San Diego Region - Basin Plan Amendments
Introduction
Basin Plan amendments generally are developed to address issues identified during the Basin Plan Review or to incorporate Total Maximum Daily Loads (TMDLs ), which address impaired waters on the Clean Water Act, Section 303(d) List of Water Quality Limited Segments.
Basin Plans contain the water quality objectives, policies, regulations, and programs of implementation for the protection of surface and ground waters within each of the nine regional board boundaries. The plans describe the beneficial uses that each water body supports, including drinking, swimming, fishing, and protection of aquatic life. The Basin Plan is the basis for San Diego Water Board regulatory actions. The Plans are reviewed on a three-year cycle, during which new science, new water quality problems, and new or changed laws or regulatory approaches are considered. Based on regional priorities, the Basin Plans are amended to reflect specific changes and local concerns.
Basin Planning Process
Approved Basin Plan Amendments
- Non-Regulatory Updates to Chapters 2, 3, and 4 of the Basin Plan
Project Description: The updates contained in this Basin Plan amendment focus on Chapters 2,3, and 4 of the Basin Plan and include removing and/or updating outdated tables and text, identifying and incorporating applicable statewide regulations adopted by the State Water Board, adding hyperlinks to Resolutions, Plans and Policies, correcting typographical errors, and rearranging and renumbering tables. - Site-Specific Water Effect Ratios (WERs) for Chollas Creek Copper and Zinc Total Maximum Daily Loads
Project Description: The San Diego Water Board adopted Resolution No. R9-2017-0015 amending the San Diego Basin Plan to incorporate site specific WERs into water quality objectives for toxic pollutants and Total Maximum Daily Loads for Copper and Zinc in Chollas Creek. - Water Quality Objective in Groundwater for Nitrate and Incorporation of State Board's Onsite Wastewater Treatment Systems Policy (Resolution No. R9-2015-0008)
Project Description: Updated water quality objectives for nitrate in groundwater basins, that currently have numeric objectives, to 45 mg/L as NO3. This amendment also incorporated the OWTS Policy, added implementation measures for areas where surface and groundwater are interconnected and made some other non-substantive changes to the Basin Plan
- Los Penasquitos Lagoon Sediment TMDL (Resolution No. R9-2012-0033)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address sediment impairments in Los Penasquitos Lagoon
- Revised Project I - Twenty Beaches and Creeks in the San Diego Region (including Tecolote Creek) Indicator Bacteria TMDLs (Resolution No. R9-2010-0001)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address indicator bacteria impairments - Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay Indicator Bacteria TMDLs (Resolution No. R9-2008-0027)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address elevated levels of indicator bacteria impairments - Implementation Provisions for Indicator Bacteria Water Quality Objectives to Account for Loading from Natural Uncontrollable Sources within the Context of a Total Maximum Daily Load (also known as the Reference System and Anti-degradation Approach / Natural Sources Exclusion Approach Basin Plan Amendment) (Resolution No. R9-2008-0028)
Project Description: Allows the use of a reference system and anti-degradation approach or natural sources exclusion approach during implementation of indicator bacteria water quality objectives for the contact water recreation (REC-1) and noncontact water recreation (REC-2) beneficial uses - Chollas Creek Copper, Lead, and Zinc TMDLs (Resolution No. R9-2007-0043)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address impairments of Copper, Lead, and Zinc in Chollas Creek. Numeric targets for this TMDL are calculated based on a site-specific water effect ratio. - Update of Basin Plan (Resolution No. R9-2006-0029)
Project Description: Edits and reformats text, and updates graphics in the Basin Plan - Unnamed waterbodies and other corrections (Resolution R9-2005-0239)
Project Description: Revises Chapters 2, 3, 4, 5, and Appendix A of the Basin Plan to replace obsolete language, update tables, and specify new laws and regulations passed since 1994 - Compliance time schedule authorization (Resolution R9-2005-0238)
Project Description: Incorporates authorization for compliance time schedules in Waste Discharge Requirements that implement National Pollutant Discharge Elimination System regulations and federal Clean Water Act requirements issued by the San Diego Water Board - Rainbow Creek Nitrogen and Phosphorus TMDLs (Resolution No. R9-2005-0036)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address impairments of nitrogen and phosphorus in Rainbow Creek - Shelter Island Yacht Basin Dissolved Copper TMDL (Resolution No. R9-2005-0019)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address impairments of dissolved copper at the Shelter Island Yacht Basin - Chollas Creek Diazinon TMDL (Resolution No. R9-2002-0123)
Project Description: This TMDL establishes waste load allocations, load reductions, numeric targets, and an implementation plan to address impairments of the pesticide Diazinon in Chollas Creek - Designation of COLD and SPWN Beneficial Uses (Resolution No. 97-04)
Project Description: Modifies the beneficial use definition for SPWN in Chapter 2 of the Basin Plan. Also designates the COLD beneficial use to 53 water body segments, deletes the COLD beneficial use from 73 water body segments, and adds the SPWN beneficial use to 78 water body segments - An Exception to the Prohibition of Discharges of Recycled Wastewater to Surface Water Bodies Used for Municipal Water Supply (Resolution No. 96-30)
Project Description: Establishes an exception to the Prohibition of Discharges of Recycled Wastewater to Surface Water Bodies Used for Municipal Water Supply - Ground Water Quality Objectives for the Alluvial Aquifer in the Moosa (903.13) and Valley Center (903.14) Hydrologic Subareas (Resolution No. No. 95-48)
Project Description: Revises ground water quality objectives for a portion of the Lower San Luis Rey Hydrologic Area - Update of Basin Plan (Resolution No. 94-10)
Project Description: Incorporates substantial updates including, but not limited to: updated Chapter 1, added new beneficial use for Estuarine Habitat, revised beneficial use designations for statewide consistency, and designated beneficial uses for surface waters by water body instead of hydrologic units
PUBLIC DOCUMENTS
Documents associated with the adoption of the previously listed Basin Plan Amendments are available for review at the San Diego Water Board Office. To request a file review please contact the Regional Board receptionist at (619) 516-1990, or email rb9_records@waterboards.ca.gov
