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Radon Testing · Otho, IA

Radon Testing in Otho

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

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Otho · Webster County

Radon Testing in Otho

Radon Testing in Otho, Webster County, by Closer Look Inspectors. Otho is a former coal and clay-products town above the Des Moines River just south of Fort Dodge, platted in 1893.

Radon testing places an EPA-protocol continuous monitor on a home's lowest livable level to measure radon gas — and it matters across Iowa, where Iowa HHS reports 71.6 percent of homes above the action level — the largest percentage of any state.

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Modern white farmhouse-style home with black windows and dark garage doors — Radon Testing in Otho, IAOtho
Local housing

Homes in Otho.

Otho housing runs to homes from the 1893 plat and the coal and clay-works years, postwar houses, and newer homes on the outskirts, across the town grid above the Des Moines River valley and the rural lots toward Kalo, on river-bluff ground over Des Moines Lobe till, in Webster County's old coal and clay belt — and that mix shapes what a radon testing here needs to find.

Local conditions in Otho

Otho 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. Otho sits in Webster County, and every Iowa county is EPA Radon Zone 1. Iowa HHS reports Iowa has the largest percentage of homes above the 4.0 pCi/L action level of any state — 71.6 percent in the Iowa Radon Survey — and the Iowa seller disclosure form asks for any known radon test results. Finished basements concentrate it, and only a 48-hour test gives you this home's number. Iowa leaves frost depth to the local building code rather than one statewide number, and the annual freeze-thaw cycle drives the settlement cracks and ice-dam wear that Otho-area homes face.

Home inspection in Otho →  ·  More about radon testing →

Questions

Common questions.

Is radon really a concern in Iowa?
Yes. The Iowa Department of Natural Resources reports that more than two in five Iowa homes have radon levels that pose a significant health risk, 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.
What should I know before buying in Otho?
Otho grew on coal mines and the Kalo brick-and-tile works, so the older stock is genuinely old and sits near the Des Moines River valley. Foundations and slopes are worth reading for movement and drainage, the age of the services matters, and a sewer scope is recommended on the original streets. Rural lots add well and septic. Webster County is Radon Zone 1; a 48-hour test is standard.
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