ACE along with Tri-City Contracting Ltd. were recently awarded a design build contract for expansion of the existing washroom facilities and upgrade to the sewage disposal and water supply systems servicing the washrooms at the Coquihalla Toll Plaza. Our innovative concept involved treating the wastewater to a standard such that it could be reclaimed and used as non-potable water to flush toilets and urinals. This approach drastically reduced the size of the disposal field required and the complexities associated with discharging large quantities of wastewater into a mountainous region with less than favourable subsurface conditions, as well numerous groundwater seeps and wet areas. Further, our proposal eliminated the need to drill additional water wells and construct water storage facilities as would have previously been required to ensure adequate water supply.
Coquihalla Toll Plaza