The following report was developed by the Oklahoma Water Resources Board and CDM, the OCWP's lead engineering firm, to present the results of OCWP analyses with particular emphasis on planning basins (i.e., "hot spots") with the most significant anticipated water supply challenges and potential options based upon physical supply availability, permit availability, and water quality constraints.; This section documents the methods and results of the Oklahoma Comprehensive Water Plan (OCWP) analyses to determine the basins in Oklahoma with the most significant statewide water supply challenges, referred to herein as "hot spots." Water supply issues were determined based on physical supply availability, permit availability, and water quality constraints. A detailed assessment of the most effective supply options for the hot spot basins was conducted and is detailed as part of this report.