Los Angeles Mayor Antonio Villaraigosa, left center, poses with key partners around a map of the U.S. Army Corps of Engineers Los Angeles District’s Ecosystem Restoration Feasibility Study at North Atwater Park Oct. 9. From the left are; City Engineer Gary Lee Moore, Friends of the LA River founder Lewis MacAdams, Los Angeles District Commander Col. Mark Toy, Director of the Los Angeles City Bureau of Sanitation Enrique Zaldivar, Miss Me company spokesperson Lilly Kim, Chairperson of the White House Council on Environmental Quality Nancy Sutley, Councilmember Tom LaBonge and the District's Chief of Planning Division Dr. Josephine Axt.