MPE system in the Kitchener-Waterloo area


Vertex Environmental Inc. specializes in the design, implementation and optimization of remedial systems including multi-phase extraction (MPE) systems. Vertex staff designed, permitted, optimized and operated a MPE system in the Kitchener-Waterloo area for the containment and extraction of petroleum hydrocarbon-impacted groundwater including the extraction of free product. The system was installed in a glacial till near a gas station. The system was designed to handle a high flow of groundwater and vapour while responding to fluctuations in the water table. The treatment system consisted of an air stripper, particulate filter and activated carbon for both air and water.

Scope of Work

Compounds treated using the MPE system included:

  • Petroleum hydrocarbons
    • Benzene
    • Toluene
    • Ethylbenzene
    • Xylenes
  • Free phase hydrocarbons
  • Dissolved iron and hardness

The Vertex Approach

Vertex combines strong theorical understanding with practical experience to properly plan and implement the right remedial program for your site. Selecting Vertex to undertake your remediation project allows you to access a wealth of experience and knowledge


The keys to the successful application of a MPE system is choosing the right combination of pumps and vacuums along with proper infrastructure to minimize leaks. The system was able to remove free phase LNAPL while hydraulically containing the dissolved phase plume and mitigating impacts to downgradient residents. The MPE system also enhanced natural attenuation reactions occurring within the shallow impacted aquifer.

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