Remediation Technology


Listed below are our latest case studies within the project category, Remediation Technology:


  • 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 (up to 8 mbgs) and disruption to the environmentally-sensitive area. As such, ISCO was selected

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  • 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 up to 26 meters below ground surface. Traditionally, this would serve as delineation of impacted

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  • 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, endangering the park’s water supply with BTEX, F1 to F4 and free phase up to

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  • In-Situ Injections Revitalize Historic Site

    Historical leaks from a series of underground tanks and pipes were indentified at a former fuel dispensing facility in Toronto. The leakage had created an underground plume over an area of approximately 1,000m2. Excavation was deemed to be technically challenging and cost prohibitive, involving compounds of concern such as: BTEX F1 to F4 PHCs Extensive

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  • Vertex Saves Wells without Disrupting Residents

    A spill near a residential area in Quebec released petroleum hydrocarbons into the underlying groundwater and soil. The accident posed a risk to nearby wells, endangering the local water supply. PHC contaminants included: Benzene, Toluene, Xylene

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  • Residential Area in Quebec

    Near a residential area in Quebec, an accidental release of petroleum hydrocarbons from a spill into the underlying groundwater and soil posed a risk to nearby water supply wells. Groundwater concentrations for selected PHCs included: Benzene (maximum concentration of 146 μg/L) Toluene (maximum concentration of 436 μg/L) Xylene (maximum concentration of > 4,000 μg/L)

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  • Industrial Site in New Jersey

    At an industrial site in New Jersey, historical leakage from a UST released petroleum hydrocarbons into the underlying groundwater and soil creating a health and ecology risk to overlying and down gradient receptors. Soil concentrations of PHCs included: BTEX (maximum concentration of 1,140 μg/g) F1 & F2 (maximum concentration of 4,200 μg/g) F3 & F4 (maximum concentration of

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  • Remote Residence Leaked Petroleum Hydrocarbons

    At a remote residence, petroleum hydrocarbons leaked from a UST into the underlying groundwater and soil creating a health and ecology risk to the residents and local environment. Soil concentrations of PHCs included: BTEX (maximum concentration of 152 μg/g) F1 & F2 (maximum concentration of 7,000 μg/g) F3 & F4 (maximum concentration of 6,200 μg/g)

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  • Operating Manufacturing Facility

    At an operating manufacturing facility, free phase petroleum hydrocarbons were discovered underneath the facility. Soil concentrations of PHCs included: BTEX (maximum concentration of 5 μg/g ) F1 & F2 (maximum concentration of 4,920 μg/g ) F3 & F4 (maximum concentration of 44,000 μg/g )

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  • Rural Residence Heating Oil Storage Tank

    At a rural residence, petroleum hydrocarbons leaked from a heating oil storage tank into the underlying groundwater, rock and soil. The release created potential health and ecological risks for the residents and local environment. Soil concentrations included: PHC (maximum concentration of > 1,110 μg/g) Groundwater concentrations ranged up to: PHC (maximum concentration of > 64,200 μg/L)

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