a Frontline co-production with Hedrick Smith Productions ; WGBH Educational Foundation ; Frontline executive producer, David Fanning ; senior producer, Hedrick Smith ; producer, Marc Shaffer ; written by Hedrick Smith and Rick Young ; director, Rick Young
Committee to Assess the Scientific Basis of the Total Maximum Daily Load Approach to Water Pollution Reduction, Water Science and Technology Board, Division on Earth and Life Sciences, National Research Council
George R. Gibson, Jr., project leader and editor ; principal authors: Michael T. Barbour, James B. Stribling, James R. Karr ; U.S. Environmental Protection Agency
U.S. Environmental Protection Agency Office of Research and Development, Center for Environmental Research Information, Robert S. Kerr Environmental Research Laboratory