San Diego Region - Tentative Orders

• Notice of Written Comment Period for Tentative Order No. R9-2026-0016. On January 13, 2026, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) issued an Offer to Settle Administrative Civil Liability (Tentative Order) to Channelside Water Resources LP to address a mandatory minimum penalty associated with a serious effluent violation of Order No. R9-2019-0003, as amended by Orders No. R9-2020-0004 and No. R9-2023-0137, NPDES No. CA0109223, Waste Discharge Requirements for the Poseidon Resources (Channelside) LP Claude “Bud” Lewis Carlsbad Desalination Plant Discharge to the Pacific Ocean. On February 11, 2026, Channelside Water Resources LP accepted the San Diego Water Board offer and waived its right to a hearing. The Tentative Order and Notice of Opportunity to Comment, which contains instructions on how to submit written comments, are available at the links below. All written comments are due by 5:00 p.m. on Thursday, March 19, 2026. Questions and comments, including requests to review a signed copy of the Tentative Order, should be directed to Cailynn Smith via email at Cailynn.Smith@waterboards.ca.gov, or by phone at 619-521-3380.

  • Notice of Opportunity to Comment
  • Tentative Order No. R9-2026-0016

• Notice of Written Comment Period for Tentative Order No. R9-2026-0025. On January 28, 2026, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2026-0025, Waste Discharge Requirements for Tri Pointe Homes, Nakano Project (Tentative Order) for public review and comment. The Tentative Order and Notice of Public Written Comment Period, which contains instructions on how to submit written comments, are available using the links below. All written comments are due by 5:00 p.m. on Friday, February 27, 2026. Questions should be directed to Ariel Cutter by phone at 619-521-8052, or by email at Ariel.Cutter@waterboards.ca.gov.

  • Notice of Public Written Comment Period
  • Tentative Order No. R9-2026-0025

• Notice of Written Comment Period for Tentative Order No. R9-2026-0003. On January 16, 2026, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2026-0003, Waste Discharge Requirements for Closure and Post-Closure Maintenance and Monitoring for Ramona Landfill Inc., a Subsidiary of Republic Services, Ramona Landfill San Diego County, California (Tentative Order) for public review and comment. The Tentative Order and Notice of Opportunity to Comment which contains instructions on how to submit written comments, are available using the links below. All written comments are due by 5:00 p.m. on Monday, February 16, 2026. Questions and comments should be directed to Erin Schmitt by phone at 619-521-5898, or via e-mail at Erin.Schmitt@waterboards.ca.gov.

  • Notice of Opportunity to Comment
  • Tentative Oder No. R9-2026-0003

• Notice of Written Comment Period for Tentative Order No. R9-2026-0001. On December 10, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2026-0001, Amending Order No. R9-2010-0032, Waste Discharge Requirements and Master Reclamation Permit for the City of Escondido, Hale Avenue Resource Recovery Facility and Order No. R9-2023-0131, Waste Discharge Requirements for the City of Escondido Membrane Filtration and Reverse Osmosis Facility (Tentative Order) for public review and comment. The Tentative Order and Notice of Opportunity to Comment which contains instructions on how to submit written comments, are available using the links below. All written comments are due by 5:00 p.m. on Friday, January 9, 2026. Questions and comments should be directed to Mr. Brandon Bushnell by phone at 619-521-8044, or via e-mail at Brandon.Bushnell@waterboards.ca.gov.

  • Notice of Public Hearing and Written Comment Period
  • Tentative Order No. R9-2026-0001