1. Short title This Act may be cited as the South Florida Ecosystem Enhancement Act of 2023 . 2. South Florida program Title I of the Federal Water Pollution Control Act ( 33 U.S.C. 1251 et seq. ) is amended by adding at the end the following: 125. South Florida (a) Definitions In this section: (1) Science Coordination Group The term Science Coordination Group means the South Florida Ecosystem Restoration Science Coordination Group established to support the South Florida Ecosystem Restoration Task Force. (2) South Florida The term South Florida means— (A) all land and water within the administrative boundaries of the South Florida Water Management District and contiguous near-shore coastal waters, including the Florida Keys; and (B) Florida’s Coral Reef and the associated patch reef, hard-bottom, and seagrass resources. (3) South Florida Ecosystem Restoration Task Force The term South Florida Ecosystem Task Force means the South Florida Ecosystem Restoration Task Force established by section 528(f)(1) of the Water Resources Development Act of 1996 ( Public Law 104–303 ; 110 Stat. 3771). (4) South Florida Ecosystem Restoration Working Group The term South Florida Ecosystem Restoration Working Group means the working group established by the South Florida Ecosystem Task Force pursuant to section 528(f)(2)(D) of the Water Resources Development Act of 1996 ( Public Law 104–303 ; 110 Stat 3771). (5) South Florida Program The term South Florida Program means the South Florida Program established under subsection (b)(1). (b) South Florida program (1) Establishment The Administrator shall establish within the Water Division of the Region 4 Office of the Environmental Protection Agency the South Florida Program. (2) Duties In carrying out the South Florida Program, the Administrator shall— (A) assess trends in water quality, including trends that affect uses of water in South Florida; (B) collect, characterize, and assess data to identify existing or potential water quality problems and the causes of those problems