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
09/15/2025 California Department
of Transportation		 Post-Palisades Fire Repairs on Pacific Coast Highway (PCH) (RGP 63) Signed NOA
09/12/2025 Southern California
Gas Company		 eTS 7610301 Line 406 MP 26.44 and
MP 26.49 Pipeline Replacement Project		 WQC Made Active Under General Order
08/25/2025 California Department of Parks and Recreation Stokes Creek Culvert Removal &
New Bridge		 Signed WQC
08/13/2025 City of Carson Sepulveda Boulevard over
Dominguez Channel		 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: