Superfund Record of Decision (EPA region 8): Union Pacific Railroad Laramie Tie Treating Plant, Laramie, Wyoming, September 1986. Final report

Technical Report · Fri Sep 26 00:00:00 EDT 1986

OSTI ID:6281607

The Union Pacific Railroad (UPRR) Tie Treating Plant is located southwest of Laramie, Wyoming. Wood-preserving agents used by UPRR or its contractor included: zinc chloride, a creosote oil and asphalt-based petroleum/residuum oil mixture, PCP. Process wastes were disposed of in the Laramie Waste Collection ponds. Currently, 140 acres are contaminated. The contamination ranges from soil saturated with free oil to ground water containing dissolved contaminants. The selected interim source control remedy is a Contaminant Isolation System which includes: realignment of the Laramie River channel; a soil-bentonite slurry barrier wall constructed through the alluvium and bedrock around the contaminated areas; a reverse-gradient ground-water draining and pumping system; an activated-carbon water-treatment plant. The treated water will be discharged to the Laramie River under the authority of an NPDES permit issued and administered by the State of Wyoming; and ground water monitoring.

• Research Organization: Environmental Protection Agency, Washington, DC (USA)
• OSTI ID: 6281607
• Report Number(s): PB-87-187761/XAB; EPA/ROD/R-08-86/010
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
510600* -- Environment
Terrestrial-- Regulations-- (-1989)
520600 -- Environment
Aquatic-- Regulations -- (-1989)
54 ENVIRONMENTAL SCIENCES
ABANDONED SITES
CREOSOTE
ECOLOGY
ELEMENTS
FEDERAL REGION VIII
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
LAWS
MANAGEMENT
MATERIALS
METALS
NORTH AMERICA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
POLLUTION LAWS
REMEDIAL ACTION
SUPERFUND
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WATER
WATER POLLUTION
WYOMING