US Army Corps of Engineers
Omaha District Website

Grand Island, NE: Cornhusker Army Ammunition Plant

Installation Restoration Program (IRP) & Military Munitions Response Program (MMRP)

Published April 7, 2015

Location and Description: Located just west of Grand Island, Nebraska, approximately 2,270 acres of the original 12,000 acres of the Cornhusker Ammunition Plant land are in need of restoration prior to final public disposal. Military munitions, bombs, boosters, and charges were produced at CHAAP during WWII, Korea, and Vietnam until 1974.

It was designated as a National Priorities List site by the U.S. Environmental Protection Agency due to the release of explosives in waste water to cesspools and leach pits that contaminated the groundwater both on the installation and off-site. A Federal Facilities Agreement was signed with EPA Region 7 and the Nebraska Department of Environmental Quality in September 1990. Restoration activities included cleanup of explosives/asbestos-contaminated soils.

Problem and Response: Accelerate disposal of all tracts pending confirmation that removal of Munitions and Explosives of Concern and environmental contaminants has rendered disposed military munitions safe for public transfer.

Activities for 2015: Contract operations for long-term operation of the explosives-contaminated groundwater plume treatment system; continue the injections of amendments into the groundwater plume to accelerate cleanup on the site; finish munitions removal actions under the existing engineering and environmental cost analysis.

Proposed Activities for 2016: Initiate a contract for the start of the Comprehensive Environmental Response Compensation and Liabilities Act. Continue to operate the pump and treat system.


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