Wastewater System

The Wastewater Treatment Plant services more than 23,000 people in Squamish every day and treats about 3.4 billion litres of wastewater (or sewage) every year.

Wastewater is treated using either primary or secondary treatment processes.

During treatment, wastewater is tested to ensure that treatment plant processes are working effectively and meeting regulations. Treated wastewater (effluent) is then released into the Squamish River. 

Upgrades to the Wastewater Treatment Plant are currently underway to help meet the demands of Squamish's growing community as well as maintain compliance with Federal and Provincial wastewater treatment regulations. Once construction is complete, the new plant should sustain population growth until approximately 2040 and will provide post-disaster operability and withstand seismic and flood events. 

Upgrades to the WWTP were initiated following the 2015 Liquid Waste Management Plan and the 2018 Sewer Master Plan.

Flush Facts



pool and hot tub
Residential Hot Tub and Pool Drainage Guidelines

How to drain your pool or hot tub without harming the environment.

Learn More
feature flush
Waste Water Collection

How it all flows... and what should never enter the waste water system.

Learn More
Waste Water Treatment

We take all complaints of odour seriously. If you think it smells, please report it.

Learn More
sewage truck on worker pumping feces out of rental toilet for disposal and cleaning at the t20 P01wp8
Trucked Liquid Waste

Septage Receiving Station available for qualified carriers to dispose of liquid waste.

Learn More