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
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
10/03/2025 HGS, LLC doing business as RES Environmental Operating Company, LLC Curtis I & II Mitigation Sites for the Bouquet Canyon Residential Development Project Signed WQC
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
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: