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 3939.29 - A Total Maximum Daily Load for Trash in Legg Lake

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Los Angeles Regional Water Quality Control Board (Los
					 Angeles Water Board) Resolution No. R4-2007-010, adopted on June 7, 2007 by the
					 Los Angeles Board, modified the regulatory provisions of the Water Quality
					 Control Plan for the Los Angeles Region by:
(1) revising the Table of Contents,
(2) adding introductory text for Chapter 7
				  (Total Maximum Daily Loads), and
(3) establishing a Total Maximum Daily Load
				  for trash in Legg Lake.
The amendment establishes the numeric target with which
					 wasteload allocations for point source discharges and load allocations for
					 nonpoint source discharges are calculated. Wasteload allocations will be
					 implemented through storm water permits via the authority vested in the
					 Executive Officer by section
					 13267 of the Porter-Cologne Water
					 Quality Control Act (Water Code section
					 13000 et seq.).
					 Load allocations shall be implemented through either (1) a conditional waiver
					 from waste discharge requirements, or (2) an alternative program implemented
					 through waste discharge requirements or an individual waiver or another
					 appropriate order of the Los Angeles Water Board.
The Regional Board adopted Resolution No. R19-005 on June
					 13, 2019 revising the Legg Lake Trash TMDL in light of the "Amendment to the
					 Water Quality Control Plan for Ocean Waters of California to Control Trash" and
					 "Part 1 Trash Provisions of the Water Quality Control Plan for Inland Surface
					 Waters, Enclosed Bays, and Estuaries," known as the statewide Trash Amendments.
					 The Los Angeles Water Board determined that the implementation requirements in
					 the existing Legg Lake Trash TMDL should not be aligned with the scope of the
					 statewide Trash Amendments because there is a potential for non-priority land
					 use areas to discharge significant amounts of trash. Although the Minimum
					 Frequency of Assessment and Collection (MFAC) program downstream appears to be
					 effective in collecting trash, currently all catch basins in every land use
					 area, including non-priority land use areas, within the entire area subject to
					 the Legg Lake Trash TMDL are already being addressed by storm water discharges
					 via full capture systems, partial capture systems, or institutional controls.
					 As a result, it is not clear whether the MFAC program would be effective in
					 addressing trash if storm water discharges in non-priority land use areas were
					 no longer required to install full capture systems in catch basins or implement
					 other lawful measures to comply with wasteload allocations. Therefore, storm
					 water dischargers assigned wasteload allocations will still be required to
					 address point sources of trash in all land use areas.
The revised TMDL removes the waivers of Waste Discharge
					 Requirements to regulate nonpoint sources of trash and replaces the requirement
					 with language referencing the statewide Policy for Implementation and
					 Enforcement of the Nonpoint Source Pollution Control Program. The revised TMDL
					 also separates requirements for the California Department of Transportation
					 from requirements for other MS4 permittees, consistent with the statewide Trash
					 Amendments.
1. New
					 section summarizing amendments to Basin Plan filed 2-5-2008; amendments adopted
					 by the Los Angeles Regional Water Quality Control Board 6-7-2007 pursuant to
					 Resolution No. R4-2007-010. Approved by the State Water Resources Control Board
					 12-4-2007 pursuant to Resolution No. 2007-0074; approved by OAL 2-5-2008
					 pursuant to Government Code section
					 11353
					 (Register 2008, No. 6).
2. Amendment of section summarizing basin
					 plan filed 10-25-2021; amendments approved by State Water Resources Control
					 Board Resolution No. 2020-0002 on 1-21-2020; amendments approved by OAL
					 pursuant to Government Code section
					 11353 on
					 10-25-2021 (Register 2021, No. 44).