; and (2) in paragraph (3), by striking The Administrator and all that follows through the period and inserting Not later than 12 months after the date of the enactment of the Beach Act of 2017 , and biennially thereafter, the Administrator shall update the list described in paragraph (1). . 12. Impact of climate change on pathogenic contamination of coastal recreation waters (a) Study The Administrator shall conduct a study on the long-term impact of climate change on pathogenic contamination of coastal recreation waters. (b) Report (1) In general Not later than one year after the date of enactment of this Act, the Administrator shall submit to Congress a report on the results of the study conducted under subsection (a). (2) Information on potential contamination impacts The report shall include information on the potential impacts of pathogenic contamination on ground and surface water resources as well as public and ecosystem health in coastal communities. (3) Federal actions The report shall highlight necessary Federal actions to help advance the availability of information and tools to assess and mitigate these effects in order to protect public and ecosystem health. (4) Consultation In developing the report, the Administrator shall work in consultation with agencies active in the development of the National Water Quality Monitoring Network and the implementation of the Ocean Research Priorities Plan and Implementation Strategy. 13. Impact of excess nutrients on coastal recreation waters (a) Study The Administrator shall conduct a study to review the available scientific information pertaining to the impacts of excess nutrients on coastal recreation waters. (b) Report (1) In general Not later than one year after the date of enactment of this Act, the Administrator shall transmit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Environment and Public Works of the Senate a report on the results of the study conducted under subsection (a). (2) Impacts