CERCLA and State: Colorado
- U.S. Army, PRP, and EPA enter into Federal Facilities Agreement 2/89 - includes 13 interim response actions
- ROD signed 12/9/96
- DoD Lead
|Point of Contact:|
Colonel Eugene H. Bishop
Rocky Mountain Arsenal
Commerce City, CO 80022-2180
(303) 289-0467 - Public Affairs Office
(303) 286-8032 - SQI Information Hotline
RMA was established in 1942 and historically has been used for manufacturing and demilitarizating chemical incendiary weapons. Portions of RMA were leased for the private production of agricultural chemicals including pesticides from 1947 to 1982. Between 1957 and 1982 an evaporation pond (Basin F) was used for disposal of various wastewaters from the site's manufacturing process and wastes from demilitarization activities.
The Army and the on-site chemical manufacturer were designated as responsible parties in a Federal Facilities Agreement (FFA) entered into in 1989. The FFA specified 13 interim response actions (IRAs), including the remediation of Basin F. A Record of Decision (ROD) for all operable units at the site was signed June 11, 1996.
The Army selected SQI to dispose of Basin F liquids. The SQI system included an atomizing liquid injection system; an incinerator chamber; a quench chamber; a spray dryer; a venturi scrubber for particulate matter control; a packed-tower scrubber for neutralization of off-gases; and a residuals handing facility.
Full-scale operation of the SQI began in July 1993, and incineration of approximately 10.9 million gallons of Basin F liquid was completed by July 1995. The SQI was decommissioned, dismantled, and sold for parts, per the FFA, upon completion of the project. All applicable and relevant or appropriate requirements were met throughout the project.
The actual cost for remediation of Basin F was approximately $93,000,000, including $14,800,000 in capital costs and $78,500,000 in operation and maintenance costs.