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DOWNLOAD: Stormwater Planning: A Guidebook for British Columbia


"Released in 2002, the Guidebook provides a framework for effective rainwater management throughout the province. This tool for local governments presents a methodology for moving from planning to action that focuses on implementing early action where it is most needed," states Laura Maclean.

“Understand How Water Reaches the Stream and Design for Interflow”, urges Department of Fisheries and Oceans


“Interflow is often the dominant drainage path in glaciated landscapes of British Columbia. Even undeveloped sites founded on till and bedrock rarely show overland flow because of interflow pathways. The lesson is that the interflow system is an incredibly important and yet fragile component of a watershed. It is critical for maintaining stream health and our fishery resource,” states Al Jonsson of DFO.

Water Balance Model – On Tour!


"Have a look at some of the Water Balance Model slideshow presentations that have been made to industry and government groups starting in 2001. This includes some of the early presentations on the Water Balance Methodology that helped pave the way for the paradigm-shift from 'peak flow thinking' to 'volume-based thinking'. The many presentations created awareness and influenced expectations," stated Kim Stephens.

Metro Vancouver Close Up (Video Series): District of North Vancouver’s Geoweb application is a useful tool for the public and municipal staff

“I get property owners almost every day with questions, queries, comments. – I can quickly go into Geoweb and bring that property up right away and not only take a look at the property, but I can take a look at the details. I use it daily. I don’t even think about it. It’s like email, I’m into Geoweb virtually every day," reports Mayor Richard Walton.

Leading Change in BC: 10 years ago, the late Don Moore showcased a vision for green infrastructure at the “Let It Rain Conference”

“A new community is emerging in northeast Coquitlam at Burke Mountain. A key feature of planned development at Burke Mountain is a low impact, ‘natural systems approach’ to rainwater management. This approach will strive to preserve the natural water balance. In simple terms this means designing to get stormwater into the ground and to keep it out of the pipes,” stated Don Moore.

Tree Canopy Interception of Rainwater Under Interior BC Conditions: Kamloops Research Project Fills Gap in Science-Based Understanding

“This study builds on precedent-setting research in British Columbia, filling gaps in science-based understanding of tree canopy processes and promoting translation of the science to application through tools such as the Tree Canopy Module of the Water Balance Model," reported Julie Schooling. "The study identified factors that have not previously been analyzed – for example, the role of multiple leaders in a canopy vs. a strong single leader."

Flashback to 2012: British Columbia Partnership announced that rebuilt “Water Balance Model” incorporates Tree Canopy Module

“Given the huge knowledge bases that the sciences have built up around the hydrology of urban watersheds, it can come as a surprise when we realize how little is known about some of the basics. The urban tree canopy is an example,” stated Dr. Charles Rowney. “This is a technical area where the fundamentals are well understood, but the empirical basis, the availability of actual observations, is still in its infancy."

FLASHBACK TO 2004: Sustainable Community Design: A New Approach to Rainwater Management (an article published by Innovation Magazine)

"BC stormwater criteria and tools are receiving increasing recognition across North America because of their unique emphasis on solving both flooding and environmental problems at the source. This rethinking of traditional approaches to urban hydrology is helping to achieve higher levels of stream protection by integrating land use planning with volume-based strategies," wrote Kim Stephens in 2004.

Metro Vancouver Close Up (Video Series): Delta Rain Gardens Put Precipitation on a Slow Road to the Ocean

Rain gardens are being created with the collaboration of the municipality and volunteers, in a wide variety of locations from parking lots to schools. “It’s just a win-win all the way around,” says Mayor Lois Jackson. “And it really leads into the future where urban areas can still be good places of habitat for fish and birds and bees and all those creatures that we seem to miss in a lot of urban areas.”

Voodoo Hydrology: Andy Reese shares his experience and wisdom in an Annual Webinar Series

For years practitioners have relied upon common urban stormwater hydrologic design methodologies and trusted their results. But, should they? Join returning speaker Andy Reese as he exposes the black box of urban hydrology. In this webinar, Andy (with his normal humor) “lays bare” the popular urban stormwater methodologies, as well as their key elements, assumptions, most common misuses, and proper application.

Regulatory Context for Integrated Watershed-Based Planning in the Metro Vancouver Region

“Member municipalities will develop a coordinated program to monitor stormwater and assess and report the implementation and effectiveness of Integrated Storm Water Management Plans (ISMP). Metro Vancouver and member municipalities are encouraged to have land use planning consider the direction provided by the ISMPs. Coordination with municipal planners will be important to successful integration," wrote Environment Minister Terry Lake.

Delta’s Corporate Vision for Watershed-Based Planning: Rain Garden Program Contributes to Restoration of Watershed Health

“Delta has completed three watershed-based plans, known as Integrated Stormwater Management Plans or ISMPs. Our urban areas are built out. This reality means there are limited opportunities for slowing, spreading and sinking rainwater. We are effectively limited to retrofitting of rain gardens within road corridors in order to provide rainwater infiltration that protects stream health," states Hugh Fraser.