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1 1 (April 16, 2008)

handle is hein.crs/crsajup0001 and id is 1 raw text is: Order Code RS22862
April 16, 2008
Cleanup of U.S. Military Munitions:
Authorities, Status, and Costs
David M. Bearden
Specialist in Environmental Policy
Resources, Science, and Industry Division
Summary
How to address safety, health, and environmental risks from potential exposure to
abandoned or discarded military munitions has been a long-standing issue. There has
been particular concern among the public about such risks at older decommissioned
military properties that have been in civilian use for many years, and at closed military
bases still awaiting redevelopment. Many of these properties contain former training
ranges and munitions disposal sites where the extent of unexploded ordnance (UXO)
and related environmental contamination is not fully understood. The approval of
another round of military base closings in 2005 raised additional concerns about
munitions risks on certain bases, and whether cleanup challenges may limit their civilian
reuse. This report discusses the potential hazards of military munitions and related
contamination, the authorities of the Department of Defense (DOD) to address these
hazards, the status and costs of cleanup efforts, and issues for Congress.
Potential Safety, Health, and Environmental Risks
Explosives can remain live in munitions and present a safety risk for many years,
even decades, after their military use has ceased, especially if munitions are buried and
thereby protected from degradation. Munitions used in training exercises do not always
detonate upon impact and can burrow beneath the surface where they can remain buried.
Munitions that remain on the surface also can be difficult to locate and recover, especially
on ranges with dense vegetation that may conceal munitions. The disposal of munitions
also can present lingering safety risks if munitions are not properly neutralized and are left
intact. Sites where munitions were meant to be destroyed in bulk by open burning or open
detonation in earthen pits frequently contain some live munitions. In such cases, certain
munitions may not detonate and may be buried by the explosive force of other munitions.
In addition to the more immediate safety risks from explosives, chemical constituents
in munitions can leach into the environment and present potential health risks if a
pathway of exposure is present through the air, soil, groundwater, or surface water.
Long-term exposure to contaminants can increase the risks of certain health effects,

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