Project Rulison

rdf:langString Project Rulison

rdf:langString Project Rulison

rdf:langString View of Rulison Site.

rdf:langString United States

rdf:langString Project Rulison - Aerial Site View.jpg

rdf:langString near Parachute, Colorado

rdf:langString Project Rulison, named after the rural community of Rulison, Colorado, was an underground 40-kiloton nuclear test project in the United States on September 10, 1969, about 8 miles (13 km) SE of the town of Grand Valley, Colorado (now named Parachute, Colorado) in Garfield County. The location of "Surface Ground Zero" is 39°24′19.0″N 107°56′54.7″W / 39.405278°N 107.948528°W. The depth of the test cavity was approximately 8,400 ft (2,600 m) below the ground surface. It was part of the Operation Mandrel weapons test series under the name Mandrel Rulison, as well as the Operation Plowshare project which explored peaceful engineering uses of nuclear explosions. The peaceful aim of Project Rulison was to determine if natural gas could be easily liberated from underground regions. This site remains under active monitoring by the U.S. Department of Energy Office of Legacy Management. The test succeeded in liberating large quantities of natural gas; however the resulting radioactivity left the gas contaminated and unsuitable for applications such as cooking and heating homes. Although projected public radiation exposures from commercial use of stimulated gas had been reduced to less than 1% of background, it became clear in the early 1970s that public acceptance within the U.S. of any product containing radioactivity, no matter how minimal, was difficult if not impossible. This was the second of three nuclear demonstration projects for natural-gas-reservoir stimulation as part of the Plowshare program. The other two were Project Gasbuggy in 1967 in northern New Mexico and Project Rio Blanco in 1973 in Colorado.