The purpose of the Illinois Water Quality Management (WQM) Plan is to consolidate and streamline portions of approved State and Areawide WQM plans in order to facilitate their usage in the operations of all designated WQM Agencies. The WQM Plan represents a joint effort by the four agencies with WQM planning responsibilities. The Illinois WQM Plan is comprised of four distinct parts. Part one provides the basic conceptual framework and objectives of the plan. Part two outlines the process for point source decision-making within the WQM plan. Part three of the WQM Plan is divided into two major areas which were identified in the initial water quality management plans. These sections are: agriculture, construction, stream use/water quality standards, hydrographic modification, urban runoff, mineral extraction: mining, mineral extraction: oil field brine and groundwater. The groundwater section includes residual wastes and on-site disposal. Part four of this document discusses management.