Basement.6.0. -

: If a basement tests at 6.0, homeowners are typically advised to install a radon mitigation system , which usually involves a vent pipe and a specialized fan to pull gas from beneath the slab and vent it safely outside. Construction and Building Codes

: Geologists use the term "basement" to describe the thick layer of ancient, often magnetic, rock beneath sedimentary layers. In seismic modeling, a velocity of roughly 6.0 km/s is a standard benchmark used to identify the top of this crystalline basement crust. Chartered Membership Examination - IStructE basement.6.0.

: Radon is measured in picocuries per liter (pCi/L). A level of 6.0 pCi/L is significantly above the Environmental Protection Agency (EPA) "action level" of 4.0 pCi/L. : If a basement tests at 6