Chollas Creek Dissolved Metals TMDL Implementation Plan
The Chollas Creek Dissolved Metals Total Maximum Daily Loads (TMDLs) Implementation Plan Stakeholders Web site
serves as a resource for interested community members, agencies and other stakeholders. This site provides an opportunity
to learn about the TMDL process, review draft documents, check on project status and contact information to provide input and
comments. (Note: for information regarding these TMDLs, please see "TMDLs" section below.)
The Chollas Creek Dissolved Metals TMDLs Implementation Plan (hereafter referred to as "Implementation Plan") is under
development by the City of the San Diego and the other agencies that have been named in the TMDLs. These include: the Cities
of La Mesa and Lemon Grove, the County of San Diego, U.S. Navy, the Port of San Diego, and Caltrans. The City of San Diego
Storm Water Department is leading the effort to prepare the Implementation Plan for the Chollas Creek Dissolved Metals Total
Maximum Daily Loads (TMDLs).
The purpose of the Implementation Plan is to provide the basis and strategy to reduce dissolved metals loading and other
constituents of concern in storm water and urban runoff that may be impacting the beneficial uses of the Creek. The Implementation
Plan will identify projects to be implemented in the first 5-year phase of the program to meet these goals. The Implementation Plan
is tentatively slated to be submitted to the San Diego Regional Water Quality Control Board in early October 2009, and begin
implementation by October 22, 2009.
Stakeholder Participation Opportunities
The public is invited to participate in the planning process. Agenda and documents relating to the meetings will be posted as appropriate.
The next stakeholder meeting will be held the following date and location:
May 18, 2009
Time: 10 a.m. - 12 noon
Valencia Park/Malcolm X Branch Library & Performing Arts Center
Seminar A & B Room
5148 Market St.
San Diego, CA 92114-2209
Meeting Agenda (PDF: 8K)
2nd Draft Implementation Plan
Public Comments on the 2nd Draft Chollas Creek Dissolved Metals Implementation Plan:
The responsible agencies in the TMDL are requesting public comments on the above 2nd Draft Implementation Plan between May 11, 2009 and May 25, 2009. Please
submit any comments via email to Drew Kleis at the City of San Diego Storm Water Department at akleis@sandiego.gov or call 858-541-4329.
Previous Stakeholder Meeting Summaries and Information
If you would like to be notified of future meetings and updates, or if you have any questions, please contact Tim Graham, Senior Public Information Officer at (858) 451-4333 or via email at tgraham@sandiego.gov.
Additional Information
Chollas Creek Watershed
The Chollas Creek Watershed is located south and east of downtown San Diego in a highly urbanized portion
of San Diego County. The watershed drains approximately 30 square miles via two main tributaries, the North
Fork and the South Fork, and discharges into San Diego Bay. Except for the downstream 1.2 mile tidal prism area,
Chollas Creek is an ephemeral stream which usually only flows during rainy conditions. The map below highlights the Chollas Creek
Watershed boundaries, jurisdictional boundaries of the responsible agencies, and the City of San Diego's community plan areas.
TMDLs
A TMDL is a "pollution budget" for an impaired waterbody, such as Chollas Creek. A TMDL defines the maximum amount of a
pollutant the waterbody can safely receive while meeting the water quality objectives identified in the San Diego Basin Plan.
There are four adopted TMDLs for Chollas Creek: the pesticide (diazinon) TMDL, the three dissolved metals TMDLs (for copper, lead and zinc).
In addition, a draft TMDL for indicator bacteria is currently being revised. This Implementation Plan is designed to meet the requirements
of the metals and bacteria TMDLs over the 20 year allowed implementation period. The Implementation Plan uses an integrated approach to achieve this goal.
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