There are over 20 projects planned as part of the improvements of the Annacis Island Wastewater Treatment Plant. These projects include new trickling filters, secondary clarifiers and a co-generation facility to make better use of green energy captured on site.
The current facility already treats wastewater using primary and secondary treatment technologies, but an expanded facility will ensure that the plant can manage a higher volume of wastewater, continue to keep odour to a minimum and will continue to operate in the event of a major earthquake.
Most of the construction will take place on the existing site, however the new outfall will involve the construction of a tunnel 40 meters below the surface that will extend from the plant to the Fraser River.
The image below highlights some of the projects planned for the site (in light blue).