California Code of Regulations › Title 23 - Waters › Division 4 - Regional Water Quality Control Boards › Chapter 1 - Water Quality Control Plans, Policies, and Guidelines › Article 5 - Central Valley Region › Section 3947 - Program to Control the Discharge of Diazinon and Chlorpyriphos into the Sacramento and Feather Rivers

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The Central Valley Regional Water Quality Control Board
					 adopted Resolution number R5-2003-0148 on October 16, 2003 and Revised under
					 Resolution number R5-2007-0034 a Program to Control the Discharge of Diazinon
					 and Chlorpyriphos into the Sacramento and Feather Rivers. The Amendment and its
					 revisions incorporate the following provisions into the Central Valley Regional
					 Water Quality Control Board's (Regional Board's) Water Quality Control Plan for
					 the Sacramento River and San Joaquin River Basins (Basin Plan):
Water Quality Objectives
Revises maximum diazinon concentration (1-hour average and
					 4-day average) in the Sacramento and Feather Rivers not to be exceeded more
					 than once every three years on the average.
Establishes a maximum chlorpyriphos concentration (1-hour
					 average and 4 day average) in the Sacramento and Feather Rivers not to be
					 exceeded more than once every three years.
Establishes wasteload and load allocations for diazinon and
					 chlorpyriphos.
Revises Implementation Provisions for Discharge into the
					 Sacramento and Feather Rivers to include diazinon and chlorpyriphos. Requires
					 compliance with diazinon and chlorpyriphos water quality objectives, wasteload
					 and load allocation by the date of U.S. Environmental Protection Agency
					 approval.
1. Requires Regional Board
				  review of the allocations and implementation provisions by June 30, 2013 and
				  every five years thereafter.
2.
				  States that the Regional Board will require any additional reductions in
				  Diazinon and chlorpyriphos necessary to account for additive or synergistic
				  effects or protect tributary waters.
3. Requires the submission of a management
				  plan to the Regional Board that describes the actions to be taken by diazinon
				  dischargers to meet the allocations and objectives.
4. Requires any waiver of waste discharge
				  requirements to be consistent with the provisions of the implementation
				  program.
5. Includes estimates of
				  the cost of the program for agriculture.
Contains requirements for a monitoring and reporting
					 program associated with any waiver of waste discharge requirements or waste
					 discharge requirements that addresses pesticide runoff in the Sacramento
					 Valley.
1. New
					 section summarizing amendments to Basin Plan filed 6-9-2004; amendments adopted
					 by the Central Valley Regional Water Quality Control Board 10-16-2003 by
					 Resolution No. R5-2003-0148. Approved by the State Water Resources Control
					 Board 4-22-2004 by Resolution No. 2004-0022; approved by OAL 6-8-2004 pursuant
					 to Government Code section
					 11353
					 (Register 2004, No. 24).
2. Amendment of section heading and section
					 summarizing changes to Basin Plan filed 5-12-2008; amendments adopted by the
					 Central Valley Regional Water Quality Control Board 5-3-2007 by Resolution No.
					 R5-2007-0034. Approved by State Water Resources Control Board 2-19-2008 by
					 Resolution No. 2008-0013; amendment approved by OAL 5-12-2008 pursuant to
					 Government Code section
					 11353
					 (Register 2008, No. 20).