TABLE OF CONTENTS 



Page 



LIST OF TABLES iv 



LIST OF FIGURES v 



EXECUTTVE SUMMARY vii 



1.0 INTRODUCTION 1 



2.0 METHODS 6 



2.1 Bathymetry and Navigation 6 



2.2 REMOTS® Sediment-Profile Photography 6 



2.3 Selection of Alternate Reference Areas 8 



2.3.1 Grain Size Analysis 10 



2.3.2 Total Organic Carbon 10 



2.3.3 Metals Analyses 11 



2.3.4 PAH Analyses 12 



2.3.5 Pesticides and PCB Analyses 12 



2.3.6 QA/QC 13 



2.4 CTD and Dissolved Oxygen Sampling 14 



2.5 Benthic Habitat and Sediment Toxicity Assessment at Selected Stations . . 14 



3.0 RESULTS 16 



3.1 Bathymetry and Navigation 16 



3.2 REMOTS® Sediment-Profile Photography 16 



3.2.1 Dredged Material Footprint 16 



3.2.2 Grain Size Distribution 24 



3.2.3 Boundary Roughness 28 



3.2.4 Apparent RPD Depth 33 



3.2.5 Successional Stage 38 



3.2.6 Organism-Sediment Index (OSI) 38 



3.3 Selection of Alternate Reference Areas 41 



3.3.1 Preliminary REMOTS® Survey at SOUTH and EAST 41 



3.3.2 Bathymetric Characterization 41 



3.3.3 Sediment Analysis 47 



3.4 CTD and Dissolved Oxygen Sampling 53 



3.5 Benthic Habitat and Sediment Toxicity Assessment of Selected Stations . . 53 



