Public health assessment for Longhorn Army Ammunition Plant, Karnack, Harrison County, Texas, Region 6, CERCLIS number TX6213820529. Final report

Technical Report · Fri Jul 09 04:00:00 EDT 1999

OSTI ID:698789

Longhorn Army Ammunition Plant (Longhorn) is an 8,493 acre government-owned former industrial facility approximately 14 miles northeast of Marshall, Harrison County, Texas. Longhorn has been intermittently in operation since 1942 when it was established to produce the explosive 2,4,6-trinitrotoluene (TNT). Pyrotechnic ammunition also was produced at Longhorn and Morton Thiokol Corporation produced a plastic explosive at the facility until August 1997. According to document record for the hazardous ranking system, releases of 1,3-dinitrobenzene, 1,3,5-trinitrobenzene, arsenic, barium, chromium, and lead occurred. The Agency for Toxic Substances and Disease Registry (ATSDR) reviewed available environmental information for the site and evaluated several potential exposure situations. These exposure situations include potential contact with site contaminants in surface water, sediment, surface soil, wasteline material, and groundwater. Although site-related contaminants have been found in these various environmental media, currently the contaminants are not accessible, on or off the site, at levels that would pose a public health threat. Based on available information, the authors have concluded that overall, the Longhorne Army Ammunition Plant poses on apparent public health hazard. In the future, the conclusion category for this site could change if additional data were to indicate that contaminants from the site were migrating towards the public water supply wells near the site.

• Research Organization: Texas State Dept. of Health, Austin, TX (United States); Agency for Toxic Substances and Disease Registry, Atlanta, GA (United States)
• OSTI ID: 698789
• Report Number(s): PB--99-171860/XAB
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
ARSENIC
BARIUM
CHROMIUM
ENVIRONMENTAL EXPOSURE PATHWAY
GROUND WATER
HEALTH HAZARDS
LAND POLLUTION
LEAD
NITROBENZENE
PUBLIC HEALTH
SEDIMENTS
SURFACE WATERS
TEXAS
TNT
US SUPERFUND
WATER POLLUTION