USACE Survey Section identified a potential object in the lower part of Marcus Hook Range during a survey conducted 04 May 2017. The minimum depth of the object is 39.5 MLLW.

LATITUDE: 39 47.196871 N
LONGITUDE: 075 27.309784 W
APPROXIMATE DIMENSIONS: 4` Diameter, 3` Height, Min Depth 39.5`, 75` from PA side of channel.

See attached chartlet for details.