Compatibility of Ninth Avenue Superfund Site Ground Water with Two Soil- Bentonite Slurry Wall Backfill Mixtures

The interactions between solutes found in leachates from uncontrolled landfills and components of a soil-bentonite (SB) slurry wall are capable of causing swelling or shrinking slurry wall. The effect of solutes in contaminated ground water from the Ninth Avenue Superfound Site in Gary, IN, on the h...

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Bibliographic Details
Main Authors: Zappi, Mark E, Shafer, Richard A, Adrian, Donald D
Format: Report
Language:English
Subjects:
CONDUCTIVITY
CONTAMINATION
EARTH FILLS
GROUND WATER
HYDRAULICS
LEACHING
LIQUIDS
OBSERVATION
SAMPLING
SITES
SLURRIES
SOLUTES
WALLS
Water Pollution and Control
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Summary:The interactions between solutes found in leachates from uncontrolled landfills and components of a soil-bentonite (SB) slurry wall are capable of causing swelling or shrinking slurry wall. The effect of solutes in contaminated ground water from the Ninth Avenue Superfound Site in Gary, IN, on the hydraulic conductivity of two SB slurry wall backfill mixtures was evaluated using rigid- wall permeameters. Ground-water samples taken from three observation wells at the Ninth Avenue site contained solutes that could cause increases in the hydraulic conductivity of an SB slurry wall. One ground-water sampled contained salt concentrations as high as 20,000 mg/l.