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Radon Testing · Williamson, IA

Radon Testing in Williamson

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

Williamson · Lucas County

Radon Testing in Williamson

Radon Testing in Williamson, Lucas County, by Closer Look Inspectors. Williamson is a small Lucas County coal-camp town platted over a documented 300-foot mine shaft.

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.

Williamson homes are inspected by a local partner in our Iowa network.  ·  Call or text (563) 517-7815

Two-story home with gabled roof and attached two-car garage — Radon Testing in Williamson, IAWilliamson
Local housing

Homes in Williamson.

Williamson housing runs to early-1900s coal-camp housing from the Rock Island era, small and simply built, with limited later construction, across the small town plat and the surrounding Lucas County ground toward the old Tipperary and Olmitz camps, on dissected Southern Iowa Drift Plain in Lucas County, over documented historic underground coal workings — and that mix shapes what a radon testing here needs to find.

Local conditions in Williamson

No Iowa law requires a home inspection before a sale — the one mandatory time-of-transfer inspection covers private septic systems (Iowa Code 455B.172) — which makes an independent inspection the only thorough, buyer-side read on a Williamson home. Williamson sits in Lucas 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 Williamson-area homes face.

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.
Is mine subsidence a real concern for a Williamson property?
It is a fair question, and the honest answer is: check the map, do not assume the worst. Williamson was a coal-boom town, originally platted as Gunwald and renamed in 1922, and the documented No. 3 mine worked a 300-foot shaft over roughly 790 underground acres. Iowa DNR publishes a public coal-mine map, and the Iowa Department of Agriculture and Land Stewardship runs a program specifically for mining-related subsidence. But the Iowa Geological Survey's study of the heavily undermined Centerville area recorded relatively few reported mine-related problems, so undermined ground is not the same as damaged houses. The pattern and age of any movement show up in the foundation and framing.
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