; (B) installation of anaerobic digesters; (C) methane capture; (D) methane transfer; (E) facility upgrades and retrofits necessary to create or improve waste-to-energy systems; and (F) other new and emerging, but proven, technologies that transform waste to energy. (2) Limitation A grant to a recipient under the pilot program shall be not more than $4,000,000. (e) Reports (1) Report to the Administrator Not later than 1 year after receiving a grant under the pilot program and each year thereafter for which amounts are made available for the pilot program under subsection (f), the recipient of the grant shall submit to the Administrator a report describing the impact of that project on the communities within 3 miles of the treatment works. (2) Report to Congress Not later than 1 year after first awarding grants under the pilot program and each year thereafter for which amounts are made available for the pilot program under subsection (f), the Administrator shall submit to Congress a report describing— (A) the applications received by the Administrator for grants under the pilot program; and (B) the projects for which grants were awarded under the pilot program. (f) Authorization of appropriations (1) In general There is authorized to be appropriated to carry out the pilot program $17,500,000 for each of fiscal years 2021 and 2022, to remain available until expended. (2) Limitation on use of funds Of the amounts made available for grants under paragraph (1), not more than 2 percent may be used to pay the administrative costs of the Administrator. 2006. Pilot program for alternative water source projects Section 220 of the Federal Water Pollution Control Act ( 33 U.S.C. 1300 ) is amended— (1) in subsection (b), in the heading, by striking In General and inserting Establishment ; (2) in subsection (d)— (A) by striking paragraph (2); and (B) by redesignating paragraph (3) as paragraph (2); (3) by striking subsection (e)