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Annual Receiving Waters Monitoring Report Point Loma Ocean Outfall 2002

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Annual Receiving Waters Monitoring Report Point Loma Ocean Outfall 2002 THE CITY OF SAN DIEGO Annual Receiving Waters Monitoring Report for the Point Loma Ocean Outfall 2002 Ocean Monitoring Program Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division THE CITY OF SAN DIEGO July 1, 2003 Mr. John Robertus Executive Officer Regional Water Quality Control Board San Diego Region 9771 Clairemont Mesa Blvd. Suite B San Diego, CA 92124 Attention: POTW Compliance Unit Dear Sir: Enclosed is the 2002 Annual Receiving Waters Monitoring Report for NPDES Permit No. CAOl 07409, Order No. R9-2002-0025 for the City of San Diego Point Lorna Wastewater Treatment Plant, Point Lorna Ocean Outfall. This report contains data summaries and statistical analyses for the various portions ofthe ocean monitoring program, including oceanographic conditions, microbiology, sediment characteristics, benthic infauna, demersal fishes and megabenthic invertebrates, and bioaccumulation of contaminants in fish tissues. 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 of the person or persons who manage the system, or those persons directly responsible for gathering 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 offine and imprisonment for knowing violations. Sincerely, ~r.~ ALAN C. LANGWORTHY Deputy Metropolitan Wastewater Director dp Enclosure cc: U.S. Environmental Protection Agency, Region 9 State Water Resources Control Board Department of Health Services, San Diego County '~. ,~ Environmental Monitoring and Technical Services Division • Metropolitan Wastewater ¥ ..f 4918 North Harbor Drive, Suite 201 • Son Diego, CA 921 06·2359 DIVERSI TY l'f:H..~I.."• "-1. IOCE-"1-6' Tel (619) 758·2300 Fox (619) 758·2309 The City of San Diego Annual Receiving Waters Monitoring Report for the Point Loma Ocean Outfall 2002 Prepared by: The City of San Diego Ocean Monitoring Program Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division June 2003 Table of Contents CREDITS & ACKNOWLEDGMENTS.............................................................................................. iii OCEAN MONITORING PROGRAM STAFF .................................................................................. iv EXECUTIVE SUMMARY .....................................................................................................................1 CHAPTER 1. GENERAL INTRODUCTION ....................................................................................3 Introduction ..........................................................................................................................................3 Background ..........................................................................................................................................3 Receiving Waters Monitoring .............................................................................................................3 Literature Cited ....................................................................................................................................4 CHAPTER 2. OCEANOGRAPHIC CONDITIONS ........................................................................7 Introduction ..........................................................................................................................................7 Materials and Methods .......................................................................................................................7 Results and Discussion .......................................................................................................................9 Summary and Conclusions ...............................................................................................................15 Literature Cited .................................................................................................................................. 17 CHAPTER 3. MICROBIOLOGY ...................................................................................................... 19 Introduction ........................................................................................................................................19 Materials and Methods ..................................................................................................................... 19 Results and Discussion ..................................................................................................................... 21 Summary and Conclusions ...............................................................................................................29 Literature Cited .................................................................................................................................. 31 CHAPTER 4. SEDIMENT CHARACTERISTICS ......................................................................... 33 Introduction ........................................................................................................................................33 Materials and Methods ..................................................................................................................... 33 Results and Discussion ..................................................................................................................... 35 Summary and Conclusions ...............................................................................................................41 Literature Cited .................................................................................................................................. 43 CHAPTER 5. BENTHIC INFAUNA ................................................................................................. 45 Introduction ........................................................................................................................................45 Materials and Methods ..................................................................................................................... 45 Results and Discussion ..................................................................................................................... 48 Summary and Conclusions ...............................................................................................................59 Literature Cited .................................................................................................................................. 62 CHAPTER 6. DEMERSAL FISHES & MEGABENTHIC INVERTEBRATES........................ 65 Introduction ........................................................................................................................................65 Materials and Methods ..................................................................................................................... 65 Results ................................................................................................................................................. 67 Summary and Conclusions ...............................................................................................................72 Literature Cited .................................................................................................................................. 73 CHAPTER 7. BIOACCUMULATION OF CONTAMINANTS IN FISH TISSUES ................75 Introduction ........................................................................................................................................75 Materials and Methods ..................................................................................................................... 75 Results ................................................................................................................................................. 77 Summary and Conclusions ...............................................................................................................78 Literature Cited .................................................................................................................................. 86 i Table of Contents continued APPENDICES Appendix A: Supporting Data - Sediment Characteristics Appendix B: Supporting Data - Benthic Infauna Appendix C: Supporting Data - Demersal Fishes & Megabenthic Invertebrates Appendix D: Supporting Data - Bioaccumulation of Contaminants in Fish Tissues Appendix E: Coastal Remote Sensing of the San Diego/Tijuana Region Appendix F: Stability of the Point Loma Kelp Forest ii Credits and Acknowledgments CITY OF SAN DIEGO ANNUAL RECEIVINGWATERS MONITORING REPORT FOR THE POINT LOMA OCEAN OUTFALL 2002 Technical Editor Dean Pasko Production Editors Judes Brooks Dean Pasko Graphics Dawn Olson Diane O’Donohue Executive Summary Dean Pasko Chapter 1. General Introduction Dean Pasko Chapter 2. Oceanographic Conditions Dawn Olson Chapter 3. Microbiology Dawn Olson Diane O’Donohue Chapter 4. Sediment Characteristics Daniel Ituarte Chapter 5. Benthic Infauna Eric Nestler Chapter 6. Demersal Fishes & Megabenthic Invertebrates Ami Groce Robin Gartman Chapter 7. Bioaccumulation of Contaminants in Fish Tissues Ami Groce iii Acknowledgments: We are grateful to the personnel of the
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