; (2) water efficiency or conservation, including the rehabilitation or replacement of existing leaking pipes; (3) stormwater harvesting and use of reclaimed and recycled water, and investment in pipes used for the purposes of transporting recycled water; (4) increasing energy efficiency in public water systems (as defined in section 1401 of the Safe Drinking Water Act), including public water systems that use pump or hydraulic systems; and (5) implementation of source water protection plans under the Safe Drinking Water Act. . (b) Drinking water State revolving funds Section 1452 of the Safe Drinking Water Act ( 42 U.S.C. 300j–12 ) is amended by adding at the end the following: (s) Prioritization of green projects Each State that has entered into a capitalization agreement pursuant to this section may prioritize projects or activities that maximize the potential for efficient water use, reuse, recapture, and conservation, and energy conservation, taking into account the cost of constructing the project or activity and the cost of operating and maintaining the project or activity over the life of the project or activity. . (c) Authorization of appropriations (1) State water pollution control revolving funds Section 607 of the Federal Water Pollution Control Act ( 33 U.S.C. 1387 ) is amended to read as follows: 607. Authorization of appropriations There are authorized to be appropriated to carry out this title— (1) $2,000,000,000 for fiscal year 2018; and (2) $2,400,000,000 for fiscal year 2019. . (2) Drinking water treatment revolving loan fund Section 1452(m) of the Safe Drinking Water Act ( 42 U.S.C. 300j–12(m) ) is amended to read as follows: (m) Authorization of appropriations There are authorized to be appropriated to carry out this section— (1) $1,186,000,000 for fiscal year 2018