Section 401 Water Quality Certification - Final Letters

Section 401 WQC - Program

The following Section 401 Water Quality Certification (WQC) actions have been issued within the previous 60 days. *

DATE OF ISSUANCE
APPLICANT
PROJECT
ACTION
09/16/2026 The Port of Los Angeles Harbor Breeze Cruise Dock
Replacement Project		 WQC Signed
09/08/2026 City of Los Angeles Bureau of Engineering Limited Geotechnical Exploratory Drilling for the LA River Fish Habitat
Pilot Project - Reach 8a		 WQC Made Active Under General Order
09/05/2026 Santa Clarita Valley
Water Agency		 Sand Canyon Sewer Relocation Project WQC Signed
09/04/2026 Los Angeles County
Public Works		 Bridge 3789 - Loma Alta Drive over
Rubio Wash - Pier Nose Repair (RGP 63)		 NOA Signed
08/20/2026 Safe Harbor Marinas Ventura Harbor – K Dock Project WQC Made Active Under General Order
08/20/2026 Southern California
Gas Company		 eTS 6563004 Line 225 Mile Post 67.54 Exposure Mitigation Project WQC Made Active Under General Order
08/17/2026 Los Angeles County Department of Beaches
and Harbors		 Sand Compatibility and Opportunistic Use Program WQC Signed
08/10/2026 Moorpark Property 67 LLC Moorpark 67/North Ranch Residential Development Project (WDR) WQC Signed
08/06/2026 Southern California
Gas Company		 Sullivan Canyon Lines 3003 and 407 Pipeline Protection and Maintenance WQC Signed
DATE OF ISSUANCE
APPLICANT
PROJECT
ACTION

Click here for past 401 Final Letters

Please contact Snejana Toneva at (213) 576-7159. Any petitions for the appeal of a Section 401 WQC action must be filed within 30 days of the date of its issuance.

* This list will be updated as documents become available (approximately 3 days from date of issuance).

401 Certification Contacts: