Superfund Record of Decision (EPA Region 8): Rocky Mountain Arsenal (Operable Unit 16), CO. (Second remedial action), February 1990

Technical Report · Mon Feb 26 04:00:00 EST 1990

OSTI ID:5230785

The Rocky Mountain Arsenal (RMA) (Operable Unit 16) 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 Count, Colorado. From the 1950s until late 1969, the U.S. Army used the RMA facility to produce the nerve agent GB (isopropyl methyl-phosphonoflu oridate). From 1947 to 1982, private industries leased major portions of the plant facilities to manufacture various insecticides and herbicides. Since 1970, facility operations primarily have involved the destruction of chemical warfare materials. Thirteen Interim Response Actions (IRAs) were determined necessary prior to implementing the final On-Post Record of Decision (ROD). Operable Unit 16 (M-1 Settling Basins area) is one of several areas being addressed as part of the Other Contamination Sources IRA. The ROD addresses interim remediation of source areas and management of contaminant migration. The primary contaminants of concern affecting the soil, sludge, and ground water are organics including pesticides, and metals including arsenic.

• Research Organization: Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
• OSTI ID: 5230785
• Report Number(s): PB-91-921484/XAB; EPA/ROD/R--08-90/036
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ARSENIC
CHEMICAL WASTES
COLORADO
CONTAMINATION
DEVELOPED COUNTRIES
ECOLOGICAL CONCENTRATION
ELEMENTS
FEDERAL REGION VIII
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
MANAGEMENT
MATERIALS
METALS
MONITORING
NATIONAL GOVERNMENT
NONRADIOACTIVE WASTES
NORTH AMERICA
OXYGEN COMPOUNDS
PESTICIDES
POLLUTION
REMEDIAL ACTION
SEMIMETALS
SITE SURVEYS
SOILS
STATE GOVERNMENT
SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
WATER