Public Notice

Maintenance dredging – Metro Vancouver Langley Outfall – Public comments invited

September 16, 2025 – The Vancouver Fraser Port Authority and Environment and Climate Change Canada must determine whether the proposed Maintenance dredging – Metro Vancouver Langley Outfall, located at 103201 – 201 Street, Langley, BC is likely to cause significant adverse environmental effects. 

To help inform this determination, the Vancouver Fraser Port Authority and Environment and Climate Change Canada are inviting comments from the public respecting that determination. All comments received will be considered public and may be posted online. For more information, individuals should consult the Privacy Notice on the Registry website. In addition, your contact information may be shared with third parties, e.g., the tenant, other relevant agencies, to help respond to your questions and inform possible mitigations.

Written comments must be submitted by October 15, 2025 to:

Vancouver Fraser Port Authority
Project and Environmental Review
100 The Pointe, 999 Canada Place
Vancouver, B.C. Canada V6C 3T4
per@portvancouver.com

Environment and Climate Change Canada
401 Burrard Street
Vancouver, BC V6C3R2
eerpy-eapyr@ec.gc.ca

The proposed project

The proposed project consists of maintenance dredging to remove accumulated sediment from the Langley wastewater treatment plant effluent outfall pipe. Periodic maintenance dredging is required to remove accumulated sediment from areas on either side of and around the terminus of the outfall pipe.

Proposed works:

• Mobilization of a clamshell dredge, a marine spud derrick and material barges to the site
• Dredge no more than 4000 cubic metres per year in an area of roughly 1800 square metres
• Determine the outfall location by GPS and divers. Divers would mark the pipe alignment with Scotchman buoys to serve as a visual reference for the clamshell dredge
• Extract sediment parallel to the pipe to create a trench approximately 2 to 3 metres wide along either side of the outfall pipe and approximately 4 metres wide at the outfall terminus
• Divers will use a high-volume low-pressure jet pump to push accumulated sediment from the top of the outfall into the trenches. The clamshell bucket will excavate the filled trenches.
• Load the material barge and tow via tugboat down the Fraser River to the Point Grey Disposal at Sea site for disposal in accordance with a valid Disposal at Sea Permit pursuant to the provisions of Part 7, Division 3 of the Canadian Environmental Protection Act, 1999
• The empty barge(s) will then be transported back to the project location and loaded again the next day, if required

The proposed works are expected to occur no more than three days per dredge event. Ongoing maintenance dredging is anticipated to be conducted, as needed.