Located on Pender Island, the Cannon Crescent Wastewater Treatment Plant discharges secondary treated wastewater into Swanson Channel through a 204-metre outfall at a depth of 29 metres below sea level. Treated wastewater is monitored monthly for flow, total suspended solids, biochemical oxygen demand, fecal coliform bacteria and nutrients. The quality of the biosolids produced at this treatment plant is also monitored regularly. For more information, please see the Gulf Islands and Port Renfrew Wastewater and Marine Environment Program 2011 Annual Report.