Category Archives: Liquid Waste

The Northwest Langley WWTP, which serves 30,000 people in Langley, will be expanded to serve 230,000 people, including residents and businesses in Maple Ridge and Pitt Meadows. In addition, the plant will be upgraded to tertiary treatment.

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Annacis Island WWTP is undergoing a range of improvements, including replacing the equipment inside the trickling filters. But first, the massive dome atop a trickling filter - the size of an Olympic-sized pool weighing 30 full size vehicles - has to be removed.

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Combined sewers carry sewage and stormwater in a single pipe. Combined sewers work well during dry weather, but during heavy rain can fill up with more water than they can handle. Combined sewers were designed to overflow directly into the nearest body of water to prevent back ups into homes and businesses. While combined sewers are no longer being built, municipalities and Metro Vancouver are replacing combined sewers with separate sanitary and storm sewers.

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Metro Vancouver provides the vital services and solutions that are the foundation of our economic, ecological and social health. Learn more about these services and how they protect the livability of our region. (video produced in 2019)

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Metro Vancouver is future-proofing the facilities we all depend on, as population growth and climate change bring fresh challenges to critical regional systems. New construction, upgrades to existing infrastructure, planning, and maintenance projects were all part of those efforts in 2019. (video produced in 2019)

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Every year billions of litres of wastewater is processed worldwide. The byproduct of this treatment is seen as waste, but a hydrothermal processing pilot project at Annacis Island Wastewater Treatment Plant converts wastewater biomass from treatment plants into biocrude oil that can be refined to a low carbon transportation fuel. (video produced in 2019)

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It’s late at night and sewer flows are low, so this specialized diving team is heading into a Metro Vancouver sewer main to locate cracks. It’s the first step in a new repair technique that takes place above ground, without excavations. It is extremely cost effective and is a first in North America.

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Crews faced a unique and challenging task as part of the Annacis Island WWTP Stage 5 Phase 1 construction project. The solution involved two stacked shipping containers welded together to divert wastewater flows on a live channel tie-in in the primary effluent channel.

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The radial arm floodgates - also known as Tainter gates - on the Cariboo Dam are used to control water levels on Burnaby Lake and regulate flows to the Brunette River. After more than 80 years of operation the gates received an upgrade.

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The location for the new Crescent Beach Force Main in Mud Bay, Surrey, BC requires crews to time their activities with low tides and daylight hours as they do preparatory soil testing in advance of tunnel drilling activities. It's part of a project that conveys wastewater from South Surrey, White Rock and Crescent Beach to the Annacis Island Wastewater Treatment Plant.

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