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
04/09/2026 LA Railroad 93, LLC Shadowbox Studios Project WQC Signed
03/18/2026 Southern California
Gas Company		 California Gas Company Pipeline Safety Enhancement Program Line 1004 Phase 1B Pipeline Replacement Project WDR Signed
03/17/2026 Las Virgenes Municipal
Water District		 AWPF Pure Water Project
Las Virgenes-Triunfo		 WQC Signed
03/11/2026 Bouquet Canyon
Project Owner, LLC		 Bouquet Canyon Project Amendment Signed
03/02/2026 Tri Pointe Homes, Inc. Skyline Ranch Debris Basins Amendment Signed
02/13/2026 The Ventura County Public Works Agency, Roads & Transportation Foothill Road Culvert Repair Project WQC Made Active Under General Order
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: