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PROJECT
Nutrien Carseland Operation Secondary Containment
COMPANIES INVOLVED
- Western Engineered Containment (WEC)
- Nutrien Carseland
- Allnorth
- Flint Energy
THE CHALLENGE
Nutrien required 4 separate areas to have a secondary containment system installed. Multiple contractors had turned down the job due to the confined space and recommended Western Engineered Containment (WEC) because of their industry leading spray application for unconventional containments with complex geometry.
The tight radius of the concrete tank supports are troublesome when installing heavier gauge baton bar, adding a degree of difficulty and a higher likely hood of a “blown” anchor bolt, compromising the integrity of the most critical anchor point. Spray attaching eliminates the need to drill and install anchor bolts (anchor bolts are prone to cause cracking and disintegration in older concrete structures. Should this occur, the surrounding area of the concrete is compromised rendering the area unsuitable for additional anchoring).
The liner was spray attached to the tanks and to the concrete berms at 45” high to match the height of the Duraberm walls. Hilti anchored vertical I-beams provided an accurate and rigid support for the 45” Duraberm walls in place of pads and fins.
In an extremely congested area where neither pads/fins, nor I-beams were accessible to support the Duraberm wall, the combined ingenuity of onsite contractors and engineers developed a creative solution. They determined that supporting the walls was possible by attaching anchors on the inside of an adjacent building and securing the Duraberm walls through the wall of the building; a practical, simple, and cost-effective solution.
INSTALLATION
Over a 5-week period, WEC supplied and installed a secondary containment system within an area of approximately 536m² with 6 Technicians. The materials used included: ZGD Duraberm walls with 40 mil ECS Liner, 16 oz non-woven geotextile above the liner, as well as a 10 oz non-woven geotextile below the liner. The liners were prefabricated offsite utilizing WEC’s robotic application pre-spray system and then permanently fused together onsite with the ECS Fusion creating a completely sealed lining system. This was a very unorthodox containment including 4 separate areas of work. Sumps were installed to accommodate fluids moving between the containments while maintaining secondary containment. Piping was essential for on-going facility operations that were in service. WEC was able to successfully seal to the existing, insulated cladded pipe without any shutdown or interruption to facility operations required.
Only a few days were lost to poor weather conditions which included high winds and rain.
Beyond the cost of material, a polyethylene lining system would have been virtually impossible to install. With the pre-spray QC procedures for ECS sheets our QC software, WEC accurately records: date of pre-spray sheet manufacture, batch numbers, installation dates, as well as sheet placement/location (even with a subgrade installed over the ECS panels).
CONCLUSION
Even with all the difficulties and challenges with this project, the team completed everything ahead of schedule.
WEC offers a 15-year warranty with our ECS liner installations that is unmatched in the industry.
For a reference on this project or any other ECS installation, please contact WEC at any of the numbers below, or visit us at www.wecontain.com.
Calgary
403.294.0080
Drayton Valley
780.542.3364
Leduc
780.986.9599
Grande Prairie
780.567-3757
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