Annacis Island Wastewater Treatment Plant gets upgradeAnnacis Island Wastewater Treatment Plant gets upgrade<div class="ExternalClass54297AEDCE944FEE9C13F6FED7D3F3D5"><p>The Delta-based Annacis Island Wastewater Treatment Plant, which serves 1.25 million people, is undergoing major upgrades to meet Metro Vancouver's growing population.</p><p>Metro Vancouver has awarded a $252-million contract to Graham/AECON for the first phase of the upgrade project, which includes additional primary sedimentation tanks, solids contact tanks, and secondary clarifiers as well as improved odour control systems at the plant. It also includes seismic improvements.</p><p>The first phase is expected to be completed in 2021, with the second phase to start the following year. The phased-in approach is partly aimed at maintaining uninterrupted operations of the existing facilities during construction, while accommodating other high priority repair and maintenance projects to keep the existing plant in good shape.</p><p>The upgrades are expected to boost the plant's treatment capacity to accommodate another 250,000 people, while continuing to protect public health and the environment.</p><p>As part of the upgrades, a new outfall pipe is required to convey treated wastewater to the Fraser River. The design and permitting process for this project is well underway, with construction set for 2019 to 2022. </p><p>The new outfall will involve a four-metre diameter tunnel, about a kilometer long and at a depth of 40 metres underground. This will be constructed from the plant to the river, where a diffuser system will be installed on the river bottom.  The outfall location and design will improve water quality downstream from the plant, be more earthquake resilient, and more adaptable to sea level rise associated with climate change.</p><p>Metro Vancouver staff are working with First Nations, river users, local businesses and government agencies to identify potential project impacts and to find ways to minimize them.  Project information is available here: (<a href="http://subscription.metrovancouver.org/sites/chairupdate/SitePages/Home.aspx?jg=cdd676a7-c8c4-45f0-b214-f58c7c882537&eg=09a42dcf-ba68-46e2-a14a-75a38a381012&lg=ad7d00e1-4d5c-4582-af4f-dd382424e6c8&ltp=c" target="_blank">http://www.metrovancouver.org/services/liquid-waste/consultations/annacis-island-wwtp/about-project/Pages/default.aspx</a>), and meetings are planned with potentially impacted and interested groups to listen to concerns and to work together throughout the project.</p></div>http://www.metrovancouver.org/metroupdate/PublishingImages/annacis.jpg2017-05-25T07:00:00ZGP0|#3b8f3b80-a7ab-4371-9209-a63c0676026a;L0|#03b8f3b80-a7ab-4371-9209-a63c0676026a|Issue 32;GTSet|#d14ffe11-45dc-48fb-8684-ff109cf15a74<div class="ExternalClassE47C52A23E484A078140E27DB7568163">The Delta-based Annacis Island Wastewater Treatment Plant, which serves 1.25 million people, is undergoing major upgrades to meet Metro Vancouver's growing population. Metro Vancouver has awarded a $252-million contract to Graham/AECON for the first phase of the upgrade project, which includes additional primary sedimentation tanks, solids contact tanks, and secondary clarifiers as well as improved odour control systems at the plant. It also includes seismic improvements.</div>0