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
10/20/2025 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
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
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: