San Diego Region - Tentative Orders

Notice of Written Comment Period for Tentative Order No. R9-2025-0071. On October 1, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2025-0071, Waste Discharge Requirements for the City of Chula Vista, Poggi Canyon Channel Maintenance 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, October 31, 2025. Questions should be directed to Lisa Honma by phone at 619-521-3367, or by email at Lisa.Honma@waterboards.ca.gov.

Notice of Written Comment Period for Tentative Order No. R9-2025-0124. On September 15, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Settlement Agreement and Stipulation for Entry of Administrative Civil Liability Order No. R9-2025-0124 (Tentative Order) for public review and comment. The Tentative Order was issued to the City of Laguna Beach (City) for the unauthorized discharge of 78,810 gallons of untreated sewage to the Pacific Ocean at Bluebird Beach on November 29, 2023. To resolve the violations described in the Tentative Order without formal administrative proceedings, the San Diego Water Board’s Prosecution Team and the City reached a settlement and agreed to the imposition of an administrative civil liability in the amount of $108, 808, including $50,000 of liability to be suspended upon the complete implementation of the Tidepool Docent Program Supplemental Environmental Project (SEP), as described in Attachment B of the Tentative Order. The Tentative Order, all attachments, and the 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 October 15, 2025. Questions should be directed to Kate Buckley at (619) 521-8045 or kate.buckley@waterboards.ca.gov.

Notice of Written Comment Period for revised Tentative Order No. R9-2025-0005. The California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) and United States Environmental Protection Agency, Region 9 (USEPA) are jointly seeking public comments on proposed revisions to Tentative Order No. R9-2025-0005 (formerly R9-2024-0005), NPDES Permit No. CA0107409, Waste Discharge Requirements and National Pollutant Discharge Elimination System Permit for the City of San Diego E.W. Blom Point Loma Wastewater Treatment Plant Discharge to the Pacific Ocean through the Point Loma Ocean Outfall (revised Tentative Order and Permit). All written comments are due by 5:00 p.m. on Monday, October 13, 2024. Questions and comments should be directed to Joann Lim @ 619-521-3362 or Joann.Lim@waterboards.ca.gov.

Notice of Opportunity to Comment
Tentative Oder No. R9-2025-0005 (For a copy of this document, please email a request to our records administrator at rb9_records@waterboards.ca.gov.)

Notice of Public Hearing and Review Period for Tentative Order No. R9-2025-0012 and Tentative Resolution No. R9-2025-0054. The San Diego Water Board is releasing the following documents for public review:

The Notice above includes information about the public hearing for consideration of the Revised Tentative Order and Revised Tentative Resolution. The Notice above explains why the documents were revised and why the documents are being recirculated. The San Diego Water Board is not accepting written comments on these documents, however, oral or written comments may be provided during the public hearing. Questions should be directed to Dr. Mahsa Izadmehr by email at Mahsa.Izadmehr@waterboards.ca.gov.

Notice of Written Comment Period for Tentative Order No. R9-2025-0125. On August 5, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No R9-2025-0125, An Order Rescinding Order No. 88-54, Waste Discharge Requirements for Granite Construction Company, San Diego County (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, September 5, 2025. Questions and comments should be directed to Mr. Adrian Hinkle by phone at 619-521-8047, or via e-mail at adrian.hinkle@waterboards.ca.gov

Notice of Written Comment Period and Hearing for Tentative Order No. R9-2025-0137. On August 1, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2025-0137, Settlement Agreement and Stipulation for Entry of Administrative Liability in the Matter of Moulton Niguel Water District, January 2025 Sanitary Sewer System Spill (Tentative Order) for public review and comment. The Tentative Order is a stipulated administrative civil liability Order to settle liability associated with a sanitary sewer system spill that occurred from the Moulton Niguel Water District’s sanitary sewer system on January 10, 2025. The spill resulted in a discharge of 464,700 gallons of untreated sewage into Sulphur Creek, Aliso Creek, and Aliso Beach. To resolve the violation described in the Tentative Order without formal administrative proceedings, the San Diego Water Board’s Prosecution Team and Moulton Niguel Water District (Parties) reached a settlement and agreed to the imposition of an administrative civil liability in the amount of $553,000. The Notice of Public Hearing and Opportunity to Comment, which includes instructions on how to submit written comments, is available using the link below. All written comments are due by 5:00 p.m. on September 3, 2025. Questions should be directed to Christina Arias @619-521-3361 or Christina.Arias@waterboards.ca.gov.

Notice of Written Comment Period for Tentative Order No. R9-2025-0003. On July 31, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2025-0003, NPDES No. CA9000001, Waste Discharge Requirements for the East County Advanced Water Purification Joint Powers Authority East County Advanced Water Purification Project Discharge to Lake Jennings and Sycamore Creek (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, September 1, 2025. 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 Written Comment Period for Tentative Order No. R9-2025-0060. On July 31, 2025, the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) released Tentative Order No. R9-2025-0060, Waste Discharge Requirements for the East County Advanced Water Purification Joint Powers Authority, East County Water Recycling Facility, San Diego County (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 Thursday Monday, September 1, 2025. 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.

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