Table of Contents 



List of Tables i 



List of Figures iii 



Abstract 1 



I. Introduction 2 



Contaminant Concentrations 4 



Potential for Toxicant Effects 5 



Previously Measured Biological Effects 8 



II. Methods and Materials 15 



Sampling Methods 19 



Sediment Testing Methods 20 



Estimates of the Spatial Extent of Toxicity 22 



Chemical Analyses: Phase 1 23 



Chemical Analyses: Phase 2 25 



Data Analyses 27 



III. Results 28 



Solid-Phase Amphipod Tests 28 



Elutriate/Liquid Phase Bivalve Larvae Tests 38 



Microbial Bioluminescence Tests of Organic-Extracts 50 



Polychaete and Sand Dollar Growth Tests 57 



Estimates of Spatial Extent of Toxicity 58 



Concentrations and Distribution of Contaminants in Sediments: Phase 1 60 



Concentrations and distribution of Contaminants in Sediments: Phase 2 62 



Relationships Between Toxicity and Physical-Chemical Parameters: Phase 1 76 



Relationships Between Toxicity and Physical-Chemical Parameters: Phase 2 96 



IV. Discussion 111 



Incidence and Severity of Toxicity 111 



Spatial Extent of Toxicity 117 



Spatial Patterns in Toxicity 117 



Correlations Among Toxicity Tests 121 



Summary of Chemistry/Toxicity Relationships 122 



V. Conclusions 126 



Potential for Toxicity 126 



Incidence of Toxicity 126 



Spatial Patterns in Toxicity 127 



Spatial Extent of Toxicity 127 



Chemistry/Toxicity Relationships 127 



Acknowledgments 128 



References 129 



Appendices 134 



