Regional Board 5 - Central Valley Region CATEGORY 4A Draft 2008 California 305(b)/303(d) Integrated Report
11 May 2009
2008 CALIFORNIA LIST OF WATER QUALITY LIMITED SEGMENTS
BEING ADDRESSED BY USEPA APPROVED TMDLS
 
 REGION  WATER BODY NAME WATER TYPE WATERSHED*
CALWATER / USGS HUC
  • POLLUTANT
    • POTENTIAL SOURCES
  • Relevant Notes
ESTIMATED AREA ASSESSED FIRST YEAR LISTED ADDRESSED BY** USEPA TMDL APPROVAL DATE

5

Bear Creek (Colusa County)

River & Stream

51320023  /  18020116
  • Mercury
    • Resource Extraction

15 Miles

2002

B

2007


5

Cache Creek, North Fork (below Indian Valley Reservoir, Lake County)

River & Stream

51340040  /  18020116
  • Mercury
    • Resource Extraction

14 Miles

2008

B

2007


5

Clear Lake

Lake & Reservoir

51352000  /  18020116
  • Mercury
    • Resource Extraction

40070 Acres

1988

B

2003
  • Nutrients
    • Agriculture
    • Erosion/Siltation
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

40070 Acres

1986

B

2007


5

Elk Grove Creek

River & Stream

51911000  /  18020109
  • Chlorpyrifos
    • Source Unknown

6.9 Miles

1998

B

2004
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

6.9 Miles

1998

B

2004


5

Harley Gulch

River & Stream

51332022  /  18020116
  • Mercury
    • Resource Extraction

6 Miles

1992

B

2007
  • All resource extraction sources are abandoned mines.


5

Walker Slough (partly in Delta Waterways, eastern portion)

River & Stream

53140000  /  18040002
  • Pathogens
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

2.3 Miles

2002

B

2008