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Stantec awarded a study from The Water Research Foundation to advance research in triple bottom line assessments of green stormwater infrastructure installations

Team to focus on the triple bottom line economics of green infrastructure practices to guide future planning, development, and redevelopment


Stantec has been awarded a study from The Water Research Foundation (WRF) to strengthen the business case for utilities and municipalities to evaluate, compare, and demonstrate benefits of green stormwater infrastructure (GSI) additions into their stormwater management portfolio. The project, titled Advancing Benefits and Co-Benefits Quantification and Monetization for Green Stormwater Infrastructure: An Interactive Guidebook for Comparison Case Studies (WRF 5105), will assist utility leaders to make better, data-driven decisions supported by financial frameworks and supporting analytical tools.  

Municipalities and utilities are facing challenges arising from more stringent water quality and quantity

standards, aging infrastructure, and population growth that is impacting the timing and feasibility of capital improvement projects with limited resources. These must be addressed while ensuring reliable stormwater management services, protecting the public from flooding, and ensuring that service charges are affordable and equitable to all users. Given the impacts of climate change on the timing, frequency, and magnitude of extreme wet weather impacts, the role and importance of stormwater management is amplified.

Today, the use of traditional piped drainage systems is increasingly being supplemented with GSI. “Green stormwater infrastructure not only provides the technical, stormwater-related functions, but can provide multiple co-benefits not directly linked to its management. We are seeing air quality improvements, energy savings and carbon sequestration, added recreational amenities, and health benefits, as well as increased property values in communities that have added GSI,” said Bernadette Callahan, Stantec’s green infrastructure sector leader.

Quantifying and monetizing triple bottom line (TBL) benefits attributable to GSI is imperative in evaluating future stormwater investments as it allows for a direct comparison of all costs and benefits for various infrastructure alternatives. This new study aims to build upon two recently completed WRF decision support tools – Community-enabled Lifecycle Analysis of Stormwater Infrastructure Costs (CLASIC) and Economic Framework and Tools for Quantifying and Monetizing the Triple Bottom Line Benefits of Green Stormwater Infrastructure (WRF 4852).

Bernadette Callahan will serve as principal investigator with co-principal investigator Eric Bill of Autocase Economic Advisory to synthesize comparison case studies at a variety of scales and geographies through these two tools. Results will be summarized in a user-friendly guidebook, including GSI cost and benefit quantification, upfront capital costs, operation and maintenance costs, and other lifecycle costs to allow for better cross-comparison at the national scale. In addition, the team will advance the practice of benefits and co-benefits quantification by identifying and prioritizing current unmet research needs. “Green infrastructure supports urban resilience. Now more than ever, to be prosperous, cities will need to be resilient,” noted Callahan.

The research team will be further supported by a wide range of utilities and municipalities across North America, including the Green Infrastructure Leadership Exchange, City of Saint Paul, the Metropolitan Sewer District of Greater Cincinnati, City of Phoenix, the District of Columbia, EPCOR (Canada), and the City of Kitchener (Canada).

The project is expected to be completed by the summer of 2023.

A sustainable water future is complex and dynamic. By viewing water as an integrated system, Stantec is helping to confront global water challenges and accelerate the pathway to a more sustainable, reliable, and affordable future that provides improved water, energy, and infrastructure solutions. Learn more at

About Stantec
Communities are fundamental. Whether around the corner or across the globe, they provide a foundation, a sense of place and of belonging. That’s why at Stantec, we always design with community in mind.

We care about the communities we serve—because they’re our communities too. This allows us to assess what’s needed and connect our expertise, to appreciate nuances and envision what's never been considered, to bring together diverse perspectives so we can collaborate toward a shared success.

We’re designers, engineers, scientists, and project managers, innovating together at the intersection of community, creativity, and client relationships. Balancing these priorities results in projects that advance the quality of life in communities across the globe.

Stantec trades on the TSX and the NYSE under the symbol STN. 

For more information about Stantec’s response to COVID-19, visit Responding to COVID-19.

About The Water Research Foundation
The Water Research Foundation (WRF) is the world’s leading research organization advancing the science of all water to meet the evolving needs of its subscribers and the water sector. WRF is a nonprofit, educational organization that funds, manages, and publishes research on the technology, operation, and management of drinking water, wastewater, reuse, and stormwater systems—all in pursuit of protection of public health and the environment. For more information, visit

Media Contact
Toni Fink
Stantec Media Relations
Ph: (216) 298-0708

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