Adopted TMDLs
TMDLs Adopted by Regional Board
A TMDL project may consist of a single water body and pollutant, or a combination of multiple water bodies and pollutant listings to restore impaired water bodies. Below is a list of adopted TMDL projects by the San Diego Water Board. Click on the links to view documents, notices and other materials related to each project.
| Adopted TMDLs | Adoption Date |
| Chollas Creek Diazinon TMDL | August 14, 2002 |
| Rainbow Creek Nitrogen and Phosphorus TMDLs | February 9, 2005 |
| Shelter Island Yacht Basin Dissolved Copper TMDL | February 9, 2005 |
| Chollas Creek Copper, Lead, and Zinc TMDLs | June 13, 2007 |
| Indicator Bacteria: Revised Project I - Twenty Beaches and Creeks in San Diego Region (including Tecolote Creek) | February 10, 2010 |
| Indicator Bacteria: Project II - Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay | June 11, 2008 |
| Los Peñasquitos Lagoon Sediment TMDL | June 13, 2012 |
| Approved Alternative Approach TMDLs | Approval Date |
| Loma Alta Slough TMDL Phosphorus | June 26, 2014 |
| Famosa Slough Nutrient TMDL | October 31, 2017 |
| Santa Margarita River Estuary TMDL | May 9, 2019 |
| San Mateo Creek Invasive Species TMDL | January 19, 2024 |
