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  • Notice of State Water Board Public Comment Period, Newport Bay Copper TMDLs.
    In accordance with the State Water Resources Control Board's (State Water Board) Notice of Opportunity for Public Comment (available in English, Spanish/Español, and Traditional [Mandarin] Chinese /繁體中文"到繁體) on the Newport Bay Copper TMDLs, the Basin Plan amendment and supporting documents are available for public comment prior to scheduling a public hearing for consideration of approval by the State Water Board. The Santa Ana Water Board adopted the Basin Plan amendment on December 2, 2022, by Resolution R8-2022-0012. The Basin Plan amendment and supporting documents can be found here under Copper TMDL: TMDLs | Santa Ana Regional Water Quality Control Board ( Please note that the end of the Public Comment period for the Newport Bay Copper TMDLs Basin Plan amendment and supporting documents has been revised: Written comments are now due at 12 noon on July 17, 2023.

  • At the May 5, 2023 Regional Board meeting the Santa Ana Water Board, Division of Drinking Water and Orange County Water District collectively presented an information item discussing PFAS updates. To view the presentation, please click on the following link PFAS Presentation

  • In accordance with the Notice of Opportunity for Public Comment and Public Hearing for the Draft 2024 California Clean Water Act Section 303(d) List & Board Hearing released on February 3, 2023, the draft 303(d) List and draft staff report are available for public review and comment. The public comment period is February 16 - April 3, 2023.
    A State Water Board public hearing will be held on March 21, 2023. Please refer to the linked public notice for details. The draft 2024 California Integrated Report can be found on the program's webpage.

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