Longhorn Army Ammunition Plant

Superfund site in Karnack, TX · EPA ID TX6213820529

Longhorn Army Ammunition Plant is a Superfund site in Karnack, TX on the EPA National Priorities List (Currently on the Final NPL). Contaminants of concern include 1,3-DINITROBENZENE, 2,4,6-TRINITROTOLUENE, 2,4-DINITROTOLUENE, 2,6-DINITROTOLUENE. The EPA reports insufficient data to determine whether human exposure is under control at Longhorn Army Ammunition Plant.

EPA status

National Priorities List
Currently on the Final NPL
Human exposure under control
Insufficient Data
Groundwater migration under control
Insufficient Data
Construction complete
No
Sitewide ready for reuse
No
Federal facility
Yes
EPA region
06
County
Harrison

Contaminants of concern

Grouped by the environmental medium in which the EPA recorded them.

Buildings/Structures

  • 1,3-Dinitrobenzene
  • 2,4,6-Trinitrotoluene
  • 2,4-Dinitrotoluene
  • 2,6-Dinitrotoluene
  • 2-Amino-4,6-Dinitrotoluene
  • 4-Amino-2,6-Dinitrotoluene

Free-phase NAPL

  • Trichloroethene

Groundwater

  • 1,1,1-Trichloroethane
  • 1,1,2-Trichloroethane
  • 1,1-Dichloroethane
  • 1,1-Dichloroethene
  • 1,2-Dichloroethane
  • 1,3,5-Trinitrobenzene
  • 1,4-Dioxane
  • 1-Methyl-2-Nitrobenzene
  • 1-Methyl-3-Nitrobenzene
  • 1-Methyl-4-Nitrobenzene
  • 2,3,7,8-Tetrachlorodibenzo-P-Dioxin (Tcdd) Toxicity Equivalents (Teq)
  • 2,4,6-Trinitrophenol
  • 2,4,6-Trinitrotoluene
  • 2,4-Dinitrotoluene
  • 2,6-Dinitrotoluene
  • Acetone
  • Aluminum
  • Antimony
  • Arsenic
  • Barium
  • Benzene
  • Bis(2-Ethylhexyl)Phthalate
  • Bromodichloromethane
  • Cadmium
  • Carbon Tetrachloride
  • Chloride
  • Chlorobenzene
  • Chloroethane
  • Chloroethene (Vinyl Chloride)
  • Chloroform
  • Chromium
  • Cis-1,2-Dichloroethene
  • Cobalt
  • Dichloromethane (Methylene Chloride)
  • Ethylbenzene
  • Hexachlorobenzene
  • Iron
  • Lead
  • Manganese
  • Mercury
  • Nickel
  • Nitrobenzene
  • Pentachlorophenol
  • Perchlorate
  • Petroleum
  • Selenium
  • Silver
  • Strontium
  • Styrene
  • Sulfate
  • Tetrachloroethene
  • Thallium
  • Tin
  • Toluene
  • Trans-1,2-Dichloroethene
  • Trichloroethene
  • Vanadium
  • Xylene (Mixed Isomers)
  • Zinc

Soil

  • 2,3,7,8-Tetrachlorodibenzo-P-Dioxin (Tcdd) Toxicity Equivalents (Teq)
  • 2,4,6-Trinitrotoluene
  • 2,4-Dinitrotoluene
  • 2,6-Dinitrotoluene
  • Arsenic
  • Barium
  • Bis(2-Ethylhexyl)Phthalate
  • Chromium
  • Dichloromethane (Methylene Chloride)
  • Lead
  • Nickel
  • Perchlorate
  • Tetrachloroethene
  • Thallium
  • Trichloroethene

Solid Waste

  • Acetone
  • Bis(2-Ethylhexyl)Phthalate
  • Cis-1,2-Dichloroethene
  • Dichloromethane (Methylene Chloride)
  • Explosives
  • Tetrachloroethene
  • Trichloroethene
  • Unexploded Ordnance (Uxo)

Surface Water

  • 1,1,2-Trichloroethane
  • 1,1-Dichloroethene
  • 1,2-Dichloroethane
  • Arsenic
  • Chloroethene (Vinyl Chloride)
  • Chromium
  • Cis-1,2-Dichloroethene
  • Dichloromethane (Methylene Chloride)
  • Manganese
  • Nickel
  • Perchlorate
  • Thallium
  • Trichloroethene

Location

15600 Highway 134, Karnack, TX 75661

Latitude 32.665, longitude -94.123339

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