Natural Resources Defense Council, Inc., a Non-Profit New York Corporation v. Russell E. Train, Administrator of Environmental Protection Agency

ROBB, Circuit Judge:

Appellants, referred to here as plaintiffs, are four non-profit corporations interested in the implementation and enforcement of federal laws protecting the . environment. They brought this suit in the District Court against the Administrator of the Environmental Protection Agency (EPA) “to review his implementation of Sections 101(a)(3) and 307(a)(1) of the Federal Water Pollution Control Act Amendments” of 1972 (FWPCA) 33 U.S.C. §§ 1251(a)(3), 1317(a)(1). The suit challenges the Administrator’s action, pursuant to the statute, in publishing an initial list of toxic…