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South Bay 2007 Annual Receiving Waters Monitoring Report for the South Bay Ocean Outfall (South Bay Water Reclamation Plant) 2007 City of San Diego Ocean Monitoring Program Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division THE CITY OF SAN DIEGO MAYOR JERRY SANDERS June 30, 2008 Mr. John Robertus Executive Officer Regional Water Quality Control Board San Diego Region 917 4 Sky Park Court, Suite 100 San Diego, CA 92123 Attention: POTW Compliance Unit Dear Sir: Enclosed is the 2008 Annual Receiving Waters Monitoring Report for NPDES Permit No. CA0109045, Order No. 2006-067, for the City ofSan Diego South Bay Water Reclamation Plant (SBWRP) discharge through the South Bay Ocean Outfall. This report contains data summaries and statistical analyses for the various portions of the ocean monitoring program, including oceanographic conditions, microbiology, sediment characteristics, macro benthic communities, demersal fishes and megabenthic invertebrates, and bioaccumulation of contaminants in fish tissues. These data are also presented in the International Boundary and Water Commission's annual report for discharge from the International Wastewater Treatment Plant (NPDES Permit No. CA0108928, OrderNo. 96-50). I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry ofthe person or persons who manage the system, or those persons directly responsible for gathering the information, I certify that the information submitted is, to the best ofmy knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Sincerely, /)w---r_ ALAN C. LANGWORTHY Deputy Metropolitan Wastewater Director ACL/ag Enclosure cc: Department of Environmental Health, County of San Diego U.S. Environmental Protection Agency, Region 9 Metropolitan Wastewater Department Library, City of San Diego Environmental Monitoring and Technical Services Division • Metropolitan Wastewater > DIVERSITY 2392 Kincaid Road • San Diego, CA 921 01·0811 CRINGSUSAll TOGETHER Tel (619) 758-2300 Fax (619) 758·2309 Annual Receiving Waters Monitoring Report for the South Bay Ocean Outfall (South Bay Water Reclamation Plant) 2007 Prepared by: City of San Diego Ocean Monitoring Program Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division June 2008 Table of Contents CREDITS ............................................................................................................................................... iii OCEAN MONITORING PROGRAM STAFF AND ACKNOWLEDGMENTS ..............................iv EXECUTIVE SUMMARY .......................................................................................................................1 CHAPTER 1. GENERAL INTRODUCTION .....................................................................................7 Regular Fixed Grid Monitoring.............................................................................................................8 Random Sample Regional Surveys ........................................................................................................8 Literature Cited ......................................................................................................................................9 CHAPTER 2. OCEANOGRAPHIC CONDITIONS ......................................................................... 11 Introduction .........................................................................................................................................11 Materials and Methods .......................................................................................................................11 Results and Discussion .......................................................................................................................13 Summary and Conclusions ..................................................................................................................21 Literature Cited ...................................................................................................................................21 CHAPTER 3. MICROBIOLOGY .......................................................................................................23 Introduction .........................................................................................................................................23 Materials and Methods .......................................................................................................................23 Results and Discussion .......................................................................................................................25 Summary and Conclusions ..................................................................................................................30 Literature Cited ...................................................................................................................................31 CHAPTER 4. SEDIMENT CHARACTERISTICS ............................................................................33 Introduction .........................................................................................................................................33 Materials and Methods .......................................................................................................................34 Results .................................................................................................................................................35 Summary and Conclusions...................................................................................................................41 Literature Cited ...................................................................................................................................42 CHAPTER 5. MACROBENTHIC COMMUNITIES ........................................................................45 Introduction .........................................................................................................................................45 Materials and Methods .......................................................................................................................45 Results and Discussion .......................................................................................................................46 Summary and Conclusions ..................................................................................................................55 Literature Cited ...................................................................................................................................56 CHAPTER 6. DEMERSAL FISHES and MEGABENTHIC INVERTEBRATES .........................59 Introduction .........................................................................................................................................59 Materials and Methods .......................................................................................................................59 Results .................................................................................................................................................60 Summary and Conclusions ..................................................................................................................67 Literature Cited ...................................................................................................................................69 CHAPTER 7. BIOACCUMULATION OF CONTAMINANTS IN FISH TISSUES ......................71 Introduction .........................................................................................................................................71 Materials and Methods .......................................................................................................................71 Results .................................................................................................................................................73 Summary and Conclusions...................................................................................................................76 Literature Cited ...................................................................................................................................79 i Table of Contents (continued) CHAPTER 8. SAN DIEGO REGIONAL SURVEY- SEDIMENT CHARACTERISTICS ............83 Introduction .........................................................................................................................................83 Materials and Methods .......................................................................................................................83 Results .................................................................................................................................................85 Summary and Conclusions...................................................................................................................92 Literature Cited ...................................................................................................................................93 CHAPTER 9. SAN DIEGO REGIONAL SURVEY- MACROBENTHIC COMMUNITIES ........95 Introduction
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