​Project Overview

Metro Vancouver is proposing to double its capacity to access, treat, and distribute water from Coquitlam Lake, the largest of the three drinking water sources, through the construction of the Coquitlam Lake Water Supply Project. Planning is currently underway for the design of a new water intake, a water supply tunnel, and water treatment facilities.

A recently completed long-term water supply planning study shows there will be enough water in Coquitlam Lake in the mid-2030s to supply the region, but by then new infrastructure will be needed to access that water and meet summer demand.

The Coquitlam Lake Water Supply Project is currently in the Project Definition phase which will help determine the scope of work including the intake location, tunnel alignment, and treatment technology. Construction is expected to begin in the late 2020s, with completion targeted for the late 2030s.

Once complete, this significant infrastructure project will help meet the region’s growing need for drinking water well into the next half century, provide resiliency to address the anticipated impacts of climate change, and provide increased operational flexibility to the existing infrastructure.

  Location: Coquitlam

Coquitlam Lake Water Supply Intake
Potential locations under consideration for Coquitlam Lake Water Supply Project infrastructure


Coquitlam Lake Water Supply Project
  • Working with Our Partners and the Community
    During the Project Definition Phase, Metro Vancouver will work closely with First Nations, Stakeholders, and the public to ensure the project considers their values, concerns, and priorities. Metro Vancouver will:
    • Seek input from interested stakeholders and First Nations on the design of intake with respect to ongoing restoration efforts and protection of fish populations
    • Seek input from interested stakeholders and First Nations on the management of downstream environmental flows to support conservation of aquatic habitat in the lower Coquitlam River
    • Support opportunities to improve preservation of archaeological sites around the shoreline of Coquitlam Lake and in the Coquitlam Watershed
    • Collaborate with First Nations on opportunities to incorporate and enhance Indigenous cultural heritage in the Project area
    • Take feedback to the project team and report back on how it has been addressed

    Stay tuned for engagement opportunities




2017 – 2021True12017 – 2021<div class="ExternalClassAF21ECDB989A4CE58CEC0D23D2323949"><p>Project Definition</p></div>
2021 – Early 2030sFalse22021 – Early 2030s<div class="ExternalClassBBA1F1E5DE894120A00C0A16B1BB637C"><p>Design</p></div>
Late 2020s - Late 2030sFalse3Late 2020s - Late 2030s<div class="ExternalClassF48FDB76D65E4D3D90BF8463EC80AF2D"> <font size="2"> <p>Construction and<br>Commissioning</p></font></div>

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