Appendix
B:
Regional Water Quality Control Board's 1998 303(d) List and
TMDL Priority Schedule for Water Bodies that Drain into the
Sanctuary
Appendix
A. Water Quality Protection
Program Committee
Members Appendix
B. TMDL Schedule for Impaired
Waters in Sanctuary
Watersheds. Appendix
C. Existing Laws and Programs
Related to Agricultural Nonpoint
Sources San Gregorio Creek Sedimentation/siltation Nonpoint source 16 miles 2000 - 2005 Pescadero Creek Sedimentation/siltation Nonpoint source 21 miles 2000 - 2005 Waddell Creek, East Branch Nutrients Municipal point sources 3 miles 04/01 - 04/05 San Lorenzo River Nutrients Septage disposal; nonpoint source 25 miles 04/93-04/00 Pathogens Urban runoff/storm sewers; septage
disposal 25 miles 1999 - 2001 Sedimentation/siltation Silviculture; construction/land
development; land development; urban
runoff/ storm sewers 25 miles 12/98 - 04/00 San Lorenzo River Estuary Pathogens Urban runoff/storm sewers; natural
sources 20 acres 04/99 - 04/01 Sedimentation/siltation Hydromodification 20 acres 01/98 - 04/00 Schwan Lake Nutrients Nonpoint source 32 acres 04/06 - 04/11 Pathogens Urban runoff/storm sewers; natural
sources 32 acres 04/06 - 04/11 Carbonera Creek Nutrients Nonpoint source 10 miles 04/93 - 04/00 Pathogens Urban runoff/storm sewers; nonpoint
source 10 miles 04/99 - 04/01 Sedimentation/siltation Construction/land development; nonpoint
source 10 miles 01/98 - 04/00 Clear Creek Mercury Resource extraction 2 miles 01/98 - 04/03 Lompico Creek Nutrients Septage disposal 5 miles 04/93 - 04/00 Pathogens Septage disposal; natural sources;
nonpoint source 5 miles 04/99 - 04/01 Sedimentation/siltation Construction/land development; natural
sources 5 miles 01/98 - 04/00 Shingle Mill Creek Nutrients Septage disposal 2 miles 01/98 - 04/01 Sedimentation/siltation Construction/land development; nonpoint
source 2 miles 01/98 - 04/01 Valencia Creek Pathogens Agriculture; septage disposal 7 miles 04/06 - 04/11 Sedimentation/siltation Agriculture; construction/land
development 7 miles 04/01 - 04/05 Soquel Lagoon Nutrients Septage disposal; nonpoint source 2 acres 04/03 - 04/07 Pathogens Urban runoff/storm sewers; natural
sources; nonpoint source 2 acres 04/03 - 04/07 Sedimentation/siltation Construction/land development 2 acres 04/01 - 04/05 Aptos Creek Pathogens Urban runoff/storm sewers 4 miles 04/05 - 04/11 Sedimentation/siltation Disturbed sites (land development);
channel erosion 4 miles 01/01 - 04/01 Rider Gulch Creek Sedimentation/siltation Agriculture; silviculture;
construction/land development 2 miles 01/98 - 04/01 Watsonville Slough Metals Agriculture; urban runoff/storm
sewers 300 acres 01/99 - 04/03 Oil and grease Urban runoff/storm sewers; nonpoint
source 300 acres 01/99 - 04/03 Pathogens Urban runoff/storm sewers; source
unknown; nonpoint source 300 acres 01/99 - 04/03 Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agricultural
return flows; nonpoint source 300 acres 01/99 - 04/03 Sedimentation/siltation Agriculture; irrigated crop production;
agriculture - storm runoff; nonpoint
source 300 acres 01/98 - 04/01 Pajaro River Nutrients Agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
subsurface drainage; agriculture -
irrigation tailwater; agricultural return
flows; urban runoff/storm sewers;
wastewater - land disposal;
channelization; removal of riparia 49 miles 01/98 - 04/01 Sedimentation/siltation Agriculture; irrigated crop production;
range land; agriculture - storm runoff;
resource extraction; surface mining;
hydromodification; channelization; habitat
modification; removal of riparian
vegetation; streambank modification/
destabilization; channel 49 miles 01/98 - 04/01 L lagas Creek Nutrients Municipal point sources; agriculture;
irrigated crop production; pasture land;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; urban runoff/storm sewers; habitat
modification; nonpoint source; point
source 22 miles 01/98 - 04/01 Sedimentation/siltation Agriculture; hydro- modification;
habitat modification 22 miles 01/98 - 04/01 San Benito River Sedimentation/siltation Agriculture; resource extraction;
nonpoint source 86 miles 01/98 - 04/01 Moss Landing Harbor Pathogens Agriculture; nonpoint source; boat
discharges/vessel wastes 40 acres 04/05 - 04/09 Pesticides Agriculture; irrigated crop production;
specialty crop production 160 acres 04/05 - 04/09 Sedimentation/siltation Agriculture; irrigated crop production;
agriculture - storm runoff;
hydromodification; dredging
(hydromodification); channel erosion;
erosion/ siltation; nonpoint source 160 acres 04/05 - 04/09 Elkhorn Slough Pathogens Natural sources; nonpoint source 500 acres 04/05 - 04/09 Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agricultural
return flows; contaminated sediments;
erosion/siltation; nonpoint source 500 acres 04/05 - 04/09 Sedimentation/siltation Agriculture; irrigated crop production;
agriculture - storm runoff; channel
erosion; nonpoint source 50 acres 04/05 - 04/09 Hernandez Reservoir Mercury Subsurface mining 619 acres 01/98 - 04/03 Moro Cojo Slough Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agricultural
return flows; nonpoint source 345 acres 01/98 - 04/11 Sedimentation/siltation Agriculture; irrigated crop production;
agriculture - storm runoff;
construction/land development; nonpoint
source 345 acres 01/98 - 04/11 Tembladero Slough Nutrients Agriculture; irrigated crop production;
agriculture - storm runoff; agricultural
return flows; nonpoint source 150 acres 01/98 - 04/03 Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agricultural
return flows; nonpoint source 150 acres 01/98 - 04/03 Old Salinas River Estuary Nutrients Agriculture; irrigated crop production;
agricultural return flows; nonpoint
source 50 acres 01/98 - 04/03 Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; nonpoint source 50 acres 01/98 - 04/03 Salinas River Nutrients Agriculture 50 miles 01/98 - 04/03 Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; nonpoint source 50 miles 01/98 - 04/03 Salinity/TDS/chlorides Agriculture 50 miles 01/98 - 04/03 Sedimentation/siltation Agriculture; irrigated crop production;
range land; agriculture - storm runoff;
road; construction; land development;
channel erosion; nonpoint source 50 miles 01/98 - 04/01 Salinas Reclamation Canal Pesticides Minor industrial point source;
agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; nonpoint source 20 miles 01/98 - 04/05 Priority organics Minor industrial point source;
agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; urban runoff/storm sewers; source
unknown; nonpoint source 20 miles 01/98 - 04/05 Salinas River Lagoon (North) Nutrients Nonpoint source 75 acres 01/98 - 04/03 Pesticides Agriculture 75 acres 01/98 - 04/03 Sedimentation/siltation Nonpoint source 75 acres 01/98 - 04/01 Salinas River Refuge Lagoon (South) Nutrients Agriculture 163 acres 01/98 - 04/01 Pesticides Agriculture 163 acres 01/98 - 04/03 Salinity/TDS/chlorides Agriculture 163 acres 01/98 - 04/03 Blanco Drain Pesticides Agriculture; irrigated crop production;
agriculture - storm runoff; agriculture -
irrigation tailwater; agricultural return
flows; nonpoint source 8 miles 01/98 - 04/05 Espinosa Slough Nutrients Agriculture; storm sewers 320 acres 01/98 - 04/03 Pesticides Agriculture; urban runoff/storm
sewers 320 acres 01/98 - 04/03 Priority organics Nonpoint source 320 acres 01/98 - 04/03 Monterey Harbor Metals Railroad slag pile 74 acres 01/98 - 04/03 Unknown toxicity Source unknown 74 acres 01/98 - 04/11 Monterey Bay South Metals Surface Mining 10 miles 01/98 - 04/11 Pesticides Agriculture 10 miles 01/98 - 04/11 Nacimiento Reservoir Metals Subsurface mining; natural sources 5370 acres 09/97 - 04/00 Las Tablas Creek Metals Surface Mining 13 miles 09/97 - 04/00 Las Tablas Creek, North Fork Metals Surface Mining 5 miles 09/97 - 04/00 Las Tablas Creek, South Fork Metals Surface Mining 4 miles 09/97 - 04/00
* Reflects start and end dates for the TMDL
assessment (does not include implementation)
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Last modified on: September 1st 2004