Annual Receiving Waters Monitoring Report
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Annual Receiving Waters Monitoring Report for the City of San Diego South Bay Water Reclamation Plant Discharge to the Pacific Ocean through the South Bay Ocean Outfall 2002 City of San Diego Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division Ocean Monitoring Program July 2003 July 1, 2003 THE CITY OF SAN DIEGO Ivfr. Jolm Robertus Executive Officer Regional Water Quality Control Board San Diego Region 9174 Sky Park Court, Suite 100 San Diego, CA 92123 Attention: POTW Compliance Unit Dear Sir: Enclosed is the 2002 Annual Receiving Waters Monitoring Report for NPDES Permit No. CAO 109045, Order No. 2000-129, for the City ofSan Diego South Bay Water Reclamation Plant (SBWRP) discharge to the Pacific Ocean through the South Bay Ocean Outfall. This report contains data summaries and statistical analyse~ for the various portions ofthe ocean monitoring program, including oceanographic conditions, microbiology, sediment characteristics, benthic infauna, demersal fishes and megabenthic invertebrates, and bioaccumulation ofcontaminants 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. CAOI 08928, Order No. 96-50). I certify under penahy of la\Y 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 directty responsible for gathering the informaticn, I certify that the information submitted is, to the best ofmy knowledge and belief, tme, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility offine and imprisonment for knowing violations. Sincerely, ~~ - ~ ALAN C. LANGWORTHY Deputy Metropolitan Wastewater Director dp Enclosure cc: Department of Health Services, San Diego County U.S. Erwironmemal Protection Agency, Region 9 :~; Metropolitan Wastewater Department Library, City of San Diego ~ Environmental Monitoring and Technical Services Division • Metropolitan Wastewater DIVERS IT Y 4918 North Harbor Drive, Suite 201 • Son Diego, CA 92106·2359 ~lr-G5 ~ oi,(L 10GET~.. Tel (619) 758·2300 Fax (619) 758·2309 The City of San Diego Annual Receiving Waters Monitoring Report for the South Bay Water Reclamation Plant Discharge to the Pacific Ocean through the South Bay Ocean Outfall 2002 Prepared by: City of San Diego Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division Ocean Monitoring Program July 2003 Table of Contents CREDITS & ACKNOWLEDGMENTS ..................................................................................... iii OCEAN MONITORING PROGRAM STAFF ........................................................................... iv EXECUTIVE SUMMARY ........................................................................................................... 1 CHAPTER 1. GENERAL INTRODUCTION ............................................................................. 5 SBOO Monitoring ..................................................................................................................... 5 Random Sample Regional Surveys ............................................................................................ 6 Literature Cited ......................................................................................................................... 7 CHAPTER 2. OCEANOGRAPHIC CONDITIONS ................................................................. 9 Introduction .............................................................................................................................. 9 Materials and Methods ............................................................................................................. 9 Results and Discussion ........................................................................................................... 12 Summary and Conclusions ...................................................................................................... 17 Literature Cited ....................................................................................................................... 19 CHAPTER 3. MICROBIOLOGY ............................................................................................. 21 Introduction ............................................................................................................................ 21 Materials and Methods ........................................................................................................... 21 Results and Discussion ........................................................................................................... 23 Summary and Conclusions ...................................................................................................... 35 Literature Cited ....................................................................................................................... 35 CHAPTER 4. SEDIMENT CHARACTERISTICS .................................................................. 37 Introduction ............................................................................................................................ 37 Materials and Methods ........................................................................................................... 39 Results and Discussion ........................................................................................................... 40 Summary and Conclusions ...................................................................................................... 47 Literature Cited ....................................................................................................................... 48 CHAPTER 5. BENTHIC INFAUNA ......................................................................................... 51 Introduction ............................................................................................................................ 51 Materials and Methods ........................................................................................................... 51 Results and Discussion ........................................................................................................... 54 Summary and Conclusions ...................................................................................................... 63 Literature Cited ....................................................................................................................... 64 CHAPTER 6. DEMERSAL FISHES & MEGABENTHIC INVERTEBRATES ..................... 67 Introduction ............................................................................................................................ 67 Materials and Methods ........................................................................................................... 67 Results and Discussion ........................................................................................................... 69 Summary and Conclusions ...................................................................................................... 79 Literature Cited ....................................................................................................................... 80 CHAPTER 7. BIOACCUMULATION OF CONTAMINANTS IN FISH TISSUES ............... 83 Introduction ............................................................................................................................ 83 Materials and Methods ........................................................................................................... 83 Results .................................................................................................................................... 86 Summary and Conclusions ...................................................................................................... 90 Literature Cited ....................................................................................................................... 93 i Table of Contents continued APPENDICES Appendix A: Supporting Data - Sediment Characteristics ...................................................... 95 Appendix B: Supporting Data - Demersal Fishes & Megabenthic Invertebrates ................... 101 Appendix C: Supporting Data - Bioaccumulation of Contaminants in Fish Tissues ................. 109 Appendix D: Random Sample Survey for 2002 - Sediment Quality ....................................... 147 Appendix E: Random Sample Survey for 2002 - Benthic Infauna ........................................ 161 Appendix F: Coastal Remote Sensing of the San Diego/Tijuana Region ............................... 181 ii Credits and Acknowledgments Technical Editor Dean Pasko Production Editors Judes Brooks Rhonda Nesby Graphics Dawn Olson Diane O’Donohue Judes Brooks Executive Summary Dean Pasko Chapter 1. General Introduction Dean Pasko Chapter 2. Water Quality Dawn Olson Diane O’Donohue Chapter 3. Sediment Characteristics Daniel Ituarte Chapter 4. Benthic Infauna Eric Nestler Chapter 5. Demersal Fishes & Megabenthic Invertebrates Ami Groce Robin Gartman Chapter 6. Bioaccumulation of Contaminants in Fish Tissues Ami Groce Acknowledgments:We are grateful to the personnel of the City’s Marine Biology