Project Description
Wastewater from the Annacis Island Wastewater Treatment Plant is released into the Fraser River through an outfall pipe once it has been treated. A new outfall location and diffuser system is being installed, which will involve constructing a tunnel approximately one-kilometre long from the plant to the river.
The new outfall location and design will ensure that treated effluent is dispersed over a broad area underwater to maximize dilution and minimize the impact on the environment.
The new pipe is expected to meet the regional growth needs for the next 100 years while ensuring greater seismic resilience and continuous, reliable and safe management of liquid waste.