San Diego Region - Public Notices for Section 401 Water Quality Certifications
Public Notices
The San Diego Regional Water Quality Control Board is currently reviewing applications for water quality certification under Section 401 of the Clean Water Act for the following projects. State regulations require that these applications are publicly noticed for a minimum of twenty-one (21) days prior to the San Diego Water Board taking an action.
We encourage public comments on the proposed work which will be considered in the decision on certification. You may submit comments by email, mail, or fax to the San Diego Water Board. Please include the Project Name and Place ID Number in the subject line of your correspondence and deliver to:
California Regional Water Quality Control Board
San Diego Region
2375 Northside Drive, Suite 100
San Diego, CA 92108
RB9_DredgeFill@waterboards.ca.gov
Fax: (619) 516-1994
For Project-specific information, please contact the assigned San Diego Water Board staff. To schedule a file review, email rb9_records@waterboards.ca.gov.
Comment Period |
Place ID Number |
Project Name and Description |
Contact |
4/13/2026 - 5/4/2026 |
895681 |
Paradise Creek Educational Park Wetland Expansion Improvements Project The Applicant proposes to expand the existing southern coastal salt marsh and native upland habitat, implement trash control measures, and provide park and educational opportunities for the community at Paradise Creek. Project construction would require the partial demolition of existing industrial facilities, grading the streambank for the expansion of habitat, and soil excavation. The project is located in the City of National City, San Diego County |
Lauren Kim |
4/10/2026 - 5/1/2026 |
905104 |
Silver Gate Tunnel Abandonment Project The applicant proposes the permanent abandonment and stabilization of existing dual underground cooling tunnel intake and discharge tunnels, including bulkhead walls, for the former Silver Gate Power Plant, at the shoreline of San Diego Bay. The project is located in the city of San Diego in San Diego County. |
Alan Monji |
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Contacts
- For general inquiries, send an email to:
RB9-401Certification@waterboards.ca.gov
Office Phone (619) 516-1990


