ABT Presents: A Symposium: Stormwater, A Valuable Resource

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Pearson Convention Centre

2638 Steeles Avenue East

Brampton, ON L6T 4L7


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Promoting Low Impact Development by Designing Resilient Landscapes and Sustainable Cities through Creative Stormwater Management

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Resilient Cities, Sustainability, Low Impact Development, Biodiversity. The presentations will cover the impact of designing with new regulations regarding stormwater infiltration, pre & post development, controlled discharge, passive irrigation and the re-use of stormwater as a resource. Reducing the amount of stormwater discharging into existing infrastructure.

Sustainable urban forestry programs utilizing stormwater; green / blue roof design and benefits; variable methodology to keep stormwater shallow to provide the greatest benefits to society and modeling of design for best management of stormwater.


The concept of utilizing stormwater as a resource for passive irrigation, evaporative cooling, infiltration, low impact development, sustainability, urban forestry, sportsfields, biodiversity.

The presentations will cover alternative stormwater management designs to assist with water balance and usage, controlled discharge, green / blue roofs, shallow conveyance, proper field capacity for urban forestry programs and root zone protection.


8:00 am: Registration – Coffee / Snacks

9:00 am: Opening Comments – Neil Courneya – ABT Permavoid

9:15 am: Designing differently at the surface – Neil Courneya

10:00 am: Break

10:15 am: The Blue-Green Revolution – Start on the Roof ! – Joris Voeten

11:00 am: Civil Applications – Slow It / Store It / Sink It… or… Re-Use It! – Steve Williams

11:45 am: The Benefits of Evapotranspiration – Joris Voeten

12:00 pm — Lunch Provided

12:45 pm: Urban Tree Designs for Water Management – Steve Williams & Joris Voeten

1:30 pm: Urban Landscape Designs – Steve Williams

2:00 pm: Break

2:15 pm: Water Balance Modeling – Dennis Westhoff

2:45 pm: How to Design for Creative Water Management – Steve Williams

3:30 pm — 5:30 pm: Reception


Joris Voeten:

With an MSc in Tropical Forestry from Wageningen University in the Netherlands, Joris translates his knowledge of plant and tree growth to create livable and green cities. Worldwide, people move to cities and sufficient and high quality green infrastructure in the urban environment is essential to create livable cities for tomorrow, today.

Joris develops functional green space for cities by designing durable tree-pit growing sites in dense and hardscaped urban areas and by creating innovative usable and multifunctional green space on rooftops. Energy reduction, storm water attenuation, material re-use, biodiversity, urban heat island mitigation and local circular processes play a key role in all of the designs and concepts.

Steve Williams:Steve received his Bachelors of Science degree in Civil Engineering in 2005. During his studies he was an engineering tutor, ASCE student chapter president, and worked for the New York State Department of Transportation. After University Steve went on to work for ABT, Inc, a leading manufacturer of storm water management systems as the

Regional Manager for the Northeastern United States. Over the last 5 years he has served as the Director of Environmental Products, consulting with design professionals on effective storm water management solutions with an emphasis on water conservation and green infrastructure.

Dennis Westhoff:

Dennis is founder, chief engineer and visionary of Westhoff Engineering Resources, Inc. and with his team has developed the Westhoff Water Balance Model (WWBM). WWBM is a standalone runtime utility comprised of various elements to portray the physical properties of natural and man-made systems involved in water management. Simulation results, using past observed climate data, are used for project planning, water management and operational analysis.WWBM is readily usable by the consulting industry in support of the Master Drainage Plan (MDP),Staged Master Drainage Plan (SMDP), Pond Reports and Stormwater Management Reports. WWBM conists of user friendly interface panels along with underlying computational equations. The user enters appropriate data, selects computational equations and invokes simulations.

Neil Courneya:

Neil Courneya has been involved with Advanced Building Technologies Inc since 1987 with a focus on Stormwater Management through continuous inlet systems. He has presented courses for ASHREA, ASPE, CSCE, ASCE across North America for the past 20 years, covering hydraulic and hydrological applications. Neil’s major focus is now on complete Stormwater Management Systems for both surface and subsurface applications emphasizing Low Impact Development, Sustainable Infrastructure and the Re-use of Stormwater as a valuable resource.

Philip van Wassenaer:

Philip van Wassenaer, B.Sc., MFC, is the Principal Consulting Arborist and Founder of Urban Forest Innovations Inc. As an International Society of Arboriculture (ISA) Certified Arborist, an American Society of Consulting Arborists (ASCA) Registered Consulting Arborist (RCA) and urban forestry consultant with over 25 years of experience, he has built a reputation for his research, professional ethics and innovation.

Philip is a leading expert in Conservation Arboriculture, an ecosystem approach to understanding and managing trees. He has worked on many local, national and international projects. These include the development of fifteen Urban Forest Management Plans, pest management strategies, tree protection and planting specifications for urban areas, tree risk assessments and tree inventories.

In 2009, Philip was awarded the “True Professional of Arboriculture” award by ISA in recognition of his achievements towards advancing the practice of arboriculture and his commitment to public education and promotion of the latest developments in arboricultural science.

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Pearson Convention Centre

2638 Steeles Avenue East

Brampton, ON L6T 4L7


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