaha County, 16 miles from Sioux Falls, population about 1,200.
Big Sioux River town north of Sioux Falls, built where the river cuts down toward the quartzite.
Why radon is a problem in Baltic
Baltic sits right on the Big Sioux, where the valley narrows and the underlying Sioux Quartzite comes close to the surface. Thin cover over fractured bedrock is one of the more reliable predictors of a high reading in eastern South Dakota.
What Baltic housing is built like
A compact older core with some pre-1950 block and stone foundations, plus newer homes on the higher ground away from the river. River-adjacent basements often have both a moisture history and a radon problem, and the two get confused.
Baltic homeowners often assume a damp basement smell is just the river. Some of it is, and some of it is soil gas coming up the same path.
Who calls us from Baltic
Baltic homeowners frequently call about a smell before they call about radon. A damp basement near the Big Sioux gets blamed on the river, and some of it is the river. The rest arrives through the same cracks, and separating the two takes a measurement rather than an opinion.
Local landmarks and roads in our service area
Crews working Baltic cover the Big Sioux River, Baltic High School, the Baltic dam, South Dakota Highway 115 and Main Street, and the surrounding rural addresses in Minnehaha County.
Radon services available in Baltic
Baltic Radon Mitigation Systems
Sub-slab depressurization systems installed in a day, tested after, guaranteed under 4.0 pCi/L.
Baltic Radon Testing
Short-term and long-term testing, plus post-mitigation verification tests with lab documentation.
Fan Replacement & Repair in Baltic
Dead fan, dropped manometer, howling pipe, or a system somebody else installed wrong.
finished basement systems for Baltic homes
Routing a system through a finished lower level without tearing out drywall you paid for.
crawl space systems for Baltic homes
Sealed vapor barrier over exposed soil, then sub-membrane depressurization.
Baltic Sump Pump Sealing
Airtight sump lids with a viewing port and float access, tied into the radon system.
Radon in Well Water in Baltic
Aeration and GAC systems for acreages and rural homes on private wells.
What is particular about Baltic
Baltic sits at the point where the Big Sioux has cut down toward the Sioux Quartzite, and thin cover over fractured bedrock is one of the more reliable predictors of a high reading in eastern South Dakota. It also produces readings that move more with weather than a deep-till house does, because the soil responds quickly to a falling barometer ahead of a storm. Two short tests a month apart can genuinely disagree here, and neither one is wrong.
Common questions from Baltic
Why do my two radon tests disagree?
Barometric swing moves soil gas more in thin cover over fractured rock than in deep till. A 90-day alpha track averages the highs and lows and gives you a number to plan against.
Will a radon system help my damp basement?
Often, particularly if there is a crawl portion that gets a sealed membrane. The system pulls ground moisture out along with the gas and the smell usually changes within weeks.
Scheduling and travel
Sixteen miles north on Highway 115. Baltic gets grouped with Dell Rapids and Renner trips, so ask when we are next headed that direction rather than assuming a small job is not worth scheduling.
Ready for a number? Call (605) 210-7667 or send the form. Background on pricing is in our Sioux Falls radon cost guide, and the full service list is on the services page.