Kansas Army Ammunition Plant

The Kansas Army Ammunition Plant was a former Army munitions installation covering roughly 13,700 acres near Parsons in Labette County, Kansas. Established in 1942, the plant produced and assembled ammunition, bombs, and related components such as fuzes, boosters, detonators, and primers, and it also manufactured amatol (a mixture of TNT and ammonium nitrate), in support of the war effort during World War II, the Korean War, and the Vietnam era. For decades it was one of the region's significant defense industrial sites, employing large numbers of workers across its many production and storage buildings. The plant's ammunition production mission formally ended in 2009 following a Base Realignment and Closure decision, after which much of the property entered a phase of decontamination, demolition, and reuse planning. Today the site is best known for the environmental work tied to its long history of explosives manufacturing.

As with many older ammunition plants, decades of manufacturing, handling, and disposal of energetic materials left residues in soil, structures, and certain disposal areas. Investigations at the installation have documented explosives contamination tied to munitions work, and these findings have shaped the long-term cleanup effort.

1. Explosives: The plant's operations involved TNT and amatol along with the assembly of fuzes, detonators, boosters, and primers, and remediation records describe explosives contamination in buildings and in soil at the former production lines. Other military explosives such as RDX are commonly associated with ammunition manufacturing of this type, though the specific compounds confirmed at this installation center on the energetic materials handled in its load lines. Exposure to certain military explosives has been associated in some studies with health effects, and concerns about potential exposure have been part of the site's environmental evaluation.
2. Heavy metals: Metals are generally associated with primers, propellants, and munitions components, and they can persist in soil and sediment long after activity ceases. Depending on the specific metal, concentration, and route of exposure, elevated levels have been associated with potential health concerns. Metals of this kind are among the contaminant classes typically evaluated at former ammunition plants during investigation and remediation.

The Kansas Army Ammunition Plant was not placed on the National Priorities List and was instead addressed under the Resource Conservation and Recovery Act, with cleanup overseen jointly by the U.S. Environmental Protection Agency Region 7 and the Kansas Department of Health and Environment. On September 30, 2003, the EPA determined that contamination at the site was under control. Work has included removal of explosive material along with ongoing decontamination and demolition of structures, with regulated units undergoing closure activities and environmental use controls applied to portions of the property.

Veterans and civilian workers who served or were employed at the Kansas Army Ammunition Plant may wish to stay informed about the site's environmental record as cleanup continues. Anyone with questions about possible exposure and their health is encouraged to speak with the U.S. Department of Veterans Affairs and a personal physician, who can review individual history and advise on available care and benefits.