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
12/02/2025 City of Long Beach Skylinks Regional Stormwater
Capture Project		 Denial Signed
12/01/2025 Water Conservation Authority Azusa River Wilderness Park Entry Improvements Project WQC Made Active Under General Order
11/26/2025 Southern California Edison TD1271718/TD922676 Saugus Deteriorated Pole Replacement Project Signed WQC
11/25/2025 Boeing Susana Field Laboratory Emergency Maintenance Project STL-IV and
STL-IV Road Culverts		 Signed NOA
11/25/2025 City of Camarillo Public Works Department Pleasant Valley Road Bike Lanes Project Signed WQC
11/21/2025 City of Long Beach
Marine Bureau		 Berths 1 and 2 Dock
Replacement Project		 WQC Made Active Under General Order
11/21/2025 City of Long Beach –
Public Works		 Naples Vista Del Golfo Tieback and
Cap Repair Project		 WQC Made Active Under General Order
11/06/2025 Los Angeles County Metropolitan Transportation Authority Doran Street and Broadway/Brazil Grade Separation Project Signed WQC
11/06/2025 California Department
of Transportation		 State Route 1 Culvert Retrofit/Bridge Replacement Project Amendment Signed
11/04/2025 California State Parks Century Dam Maintenance Repairse WQC Made Active Under General Order
11/03/2025 Los Angeles County
Public Works		 The Old Road Over Santa Clara River and Southern Pacific Transportation Company Bridge Signed WQC
10/20/2025 City of Buenaventura Foster Park Fish Passage Project – Phase 1 Notch Restoration Signed NOA
10/20/2025 City of Los Angeles
Bureau of Engineering		 Donald C. Tillman Water Reclamation Plant LA River Bull Creek Water Sampling Handrail Project Signed WQC
10/14/2025 Los Angeles Department of
Water and Power		 Main Street Facility Storm
Drain Cleanup		 Signed WQC
10/09/2025 Stokes Canyon, LLC Farms at Malibu Valley Signed WQC
DATE OF ISSUANCE
APPLICANT
PROJECT
ACTION

Click here for past 401 Final Letters

Please contact Valerie Carrillo at (213) 576-6759. 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: