Abstract
The Mount Simon Sandstone (Cambrian), the most favorable stratum for waste injection in Ohio, presently accepts about 250 × 106 gal of industrial waste per year. Concern has been expressed about the transport of these fluids by natural hydrodynamic flow. The potentiometric surface map of the Mount Simon reservoir of Ohio has a form which mirrors the structural configuration--highest values are in the deeper part of the Appalachian basin and lowest on the Indiana-Ohio platform. Flow direction in central Ohio is indicated to be west or northwest. Head difference is 2-7 ft. Porosity and permeability data combined with this information (Darcy's law) yield velocities of less than 6 in./year. Because the assumptions involved in determining velocity in this manner are questionable, the resulting values should be considered rough approximations. Nevertheless, the calculations generally show that transport of injected fluids by hydrodynamic flow is not presently a serious hazard in Ohio. End_of_Article - Last_Page 1593------------
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