SOURCE WATER PETITION PROGRAM.

SEC. 50103. SOURCE WATER PETITION PROGRAM. Section 1454 of the Safe Drinking Water Act (42 U.S.C. 300j–14) is amended—(1) in subsection (a)—(A) in paragraph (1)(A), in the matter preceding clause (i), by striking “political subdivision of a State,” and inserting “political subdivision of a State (including a county that is designated by the State to act on behalf of an unincorporated area within that county, with the agreement of that unincorporated area),”; (B) in paragraph (4)(D)(i), by inserting “(including a county that is designated by the State to act on behalf of an unincorporated area within that county)” after “of the State”; and (C) by adding at the end the following:“(5) Savings provision.—Unless otherwise provided within the agreement, an agreement between an unincorporated area and a county for the county to submit a petition under paragraph (1)(A) on behalf of the unincorporated area shall not authorize the county to act on behalf of the unincorporated area in any matter not within a program under this section.” ; and (2) in subsection (e), in the first sentence, by striking “2021” and inserting “2026”.