P660 Acoustic mapping in support of contaminated sediment investigations. Biberhofer, Johann*,1, Rukavina, Norman1, 1 Environment Canada, Burlington, Ontario, Canada

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P661 Use of Immunoassay Screening Technique for Rapid Sediment Characterization of PCBs at Indian Head, Maryland and Quantico, Virginia. Guerrero, Joel*,1, Leather, James1, 1 Space and Naval Warfare (SPAWAR) Systems Center, San Diego, CA, USA

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P662 A Triad Study for Assessing the Ecological Effects of an Oil Refinery Effluent in the Delaware River. Hall, LW*,1, Burton, DT1, Anderson, RD1, Turley, SD1, Alden, RW2, 1 Wye Research & Education Center, University of Maryland, Queenstown, MD, USA2 University of Nevada - Las Vegas, Las Vegas, NV, USA

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P663 Potential Impacts of Landfill Leachate to Alligator River National Wildlife Refuge. Winger, Parley*,1, Lasier, Peter1, Augspurger, Tom2, 1 USGS Patuxent Wildlife Research Center, University of Georgia, Athens, GA, USA2 US Fish and Wildlife Service, Ecological Services, Raleigh, NC

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P664 Recent History of Anthropogenic Trace Metals in Two Southern California Borderland Basins. Nilsen, Elena*,1, Delaney, Margaret1, 1 University of California, Santa Cruz, Santa Cruz, Ca, USA

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P665 Variability of Parameters Measured During the Resuspension of Sediments with a Particle Entrainment Simulator. Cantwell, Mark*,1, Burgess, Robert1, 1 U.S. EPA Atlantic Ecology Division, Narragansett, RI, us

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P666 Effects of chromium in sediment: 1. Toxicity tests with saltwater field sediments. Berry, Walter*,1, Boothman, Warren1, Serbst, Jonathan1, Edwards, Philip1, 1 U.S.EPA, Narragansett, RI, USA

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P667 Effects of chromium in sediments: 2. Chronic toxicity of chromium to the amphipod, Hyalella azteca in water-only exposures. Ivey, Chris*,1, Kemble, Nile1, Besser, John1, Brumbaugh, Bill1, Hardesty, Doug1, Ingersoll, Christopher1, 1 Columbia Environmental Research Center, Columbia, MO, USA

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P668 Effects of chromium in sediments: 3. Toxicity of chromium(VI)-spiked freshwater sediments to the amphipod, Hyalella azteca. Besser, John*,1, Brumbaugh, William1, Kunz, James1, Ingersoll, Christopher1, 1 U.S. Geological Survey, Columbia, MO

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P669 Effects of chromium in sediment: 4. Monitoring of chromium in sediment, pore water, and overlying water of Cr(VI)-spiked freshwater sediments . Brumbaugh, William*,1, May, Thomas1, Wiedmeyer, Raymond1, Besser, John1, Ingersoll, Christopher1, 1 U.S. Geological Survey, Columbia, MO, USA

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P670 Evaluation of Toxicity in Sediment Containing PAH and Metals in the Sediments of a South Carolina Marsh. Anderson, Paul*,1, Manoogian, Beth1, Matkoski, Susan1, Slenska, Mike2, 1 AMEC Earth and Environmental, Westford, MA, USA2 Beazer East, Inc., Pittsburgh, PA, USA

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P671 Use of the Sediment Quality Triad to Evaluate the Effects of PAH in a New England Pond. Rothrock, Julie*,1, Anderson, Paul1, Bollinger, Mike2, Patarcity, Jane2, 1 AMEC Earth and Environmental, Westford, MA, USA2 Beazer East, Inc., Pittsburgh, PA, USA

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P672 Using the Sediment Quality Triad Approach to Assess Sedimentary Contamination in the Anacostia River, Washington, D.C. Velinsky, David*,1, Ashley, J.1,2, Pinkney, F.3, McGee, B.3, Norberg-King, T.4, 1 The Academy of Natural Sciences-Patrick Center, Philadelphia, PA2 Philadelphia University, Philadelphia, PA3 US Fish and Wildlife Service- CBPO, Annapolis, MD4 US Environmental Protection Agency, Duluth, MN

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P673 PAH sediment studies in the Athabasca River and Lake Athabasca related to the Fort McMurray oil sands operations. Evans, M.*,1, Lockhart, L.2, Bechtold, J.3, Billeck, B.2, Wilkinson, P.2, Yunker, M.4, Stern, G.2, 1 Environment Canada, National Water Research Institute, Saskatoon, SK2 Fisheries & Oceans Canada, Freshwater Institute, Winnipeg, MB3 Golder Associates, Calgary, AB4 Brentwood Bay, BC

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