A DNAPL emergency remedial action program in a developing country: Part II
- Federal Univ. of Alagoas-Brazil (Brazil). Dept. of Geology
- Geomatrix Consultants, Inc., San Francisco, CA (United States)
At the 44th Annual National Ground Water Association Convention in Las Vegas, a poster was presented that described a large DNAPL ground-water contamination problem at an industrial complex that produces chlorinated hydrocarbons in Brazil. The industrial complex lies above a major drinking water aquifer. Ground-water monitoring wells were installed in an effort to define the extent of the dissolve-phase ground-water plume. Field and laboratory data were analyzed, a ground-water flow model was developed, and a feasibility study was conducted to identify, evaluate, and select emergency interim remedial measures. Interim remedial measures were implemented less than six months from installation of the first monitoring well and included ground-water extraction and treatment to provide hydraulic control of the plume and prevent further migration of contaminants to downgradient receptors. In the subsequent year since the first interim ground-water extraction well was installed a number of key tasks have been completed. Ground-water extraction and monitoring identified a preferred pathway for contaminant migration. The remedial strategy for the site includes developing an efficient ground-water hydraulic control program based on collapse of the plume width and shortening the overall plume length (in progress). After an efficient hydraulic control program has been installed and verified, efforts will focus on source mass reduction. Long-term hydraulic control is anticipated to be an integral part of the remediation program.
- OSTI ID:
- 6014639
- Report Number(s):
- CONF-9310166-; CODEN: JEVHAH
- Journal Information:
- Journal of Environmental Health; (United States), Vol. 56:3; Conference: Association of Ground Water Scientists and Engineers (AGWSE) educational seminar on chlorinated volatile organic compounds in ground water, Kansas City, MO (United States), 17-20 Oct 1993; ISSN 0022-0892
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BRAZIL
WATER POLLUTION
ENVIRONMENTAL TRANSPORT
FLOW MODELS
GROUND WATER
CONTAMINATION
ORGANIC CHLORINE COMPOUNDS
HYDRAULIC CONDUCTIVITY
HYDROCARBONS
MONITORING
PLUMES
REMEDIAL ACTION
DEVELOPING COUNTRIES
HYDROGEN COMPOUNDS
LATIN AMERICA
MASS TRANSFER
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
SOUTH AMERICA
WATER
540250* - Environment
Terrestrial- Site Resource & Use Studies- (1990-)