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Safeguarding the Provision of Drinking Water in a Changing Climate with Integrated Green and Grey Infrastructure: Advances in Treatability Assessment and Source Water Protection

Date: Wednesday, May 3rd, 2023 | Time: 2:00 pm | Location: Macdonald Engineering Building Rm: 497 | Free Hybrid Event

Presented by MONICA EMELKO

*This seminar will be accessible via zoom- Link provided once registered

Join Zoom Meeting

https://mcgill.zoom.us/j/88655882346?pwd=UHNzOHNwZ2ZScVFjemhqdS8wd0ZiZz09 

Meeting ID: 886 5588 2346

Passcode: 565664

Drinking water is one of society's most critical needs and delivery of safe drinking water is a global strategic priority. In 2014, the Intergovernmental panel on Climate Change (IPCC) cited for Water research to conclude that climate change threatens water security not only through source water availability, but also quality. Climate change-exacerbated landscape disturbances such as wildfires, extreme precipitation, and pest infestation can create conditions that lead to source water quality deterioration and/or increased variability, thereby threatening treatability and potentially leading to drinking water service disruptions or even outages. In 2022, IPCC concluded that compound disturbances (e.g., heavy precipitation after wildfire) can pose even greater threats to water security. Traditional approaches to treatment process design have not historically reflected these aspects of hydroclimatic variability. Recent advances in treatability assessment are integral to ensuring that treatment processes are resilient to these increasingly variable conditions and able to provide sufficient quantities of safe potable water.

Given these challenges, international scientific community consensus indicates that sole reliance on in-plant drinking water treatment is insufficient for managing these threats and points to the need for more targeted source water protection. Source water protection through watershed management is thus increasingly advocated, however, guidance for the design and deployment of such initiatives is lacking. In Canada—and much of the world—forested landscapes are critical water-bearing areas. In these regions, forest management—and specifically harvesting—is increasingly promoted to mitigate climate-exacerbated threats to source water quality and treatability. However, it also has the potential to have undesirable impacts on water.

Seeking to safeguard the provision of adequate amounts of safe drinking water by concurrently advancing treatability assessment and contemporary source water protection strategies that are focused on treatability (thereby integrating grey and green infrastructure), the pan-Canadian and internationally-partnered forWater Network was formed to develop innovative solutions for climate change adaptation to ensure drinking water security in Canada. This presentation will summarize the past five years of forWater research and highlight key pan-Canadian insights regarding forest harvesting effects on source water quality and treatability, strategies for improved integrated watershed management, key water quality metrics for linking source water disturbance impacts to treatment challenges and strategies for assessing treatability and managing risks. These initiatives recently resulted in a global first: the inclusion of two new voluntary targets in a recent Canadian Forest Management Plan—the details of this innovation and opportunities to advance upon it will also be discussed.


Monica EmelkoMONICA EMELKO

Monica Emelko is a Professor of Environmental Engineering and Canada Research Chair in Water Science, Technology & Policy at the University of Waterloo, where she also serves as the Director of the Water Science, Technology & Policy Group. In addition, Monica is the Associate Director of Climate Risk, Resilience, and Adaptation at the Waterloo Climate Institute. Monica’s research is focused on drinking water supply and treatment, and risk analysis for public health protection.

She advises the U.S. Environmental Protection Agency (EPA), Health Canada and several Canadian provincial governments on drinking water treatment requirements and health risk assessment. She also collaborates with over a dozen water utilities and conservation authorities across North America.

Monica is the Scientific Director of the forWater NSERC Strategic Network for Forested Drinking Water Source Protection Technologies, a Canada-wide and internationally-partnered research network of academics, water utilities, government agencies, industrial forestry companies, and organizations focused on forest management-based approaches for drinking water source protection.

Monica co-leads the Southern Rockies Watershed Project (SRWP), who were the cited by the Intergovernmental Panel on Climate Change (IPCC) for identifying quality-associated threats from climate change to water security. They were awarded the 2014 Council of the Federation Award for Water Stewardship and an Alberta Emerald Award. In 2016, Monica and SRWP Co-Principal Investigator Uldis Silins were recognized by the Premier for service to the province of Alberta as a first responder during the Horse River wildfire in Fort McMurray.

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