; or (2) for any direct operational expenses of a water, wastewater, or waste disposal facility incurred by the entity, as determined by the Secretary. (d) Appropriation (1) In general Out of any money in the Treasury of the United States not otherwise appropriated, there are appropriated $1,000,000,000 to carry out this section. (2) Reservation for administrative expenses The Secretary shall reserve 3 percent of the amount appropriated by paragraph (1) for administrative expenses incurred in carrying out this section. (3) Availability The amounts appropriated in paragraph (1) shall remain available through December 31, 2021.