Operation CHASE (an acronym for "Cut Holes And Sink 'Em") was a United States Department of Defense program for the disposal of unwanted munitions at sea from May 1964 until the early 1970s.[1][2] Munitions were loaded onto ships to be scuttled once they were at least 250 miles (400 km) offshore.[3][4] While most of the sinkings involved conventional weapons, four of them involved chemical weapons.[3] The disposal site for the chemical weapons was a three-mile (5 km) area of the Atlantic Ocean between the coast of the U.S. state of Florida and the Bahamas.[5] Other weapons were disposed of in various locations in the Atlantic and Pacific oceans. The CHASE program was preceded by the United States Army disposal of 8,000 short tons of mustard and lewisite chemical warfare gas aboard the scuttled SS William C. Ralston in April 1958.[1][6] These ships were sunk by having Explosive Ordnance Disposal (EOD) teams open seacocks on the ship after they arrived at the disposal site. The typical Liberty ship sank about three hours after the seacocks were opened.[1]
Decommissioned Liberty ships were filled with obsolete munitions and sunk at sea.
^ abcKurak, Steve "Operation Chase" United States Naval Institute Proceedings September 1967 pp. 40-46
^Brankowitz, William R. Chemical Weapons Movement History Compilation(PDF). Aberdeen Proving Ground, Maryland: Office of the Program Manager for Chemical Munitions. Archived from the original (PDF) on 2013-07-12.
^ abCite error: The named reference global was invoked but never defined (see the help page).
^Mauroni, Al. "The US Army Chemical Corps: Past, Present, and Future Archived 2007-07-27 at the Wayback Machine", Army Historical Foundation. Retrieved 26 November 2007.
^Wagner, Travis. "Hazardous Waste: Evolution of a National Environmental Problem", (Project Muse), Journal of Policy History, 16.4 (2004) pp. 306-331. Retrieved 26 November 2007.
^Kraft, James C. "The Last Triple Expander" United States Naval Institute Proceedings February 1977 p. 67
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