Question: Basin F was constructed by the United States Army in 1956, to provide for the disposal of contaminated liquid wastes from the chemical manufacturing operations of the Army and its lessee Shell Chemical Company, at which location, that's a United States chemical weapons manufacturing center located in the Denver Metropolitan Area in Commerce City, Colorado?
Sentence (from "Rocky Mountain Arsenal"): The site was completed December 1942, operated by the United States Army throughout the later 20th century and was controversial among local residents until its closure in 1992.
Relevant evidence: No