Pursuant to conditions itemized in Contract Number E(29-2) - 3575 between the United States Energy Research and Development Administration (ERDA) and the University of Wyoming as represented by the Water Resources Research Institute (WRRI) the following five-chapter report titled "Environmental Reconnaissance Study for Sweetwater County In-Situ Oil Shale Research" has been prepared. This document seeks to inform ERDA officials of the pertinent environmental regulation and requirements which must satisfied before field operations can begin. Most of the Pertinent rules and regulations are of recent vintage and often require specific interpretation for each project action.