User's Guide for Assessing Sediment Transport at Navy Facilities

Abstract : The Navy has more than 200 contaminated sediment sites, with a projected remediation cost of $1.3 billion. Space and Naval Warfare Systems Center San Diego (SSC San Diego) developed this guide to ensure that sediment investigations and remedial actions are successful and cost effective. It provides guidance on evaluating sediment transport at contaminated sediment sites, and describes how to use sediment transport information to support sediment management decisions. This guide provides Navy Remedial Project Managers (RPMs) and their technical support staff with practical guidance on planning and conducting sediment transport evaluations. It identifies and reviews methods and tools that can be used to characterize sediment transport, and provides a framework that can be used to more clearly identify the types of measurements and data analysis methods that can be used at a contaminated sediment site. It also provides guidance on how the results of a well-designed sediment transport evaluation can be used to develop management decisions for contaminated sediment sites. The framework developed in this report has been applied at three demonstration sites. Various technologies and data analysis methods identified in this guide were applied at the sites, and results were used to develop a detailed conceptual site model (CSM) that could be used to support the development and selection of the most cost-effective and environmentally sound remediation scenarios for the sites. A case study report for each of these demonstration sites is provided in the appendices. Demonstration site results were used to refine the general approach for characterizing sediment transport presented in this guide.