From higher inflow volumes overwhelming the capacity of a wastewater treatment plant (WWTP) to reduced treatment efficiency due to temperature changes, the changing climate significantly impacts this critical infrastructure. Identifying potential risks and implementing measures to strengthen the climate resilience of WWTPs can help maintain their effective operations and protect the environment and the health of people living in Canada.

The National Standard of Canada, CSA S900.1:18 (R2023), Climate change adaptation for wastewater treatment plants, provides a comprehensive, user-friendly framework and checklist tool for implementing climate change considerations into the design, construction, maintenance, and operation of WWTPs to increase their resilience.

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