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One-Pass-Trencher used to repair Tyler Dam.
Greg DeWind takes pride in his one-pass trenching machine.
With a smile on his face, he watches Wednesday as it is used to dig a trench at the Lake Tyler Dam.
The 225,000-pound, 3,000-horsepower machine mixes soil, cement and bentonite clay as it cuts a trench that is 2 1/2-foot wide and about 70 feet deep, according to Steve Richards, with ETTL Engineers and Consultants. It burns about 100 gallons of fuel per...
Ground Water Collection Systems by DeWind One-Pass Trenching.
“Large potash mining operations are being carried out in multiple sites by a company in Canada’s Western provinces. At one of the mining operations tailings containing large concentrations of salt are consolidating in massive piles in holding areas. Surrounded by dykes these piles create a contamination hazard as, over time, the salt contained in these tailings slowly leaches into the...
Precision Soil Bentonite Wall (SBW) Installed in small spaces by DeWind Trenching
With no room to excavate and no allowance to reroute traffic, a unique solution was needed to install a Soil Bentonite Wall (SBW) wall in one pass. See how tight working quarters and demanding timelines make DeWind Trenching’s “One-Pass Trenching Technology” the perfect solution for all Soil Bentonite wall installs.
DeWind DeWatering Inc. Aids “Heart of the City” Health Care Building
In an attempt to annually reach thousands of additional low income people with primary health services, three Grand Rapids health care providers embarked on a collaborative project to construct an integrated health facility aptly christened Heart of the City Health Care. When the construction was halted by high groundwater levels contractors turned to DeWind Dewatering to engineer a complex...
Reactive Barrier Wall Project Update
Reactive Barrier Wall solves space and on-going activity problems during remediation project
“Name Removed”, was contracted to install a passive reactive barrier wall in “Name Removed”. The wall was designed to remediate groundwater containing tetrachloroethylene (TCE). What made this job unique was the site location. Installation would occur in an operating commercial centre where site parameters were...
Gas Plant Groundwater Remediation
One-pass trenching method used for a gas plant groundwater remediation project
Not many environmental engineers have heard of one-pass trenching and even fewer have actually applied this cutting-edge technology to environmental control and clean-up. However, a growing number of companies are starting to use this technology, resulting in decreased cost of installation and increased system efficiency.
One such company is “NAME...
Waste Site Cleaned with One-Pass Trenching Technology
Waste site cleaned with one-pass trenching technology.
An abandoned sand and gravel quarry, with a dubious second use as an industrial waste disposal dumping ground, has been cleaned up with the aid of a technology known as the one-pass trenching method.
The site had accepted distillation wastes from a local solvent recycler. Due to odours, the dumping prompted citizen complaints that eventually led to an...
Groundwater Remediation of a Contaminated Site :
Groundwater Remediation of a Contaminated Site using Enhanced Anaerobic Bioremediation
Chlorinated solvents are a common threat to drinking water sources throughout the United States. While handling and disposal practices today are more closely regulated and monitored, this has not always been the case. With dry cleaners using tetrachloroethene (PCE) and industrial manufacturing facilities commonly using a variety...
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