; (3) the owner of the facility holds a valid water right for use of the water on the non-Federal land of the owner under State law, with a priority date that predates the date of designation; and (4) it is not practicable or feasible to relocate the facility to land outside of the Pleasant View Ridge Wilderness and continue the beneficial use of water on the non-Federal land recognized under State law. (b) Terms and conditions (1) Required terms and conditions In a special use authorization issued under subsection (a), the Secretary may— (A) allow use of motorized equipment and mechanized transport for operation, maintenance, or reconstruction of a facility, if the Secretary determines that— (i) the use is the minimum necessary to allow the facility to continue delivery of water to the non-Federal land for the beneficial uses recognized by the water right held under State law; and (ii) the use of nonmotorized equipment and nonmechanized transport is impracticable or infeasible; and (B) prohibit use of the facility for the diversion or transport of water in excess of the water right recognized by the State on the date of designation. (2) Discretionary terms and conditions In a special use authorization issued under subsection (a), the Secretary may require or allow modification or relocation of the facility in the wilderness, as the Secretary determines necessary, to reduce impacts to wilderness values set forth in section 2 of the Wilderness Act ( 16 U.S.C. 1131 ) if the beneficial use of water on the non-Federal land is not diminished.