The 303(d) List of Impaired Water Bodies
The final 2006 303(d) list of impaired waterbodies has been adopted by State Board and approved by US EPA2006 CWA Section 303(d) List of Water Quality Limited Segments Approved by US EPA June 28, 2007 (PDF File)
Background:
| Section 303(d) of the 1972 federal Clean Water Act requires that states develop a list of water bodies that do not meet water quality standards, establish priority rankings for waters on the list, and develop action plans, called Total Maximum Daily Loads (TMDL), to improve water quality. The list of impaired water bodies is revised periodically (typically every two years). Read about the 303(d) listing policy here. 2006 List The State Water Resources Control Board compiled the 2006 303(d) list based on recommendations from the Regional Water Boards and information solicited from the public and other interested parties. On October 25, 2006, the State Board adopted the California 2006 Revised 303(d) List. On November 30, 2006, US EPA gave partial approval to California's 2006 Section 303(d). On June 28, 2007, the EPA gave a final approval to the list. US EPA's Partial Approval Letter US EPA's Review Document - Describes the rationale for US EPA's partial approval. |
 A surfer crosses the mouth of San Pedro Creek in Pacifica. Both San Pedro Creek and the Pacific Ocean at Pacifica State Beach are listed as impaired by coliform bacteria. (Photo by Steve Moore) |
Links:
Listing policy
State Board 2006 303(d) list page
Downloadable 2002 303(d) List GIS files and 303(d) List Information Tables (2006 GIS files not available at this time)
State Board 2002 303(d) list page
EPA 2002 Section 303(d) List Fact Sheet for California