March 2009

Roebling, NJ

Athena collected vibracores at 50 sites in waters adjacent to the Roebling Steel Superfund Site for a sediment chemistry study to determine extent of potential contamination in sediments.  This included a shallow wetland area to the south and in a river called the Back Channel The disparate nature of the two areas required Athena to deploy multiple research vessels in order to meet project requirements.  Another variable that could have caused potential problems was the extremely high tide range in the area which created shallow water depths (<1 foot) in some areas.  This required both detailed planning and the ability to adapt to conditions in real time in order to meet project schedule.

February 2009

Norfolk, VA

Athena collected over 70 vibracores at Pier 11, Naval Station Norfolk, Virginia in two mobilizations in 2008 and 2009.  The cores were used as part of construction planning and environmental assessments of sediments in the project area.  Local conditions included water depths between twenty and fifty feet and a local tide of around four feet.

March 2008

CHARLESTON, SC ODMDS GEOTECHNICAL EVALUATION

Athena collected 40 vibracores at an offshore dredge disposal site 8 miles from the entrance to Chalreston Harbor for a geotechnical evaluation.  Water depths ranged from 30-40 feet and cores were collected to 15 feet below grade.

1991-2009

South Carolina Offshore Sand Searches

Athena has been providing sand source evaluation services for beaches in South Carolina for nearly 20 years.  This includes projects several large scale projects at Myrtle Beach (300 vibracores), Hunting Island (75 vibracores), and Folly Beach (155 vibracores), as well as smaller projects at other locations.  In addition to vibracoring services, Athena provided geological and geotechnical data to be used during the permitting, design and construction phases of the project by engineering professionals.  This included preparation of detailed lithologies, core photography, selection of sub-sample intervals, and oversight of laboratory work.

1999-Present

West Coast of Florida, Taylor County to Marco Island

Athena has been active on the west coast of Florida for 10 years and is continuing to provide quality vibracore services for clients in the area.  This includes larger projects like Gasparilla Island, but mostly centers on dozens of small (5-15 vibracores) projects at the many navigation channels throughout the area and potential beneficial uses for dredged material.  (North is to the left on the aerial photograph)