NEXT STEPS:   Agencies are preparing a Supplemental DEIS, expected third quarter, 2012.  It will include responses to the unprecedented 3,700+ public and agency comments submitted by February 3, 2010.  It will be expanded to include the impacts of the proposed land exchange with the U.S. Forest Service.  And it will include the U.S. EPA, which has authority for compliance with federal Clean Water Act, as a cooperating agency.