Mark

The USS Chehalis, a Patapsco class gasoline tanker, commissioned on December 5, 1944, caught fire and sank in 1949 with more than 400 gallons of petroleum cargo and thousands of rounds of artillery shells on board. The vessel is lying in approximately 150 feet of water about 350 feet off the Fuel Dock at the

2005-2007 The Elm Road Generating Station is located on the shore of Lake Michigan in the city of Oak Creek, Wisconsin, approximately 12 miles south of the city of Milwaukee. The project involved the construction of two new coal-fired electric generating units and common facilities to accommodate up to 3,000 megawatts of generation at the

BP Cherry Point Refinery Piling Inspection and Repair – Annual Contract BP’s Cherry Point refinery has provided a significant portion of U.S. energy needs for more than 30 years. It is located along Pacific coastal waters in northwest Washington state and is the fourth largest refinery on the U.S. west coast. The refinery processes a

2007-2009 Round Butte Dam is located about 90 miles southeast of Portland, OR on and adjacent to the Warm Springs Reservation. Portland General Electric determined that a selective water withdrawal and fish bypass structure was necessary to ensure the survival of Summer Steelhead and Spring Chinook Salmon in the Upper Deschutes, Metolius and Crooked rivers.

2006 - 2010 King County conceived Brightwater as a major improvement to the regional sewerage treatment system in response to rapid population growth in greater Seattle. The project also will bring important environmental benefits, such as controlling untreated overflows into Lake Washington and Puget Sound, and recycling sewage into irrigation water. The conveyance system portion

2007 Due to the extreme ocean conditions at this location, the hold down chains needed to be replaced. Also, new anodes were welded on to protect the steel components of the pipeline.

2007 This project required AUS divers to replace a corroded flange backing ring and also replace three damaged diffuser ports at a maximum diving depth of – 160 feet. The repairs were successfully made without shutting down the operation of the sewage treatment plant.

2007-2015 AUS divers spent several months in American Samoa repairing outfalls for both government and private customers. A semi-autonomous agency of the American Samoa Government operates two primary treatment wastewater plants in Utulei and Fogagogo (Tafuna). The outfalls from these plants service about 8,000 connections and require repair to avoid environmental degradation of American Samoa’s