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The HSSI POLYWALL Barrier System uses custom designed and
manufactured equipment to install a continuous vertical sheet of
40 to 100 mil High Density Polyethylene (HDPE) to depths of more
than 30 feet. Manufactured of virgin, first quality, high
molecular weight polyethylene, this custom-formulated
geomembrane is highly resistant to sunlight, chemicals, toxic
wastes and hydrocarbons. Benefits include:
- Lower costs due to rapid installation
process
- Can accommodate irregular
geometry/topographies
- Installed in 14-inch wide trench means
trenching spoils are minimized
- Offers positive control of subsurface
environments through isolation, containment and/or
separation
- Compatible with the Linear Contaminant
Remediation System (LCRS) for ground water capture and
control and contaminant removal
- Can be used with in-situ treatment
technologies such as physical, chemical and biological
reactors
- Eliminates subsurface installation dewatering
and resultant disposal requirements joints can be visually
inspected as they are made
 HSSI's One Pass Slurry Wall System will restrict
the migration of contaminated groundwater, HSSI installs
subsurface slurry walls at depths up to 30 feet without
benching. In the typical application, native soils are
homogenized by the cutting chain as bentonite is simultaneously
injected to create the low-permeability barrier.
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