The Corps submitted to Congress the Great Lakes and Mississippi River Interbasin Study (GLMRIS) Report Jan. 6, 2014. The report contains eight alternatives, each with concept-level design and cost information, and evaluates the potential of these alternatives to prevent, to the maximum extent possible, the spread of 13 aquatic nuisance species, to include Asian carp. The options concentrate on the Chicago Area Waterway System and include a wide spectrum of alternatives ranging from continuing current activities to complete separation of the watersheds.