USMMA25_Area1-CompositingScheme_(2025).xlsx

This file is a composite sampling scheme for Area 1 of the Hague Basin at the U.S. Merchant Marine Academy (USMMA) in New York. The spreadsheet delineates six composite samples (labeled 2A through 6C) organized into four composite groups (A through D, plus M and N) based on depth intervals and layer classifications. The sampling framework establishes depth ranges from 0 to -18.0 feet, with Layer A covering 0' to -17.0', Layer B covering -17.0' to -17.5', and Layer C covering -17.5' to -18.0'. Each composite group contains multiple samples that appear to be organized by depth stratification, supporting the characterization of dredged material composition prior to removal and placement at approved upland sites. This sampling scheme is directly applicable to the maintenance dredging project, which requires removal of approximately 51,640 cubic yards of silt and clay material from Hague Basin. The composite samples will likely be used for quality assurance and regulatory compliance testing to ensure the dredged material meets all federal, state, and local placement criteria established by relevant agencies including the New York State Department of Environmental Conservation.