; and (ii) the unit operations and maintenance costs of the Project would be reduced by adding more customers to the Project. (B) Authorizations for additional Project Service Areas (i) New Mexico In addition to delivering water supply from the Project to the Nation communities in the San Juan River Basin, the Nation may expand the Project Service Area in order to deliver water supply from the Project to communities of the Nation within the Rio San Jose Basin, New Mexico. (ii) Arizona In addition to delivering water supply from the Project to the Nation communities of Fort Defiance and Window Rock, Arizona, and subject to section 10603(c)(1), the Nation may expand the Project Service Area in order to deliver water supply from the Project to the Nation community of Lupton, Arizona, within the Little Colorado River Basin, Arizona. ; (2) in subsection (b)— (A) in the matter preceding paragraph (1)— (i) by inserting acquire, before construct, ; and (ii) by striking Draft Impact Statement and inserting Final Environmental Impact Statement, as further refined in, and including the facilities identified in, the Working Cost Estimate and any subsequent supplemental documents prepared in accordance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) ; (B) by striking paragraph (1) and inserting the following: (1) The water conveyance and storage facilities associated with the San Juan Generating Station (the coal-fired, 4-unit electric power plant and ancillary features located by the San Juan Mine near Waterflow, New Mexico), including the diversion dam, the intake structure, the river pumping plant, the pipeline from the river to the reservoir, the dam and associated reservoir, and any associated land, or interest in land, or ancillary features. ; (C) in paragraph (2)(A)— (i) by striking River near Kirtland, New Mexico, and inserting Generating Station Reservoir ; and (ii) by inserting generally before follows United States Highway 491