California Code of Regulations
Title 23 - Waters
Division 4 - Regional Water Quality Control Boards
Chapter 1 - Water Quality Control Plans, Policies, and Guidelines
Article 4 - Los Angeles Region
Section 3939.34 - Subdivision of Santa Clara River Reach 4

Los Angeles Regional Water Quality Control Board (Los Angeles Water Board) Resolution No. R4-2007-018, adopted on November 1, 2007 by the Los Angeles Water Board and approved by the State Water Resources Control Board on October 21, 2008 under Resolution No. 2008-0076, modified the regulatory provisions of the Water Quality Control Plan for the Los Angeles Region (Basin Plan) by subdividing Reach 4 of the Santa Clara River as two separate Reaches: Reach 4A between the confluence of Piru Creek and the A Street Bridge in the City of Fillmore, and Reach 4B between the Blue Cut Gauging Station and the confluence of Piru Creek. This action is based on current understanding of the water quality differences between the western and eastern portions of Reach 4 due to the significant alterations to land uses and waste discharges within the Upper Santa Clara River watershed.

1. New section summarizing amendments to the basin plan filed 1-7-2009; amendments approved by State Water Resources Control Board Resolution No. 2008-0076 on 10-21-2008; amendments approved by OAL pursuant to Government Code section 11353 on 1-7-2009 (Register 2009, No. 2).