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Radon Testing · Manson, IA

Radon Testing in Manson

Radon Testing in Manson, IA by Closer Look Inspectors. A photo-mapped digital report within 24 hours.

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Manson · Calhoun County

Radon Testing in Manson

Radon Testing in Manson, Calhoun County, by Closer Look Inspectors. Manson is a Calhoun County town on Iowa 7 at the center of the buried Manson impact crater, with naturally soft crater-well water and a 1979 tornado in its past, and we calibrate every visit to that.

Radon testing places an EPA-protocol continuous monitor on a home's lowest livable level to measure radon gas — and it matters across Iowa, which has the highest average indoor radon level of any state — roughly five in ten homes test above the action level.

Manson is served by our Fort Dodge team →

Craftsman bungalow with a covered front porch and stone columns — Radon Testing in Manson, IAManson
Calibrated

Tuned to Manson.

Manson housing runs to a mix of early-1900s homes, postwar ranches and the roughly 110 houses rebuilt after the June 1979 tornado, across the grid along Iowa 7 and the rebuilt blocks on the tornado's path, on Des Moines Lobe till over the center of the buried Manson impact crater, whose wells give the town unusually soft water — and that mix shapes what a radon testing here needs to find. Instrument-grade tools, a local eye, every visit.

Local conditions in Manson

Manson sits on Des Moines Lobe till — heavy, poorly drained clay that holds water against foundations and moves with moisture, which is what drives basement seepage and foundation cracking across central Iowa. Manson sits in Calhoun County, and Iowa has the highest average indoor radon level of any state — the Iowa DNR puts roughly five in ten Iowa homes above the 4.0 pCi/L action level, and Iowa sellers must disclose known radon results on the property disclosure. Finished basements concentrate it, and only a 48-hour test gives you this home's number. Footings here are set below a frost line of roughly 36 to 42 inches, and that annual freeze-thaw cycle drives the settlement cracks and ice-dam wear we calibrate every Manson visit to find.

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Questions

Common questions.

Is radon really a concern in Iowa?
Yes. The Iowa Department of Natural Resources reports that roughly 50 percent of homes statewide measure above the EPA action level, and finished basements are where it concentrates.
How long does the test run?
A 48-hour minimum under closed-house conditions; the result is delivered with your inspection report.
Why is Manson different to inspect?
Two reasons. The 1979 F4 tornado destroyed about 110 homes, so a large share of the stock is late-1970s and early-1980s construction that is now at first-replacement age for roofs, furnaces and water heaters, sitting next to survivors that are much older. And Manson's crater wells deliver naturally soft, high-fluoride water, so we check what that has done to fixtures, water heaters and any treatment gear. Calhoun County is Radon Zone 1.
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