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U.S. Department of Energy
Office of Scientific and Technical Information

Superfund Record of Decision (EPA Region 8): Rocky Mountain Arsenal (Operable Unit 18), CO. (Third remedial action), February 1990. Final report

Technical Report ·
OSTI ID:5325929

The Rocky Mountain Arsenal (RMA) (Operable Unit 18) site comprises part of the 17,000-acre RMA site, which is a former U.S. Army chemical warfare and incendiary, munitions manufacturing, and assembly plant in Adams County, Colorado. From the 1950s until late 1969, the U.S. Army used the RMA facility to produce the nerve agent GB (isopropyl methyl- phosphonofluoridate). In addition, between 1947 and 1982, private industries manufactured various insecticides and herbicides. Since 1970, facility operations primarily have involved the destruction of chemical warfare materials. Thirteen Interim Response Actions (IRAs) were necessary prior to implementing the Final On-post Record of Decision (ROD). The ROD addresses interim remediation of source ares and management of migration. The primary contaminants of concern affecting the soil and ground water are VOCs, including benzene and TCE.

Research Organization:
Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
OSTI ID:
5325929
Report Number(s):
PB-91-921485/XAB; EPA/ROD/R--08-90/038
Country of Publication:
United States
Language:
English