Open AccessEvaluation of dredged material proposed for ocean disposal from Westchester Creek project area, New York
Author(s) -
M.R. Pinza,
W.W. Gardiner,
E.S. Barrows,
Amy B. Borde
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/425222
Subject(s) - dredging , sediment , environmental science , benthic zone , environmental chemistry , core sample , bioaccumulation , environmental engineering , geology , oceanography , engineering , chemistry , paleontology , telecommunications , core (optical fiber)
The objective of the Westchester Creek project was to evaluate proposed dredged material from this area to determine its suitability for unconfined ocean disposal at the Mud Dump Site. Westchester Creek was one of five waterways that the US Army Corps of Engineers- New York District (USACE-NYD) requested the Battelle/Marine Sciences Laboratory (MSL) to sample and evaluate for dredging and disposal in May 1995. The evaluation of proposed dredged material from the Westchester Creek project area consisted of bulk sediment chemical analyses, chemical analyses of dredging site water and elutriate, benthic acute and water-column toxicity tests, and bioaccumulation studies. Thirteen individual sediment core samples were collected from this area and analyzed for grain size, moisture content, and total organic carbon (TOC). One composite sediment sample representing the Westchester Creek area to be dredged, was analyzed for bulk density, specific gravity, metals, chlorinated pesticides, polychlorinated biphenyl (PCB) congeners, polynuclear aromatic hydrocarbons (PAHs), and 1,4-dichlorobenzene. Dredging site water and elutriate water, which is prepared from the suspended- particulate phase (SPP) of the Westchester Creek sediment composite, was analyzed for metals, pesticides, and PCBS