Dewatering Deep Servicing Trench using multi-level vacuum wellpoint dewatering systems in a sensitive environmental setting


One of Ontario’s premier homebuilders consistently relies upon Aquatech when developing the underground servicing in its residential communities. In this instance, working in the region of Whitchurch-Stouffville, one of the builder’s developments was bounded by the environmentally sensitive Rouge River system to the southwest. The geology was characterized as a dense glacial till capping an artesian and sub-artesian aquifer system that connected directly to the Rouge River and its tributaries.


Aquatech’s responsibilities included the comprehensive management of groundwater control. They implemented both positive and passive pumping systems and managed the Permit to Take Water (PTTW) and discharge authorization to help support the construction of sanitary, storm and water servicing. In addition, Aquatech was responsible for overseeing the ongoing environmental monitoring program for the site to ensure there were no impacts to nearby water wells, creeks, tributaries and wet woodlots.