Regional Board 3 - Central Coast Region CATEGORY 4A Draft 2008 California 305(b)/303(d) Integrated Report
2008 CALIFORNIA LIST OF WATER QUALITY LIMITED SEGMENTS
BEING ADDRESSED BY USEPA APPROVED TMDLS
 
Category 4A Criteria: 1) A water segment where ALL its 303(d) listings are being addressed; and 2) at least one of those listings is being addressed by a USEPA approved TMDL.
* USGS HUC = US Geological Survey Hydrologic Unit Code. Calwater = State Water Resources Control Board hydrological subunit area or even smaller planning watershed.
** "Addressed By" is defined as: B = Being addressed by USEPA approved TMDL and C = Being addressed by action(s) other than a TMDL
 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

3
Bean Creek
River & Stream
30412041  /  1.806e+0
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Resource Extraction
    • Road Construction
8.9 Miles
2002
B
2004

3
Bear Creek(Santa Cruz County)
River & Stream
30412030  /  18060001
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture
6.3 Miles
2002
B
2004

3
Boulder Creek
River & Stream
30412020  /  1.806e+0
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture
    • Specialty Crop Production
7.6 Miles
2002
B
2004

3
Chorro Creek
River & Stream
31022012  /  18060006
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers
14 Miles
2008
B
2004
  • Fecal Coliform
    • Source Unknown
14 Miles
2002
B
2004
  • Nutrients
    • Agriculture
    • Major Municipal Point Source-dry and/or wet weather discharge
14 Miles
1998
B
2007
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-storm runoff
    • Channel Erosion
    • Channelization
    • Construction/Land Development
    • Erosion/Siltation
    • Golf course activities
    • Hydromodification
    • Irrigated Crop Production
    • Natural Sources
    • Nonpoint Source
    • Range Grazing-Riparian and/or Upland
    • Range Grazing-Upland
    • Resource Extraction
    • Road Construction
    • Streambank Modification/Destabilization
14 Miles
1990
B
2004

3
Clear Creek (San Benito County)
River & Stream
30550013  /  18060002
  • Mercury
    • Resource Extraction
9.6 Miles
1998
B
2004
  • For 2006, mercury was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.

3
Dairy Creek
River & Stream
31022010  /  18060006
  • Fecal Coliform
    • Confined Animal Feeding Operations (NPS)
4.5 Miles
2002
B
2004
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.
  • Low Dissolved Oxygen
    • Source Unknown
4.5 Miles
2002
B
2004

3
Fall Creek
River & Stream
30412022  /  1.806e+0
  • Sedimentation/Siltation
    • Erosion/Siltation
    • Habitat Modification
    • Nonpoint Source
    • Road Construction
5.1 Miles
2002
B
2004

3
Gallighan Slough
River & Stream
30510030  /  18060002
  • Pathogens
    • Source Unknown
3 Miles
2008
B
2007

3
Hanson Slough
River & Stream
30510030  /  18060002
  • Pathogens
    • Source Unknown
1.1 Miles
2008
B
2007

3
Hernandez Reservoir
Lake & Reservoir
30550016  /  18060002
  • Mercury
    • Subsurface Mining
626 Acres
1998
B
2004
  • For 2006, mercury was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.

3
Kings Creek
River & Stream
30412011  /  1.806e+0
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture
4.4 Miles
2002
B
2004

3
Rider Creek
River & Stream
30510010  /  18060002
  • Sedimentation/Siltation
    • Agriculture
    • Construction/Land Development
    • Silviculture
1.8 Miles
1992
B
2007

3
Shingle Mill Creek
River & Stream
30412022  /  18060001
  • Nutrients
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
1.6 Miles
1994
B
2003
  • Sedimentation/Siltation
    • Construction/Land Development
    • Nonpoint Source
1.6 Miles
1992
B
2003