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CASE STUDY: Suncor Fort Hills Tank Skirt System – Western Engineered Containment (WEC)

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Suncor Fort Hills Tank Skirt System


Secure Energy Services, Suncor, Western Engineered Containment Ltd. (WEC)


  • Erosion Control – rain or melting snow can carry earthen material (dirt) from the slopes coming down from tanks to the toe, compromising tank foundation stability. Precidium ™ ECS™ (ECS™) prevents that from happening by providing an impermeable barrier between the ground and the elements.
  • Corrosion Control –Most tank corrosion occurs at the base of the tank; ECS™ eliminates flow paths from the surface to under the tanks, thereby minimizing the amount of fluid and corrosion at the tank base.

Suncor Fort Hills Tank Skirt Image 1


During the fall of 2018, over a two (2) week period, WEC installed ECS™ 40 mil Tank Skirts around five (5) tanks at Suncor’s Fort Hills facility. Total coverage was 79,578ft², at an average radius of 15ft from the base of the tank. The impermeable ECS™ Tank Skirt was attached directly to the base of the tank and was keyed in a 2ft trench at the base of the skirt toe. ECS™ permanently attaches and seals to any substrate including steel tank bases and concrete spillways.

Suncor Fort Hills Tank Skirt Image 2

The entire 40 mil liner was pre-fabricated offsite utilizing WEC’s industry leading robotic application prespray system and was permanently fused together onsite with Precidium ™ ECS™ Fusion.


Suncor Fort Hills Tank Skirt Image 3

WEC’s Precidium ™ ECS™ Tank Skirt was chosen by Suncor as the solution to minimize berm erosion and tank base corrosion. WEC’s industry leading 15-year Warranty provides worry free maintenance for many years to come.

For reference on this project or any other ECS™ installation, please contact WEC at the numbers below or visit us at


Drayton Valley


Grande Prairie

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