Vertex was contracted to design, supply and operate a filtration system to treat petroleum hydrocarbon (PHC) impacted groundwater. The project objective was to lower the static water table to facilitate the excavation of PHC-impacted soils, followed by construction of a
Multi-Area Site LNAPL Plume Delineated
An active rail yard located in Edmonton, Alberta had been operating for years (and continues) prior to an intrusive environmental investigation being completed. After multiple rounds of traditional site investigations, significant data gaps remained in the vertical and horizontal delineation
Historical LNAPL Plume Delineated
An old rail storage yard located in Bonnyville, Alberta was operating for years prior to a laser induced fluorescence (LIF) investigation being completed. After traditional site investigations, light non-aqueous phase liquid (LNAPL) was discovered in in several monitoring wells. After
In-Situ Trap & Treat® Injection Satisfies Ministry Standards
Location: Industrial in Greater Toronto Area Contaminant: Chlorinated ethenes and ethanes Concentration: Dissolved phase groundwater impacts (up to 1,000 ug/L) Formation Type: 3.0 m thick layer of saturated silty sands, above limestone bedrock Historic industrial activities resulted in two separate
Unknown TCE Plume Delineated
An historic depot located in Northern Ontario was used for transferring chemicals from bulk storage to trucks for distribution. An extensive monitoring well installation and vapour probe survey was completed. Downgradient groundwater monitoring wells with significant concentrations of chlorinated solvents
Unknown LNAPL Plume Delineated
An historic landfill located in Southern Ontario was used for disposing of everything from household waste to industrial waste chemicals from bulk storage facilities. An extensive monitoring well installation and barrier wall was completed in previous years at the Site.
Cold Weather Injections at Remote Site
A historical leaking UST resulted in contamination to soil and groundwater inside a remote National Park. A Risk Assessment identified concerns over benzene concentrations for a planned building expansion. Excavation was ruled out due to the depth of the impacts
PHC High Resolution Site Characterization Survey
A historic leak from a UST released over 19,000 L of gasoline directly into the subsurface over a five year period. Extensive borehole drilling and monitoring well installations were completed. A downgradient area of high PHC concentrations was discovered extending
Chlorinated Solvents Treated Using “Trickle-Down” Method
Historic releases over many years caused significant vertical migration of PCE into soil and ground water. Major challenge encountered: impacts greater than 6 mbgs in silty clay till beneath occupied building.
Bedrock Drinking Water Well Protected
At a trailer park in Eastern Ontario, two tanks released heating oil into the underlying unconsolidated and fractured rock. Though much of the affected overburden was excavated, a petroleum hydrocarbon plume and associated free phase remained in the fractured bedrock,