A PLAN FOR RAINY DAYS: “An exacting attention to natural patterns was a core innovation of the Fused Grid and Water Balance approaches,” stated Fanis Grammenos, former Senior Researcher with the Canada Mortgage & Housing Corporation, and an urban sustainability thinker

“In 2004, the City of Stratford in Ontario approved a secondary plan for a future city expansion based on an evaluation of three plans, one of which was the Fused Grid. In 2006, CMHC initiated a supplementary case study to assess the potential for reducing or eliminating rainwater runoff from the development area,” reports Fanis Grammenos. “The question for this analysis was to assess to what extent street layout, amount and distribution of open space, and building form affect the post-development runoff resulting from the impermeable surfaces that urban development creates.”

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FLASHBACK TO 2004: An approval by Agricultural Land Commission for Home Depot project in Courtenay required use of “Water Balance Model for British Columbia” to establish, test and meet performance targets for capturing rain on-site, where it falls, to protect agricultural lands downhill

The Home Depot project was one of the earliest applications of the Water Balance Methodology pursuant to the Stormwater Planning Guidebotok. “In 2003, the Home Depot development application in the City of Courtenay was to build a store and parking lot covering 90% of a four hectare second growth coniferous forest property,” stated Kevin Lagan. “The City required that post-development rainwater and stormwater flows leaving the site were equal to or less than the pre-development flows. For this property that was effectively zero.”

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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.

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