Ground-water effects of the UCG experiments at the Hoe Creek site in northeastern Wyoming
Ground-water changes and subsidence effects associated with three underground coal gasification (UCG) experiments have been monitored at the Hoe Creek site in northeastern Wyoming. Ground-water quality measurements have extended over a period of four years and have been supplemented by laboratory studies of contaminant sorption by coal. It was found that a broad range of residual gasification products are introduced into the ground-water system. These contaminants may be of environmental significance if they find their way, in sufficient concentrations, into surface waters, or into aquifers from which water is extracted for drinking or agricultural purposes. Fortunately, the concentrations of these contaminants are substantially reduced by sorption on the surrounding coal. However, recent field measurements indicate that there may be significant limitations on this natural cleansing process. The contaminants of potential concern, and the mechanisms that affect their deposition and persistence have been identified.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6462015
- Report Number(s):
- UCRL-85468; CONF-810909-2; ON: DE81023660
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mechanisms for groundwater contamination by UCG: preliminary conclusions from the Hoe Creek study
Ground-water and subsidence investigations of the LLL in situ coal gasification experiments. [Hoe Creek No. 1; Hoe Creek No. 2]
Related Subjects
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AROMATICS
CHEMICAL ANALYSIS
COAL GASIFICATION
CONTAMINATION
ENVIRONMENTAL EFFECTS
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
GASIFICATION
GROUND SUBSIDENCE
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
IN-SITU GASIFICATION
IN-SITU PROCESSING
MASS TRANSFER
MONITORING
NORTH AMERICA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PROCESSING
ROCKY MOUNTAIN REGION
SORPTION
THERMOCHEMICAL PROCESSES
USA
WATER
WATER QUALITY
WYOMING