Northwest Langley Wastewater Treatment Plant Program

Metro Vancouver is undertaking the Northwest Langley Wastewater Treatment Program to continue to protect public health and the environment in a growing region.​

The improvements are being done to:

• Meet the needs of our growing population
• Help prevent untreated wastewater back-ups and overflows
• Strengthen the plant to ensure it will continue to operate in the event of an earthquake
• Adapt to sea level rise from climate change
• Reduce treatment plant water and energy use
• Treat wastewater using tertiary filtration​​
  

A​bout the program​​​

The Northwest Langley Wastewater Treatment Plant, which currently serves 30,000 people, is being expanded to serve over 280,000 people, including residences and businesses in the Township of Langley, Maple Ridge, Pitt Meadows and North Surrey. The plant expansion is one of several projects taking place to improve the sustainability and resilience of wastewater treatment in the region.

Untreated wastewater from Maple Ridge and Pitt Meadows currently flows to the Annacis Island Wastewater Treatment Plant in Delta. To divert the flows to the Northwest Langley Wastewater Treatment Plant, a new pump station is being built north of the Fraser River in Maple Ridge. Two new sewer pipes are being constructed under the Fraser River to connect the pump station in Maple Ridge to the upgraded treatment plant in Township of Langley​. A new storage tank, located ​within the pump station, will temporarily store wastewater to significantly reduce overflows during heavy rain.​​​​