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Source: https://erdc-library.erdc.dren.mil/jspui/ ; A radioactive tracer study was conducted in the Chesapeake Bay near the Poole's Island Deep disposal area to obtain qualitative information concerning movement of dredged material placed in the area. Approximately 15 curies of gold-198 was mixed with a sediment sample and placed on the bottom of the Bay. Daily tracings of the labeled sediment revealed movement along a narrow band in the general direction of the tidal currents. Movement in the direction of flood flow was determined to be much greater than that in the direction of ebb flow.