Rainfall Spectrum

FLASHBACK TO 2007: “RAINwater management is about protecting streams, not how much volume can be infiltrated,” stated Corino Salomi, Area Manager, Department of Fisheries & Oceans, when the Beyond the Guidebook program was launched to initiate a course correction in how the DFO Urban Stormwater Guidelines were being implemented in British Columbia

“It helps to look back to understand how we got to here. In 2000, DFO released Urban Stormwater Guidelines and Best Management Practices for Protection of Fish and Fish Habitat. By 2007, however, we had concerns about how the document was being interpreted and applied. ‘Beyond the Guidebook 2007’ represented the initial course correction,” stated Corinio Salomi. The Partnership for Water Sustainability has since released two more in the Beyond the Guidebook Series – in 2010 and 2015.

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THE STORM OF THE CENTURY COULD SOON HAPPEN EVERY YEAR: “The timescale [for major storms] is changing dramatically, and may become irrelevant in categorizing storms,” says Mandy Ikert, Director, Water and Adaptation Initiative – C40

A UN report warns extreme weather events that historically happened about once in 100 years could hit coastal cities yearly by 2050. Cities need to prepare now. “This is a wake-up call that we still need to do more to mitigate as much [climate impact] as possible. We’re not going back to normal—whatever normal once was,” stated Mandy Ikert. She says reports like this one are important: They help rally support from larger nations and financial institutions for protecting all cities from the effects of climate change.

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Restoring the Water Balance: What happens on the land matters!

“In 2002, the Guidebook transformed conventional wisdom with the premise that land development and watershed protection can be compatible. This breakthrough resulted from application of science-based understanding to mitigate seasonal changes in the Water Balance. A decade and a half later, Beyond the Guidebook 2015 is similarly transformational with its premise that protecting Water Balance Services saves communities money and restores aquatic habitats!”, wrote Peter Law.

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Well, What is Rainwater Management, Really?

“The technical language is in transition. The single function view of traditional 'stormwater management' is giving way to the integrated and comprehensive perspective that is captured by the term 'rainwater management'” states Kim Stephens.

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