(4) Federal lead agency The term Federal lead agency means the Bureau of Reclamation or Bureau of Indian Affairs. (5) Project The term project means— (A) a surface water project, a project under the purview of title XVI of Public Law 102–575 , a rural water supply project investigated under Public Law 109–451 , or a Federal portion of an integrated water resource management plan that has been subject to a review under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) and is to be carried out, funded or operated in whole or in party by the Secretary pursuant to the Act of June 17, 1902 (32 Stat. 388, chapter 1093), and Acts supplemental to and amendatory of that Act ( 43 U.S.C. 371 et seq.)