Site Chronology
(from Casper Star Tribune, Cold War Cleanup, July 12, 2009)

1960-1964

Trichloroethene, or TCE, is used to flush fuel residue from nuclear missiles near Cheyenne

1997

TCE is first detected in municipal wells operated by the Cheyenne Board of Public Utilities

2002

Wyoming Department of Environmental Quality receives federal grant to investigate TCE contamination in city water

2003

The city of Cheyenne buys the Belvoir Ranch as a water source.  Tests later prove that water under the ranch contains TCE.

2002-05

The U.S. Army Corps of Engineers discovers TCE at wells east of the Belvoir Ranch missile site.

2007

U.S. Senator John Barrasso, R-Wyo., begins pushing for federal accountability of the TCE groundwater contaminant plume.

2008

Additional test wells prove that TCE from missile site leaked into the city water source.

March 2009

Army Corps release 500-page report that says Missile Site is the source of contamination in the city water.