Nos. 76-1474, 76-2057. Argued March 17, 1977. Decided November 11, 1977. George C. Freeman, Jr., Richmond, Va. (Henry V. Nickel, Michael B. Barr, Washington, D.C., Hunton Williams, Richmond, Va., on brief), for petitioners. James T. Harrington, Chicago, Ill., for U.S. Steel Corp. Thomas A. Larsen, Atty., Environmental Protection Agency, Washington, D.C., Sarah Chasis, New York City, for Natural Resources Defense Council, Inc. (Peter R. Taft, Asst. Atty. Gen., Alfred T. Ghiorzi and Michael P. Carlton
(a) This subpart establishes the section 316(b) requirements that apply to cooling water intake structures at existing facilities that are subject to this subpart. These requirements include a number of components. These include standards for minimizing adverse environmental impact associated with the use of cooling water intake structures and required procedures (e.g., permit application requirements, information submission requirements) for establishing the appropriate technology requirements at
(a) The owner or operator of an existing facility, as defined in § 125.92(k) , is subject to the requirements at §§ 125.94 through 125.99 if: (1) The facility is a point source; (2) The facility uses or proposes to use one or more cooling water intake structures with a cumulative design intake flow (DIF) of greater than 2 million gallons per day (mgd) to withdraw water from waters of the United States; and (3) Twenty-five percent or more of the water the facility withdraws on an actual intake flow
(a) This subpart establishes requirements that apply to the location, design, construction, and capacity of cooling water intake structures at new facilities. The purpose of these requirements is to establish the best technology available for minimizing adverse environmental impact associated with the use of cooling water intake structures. These requirements are implemented through National Pollutant Discharge Elimination System (NPDES) permits issued under section 402 of the Clean Water Act (CWA)