This report presents the findings form a waste-load allocation study of the lower 25 miles of the Minnesota River, designed to determine the maximum pollutant and loading that the river could assimilate. Included are brief backgrounds on earlier waste studies and point-source pollution-control efforts, a description of the Minnesota River region, a listing of point-source dischargers, and 1985 water quality and effluent standards. The study model is described in great technical detail, along with the results.