303(d) Impaired Water Bodies / 303(d) List

• Perchlorate Documentation
• Annual Water Quality Awards
• Chromium
• Section 401 Water Quality Certification
• Standard Urban Storm Water Mitigation Plan (SUSMP)
• Beach Water Quality
• Killer Algae

2008 - 2010 - Integrated Report and 303(d) List (available at the State Board site)

2006 - 303(d) List (available at the State Board site)

2002 - 303(d) List (available at the State Board site)

1998 - 303(d) List

• The 1998 California 303(d) list of Impaired Waters for the Los Angeles Region.
  • pdf format
  • xls format
  • dbf format
  • dbt format
    
    
• Also, see our Watershed Management Initiative for additional information on Impaired Waterbodies.
  
  
• The 1998 California 303(d) list of Impaired Waters for all of California.
  
  
• GIS (ArcView shapefiles) of the 1998 California 303(d) listed water bodies (Introduction).
  
  GIS zipped file:
  • Region 4 (Los Angeles)