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Rainwater Management

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Celebrating Green Infrastructue Program: Showcasing Innovation Series Launched in Greater Vancouver Region

The “Celebrating Green Infrastructure Program” is an outcome of a Consultation Workshop that was organized by the Green Infrastructure Partnership in May 2005. The goal of the program is to build regional capacity through sharing of green infrastructure approaches, experiences and lessons learned as an outcome of ‘designing with nature'. The program was launched in May 2006 when the first event in the 'Showcasing Innovation Series'was hosted by the District of North Vancouver. The Greater Vancouver program is a provincial pilot. The intention is that local governments on Vancouver Island and in the Interior will undertake similar initiatives.

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Rainwater Management Community-of-Interest:


COI Table of Contents – updated December 2009
This Community-of-Interest is the web-delivery vehicle for informing practitioners about the latest advancements in the state-of-the-practice for rainwater management.

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Water Balance Model insights inform New Zealand delegation


“The key is what we do at the site scale because our actions over time can either have cumulative impacts or cumulative benefits. Drawing on the District’s GIS resources, I was able to identify representative properties from different eras – 50 years ago and today – to illustrate how the current approach to site development results in dramatically greater volumes of surface volume,” stated Richard Boase.

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Landscape Irrigation Scheduling Calculator

The Irrigation Industry Association of British Columbia (IIABC) has developed this Landscape Irrigation Scheduling Calculator to assist irrigators in developing a proper irrigation schedule taking into account the location, landscape, soil and irrigation system operation parameters. The calculator will provide the irrigator with the number of days to water, the irrigation run time for each day and the maximum run time per cycle.

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Water Balance Model

Developed by a BC-based Inter-Governmental Partnership as an extension of Stormwater Planning: A Guidebook for British Columbia, the Water Balance Model for Canada enables users to compare scenarios for rainwater runoff volume reduction in order to achieve a light 'hydrologic footprint'. The tool is developed by a consortium of local, regional, provincial and federal agencies.

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Drainage Planning in Britsh Columbia:

From a drainage planning perspective, “Sustainability” means Design with Nature to improve the Built Environment while at the same time protecting the Natural Environment. The desired outcome is to sustain community livability.

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Stormwater Planning: A Guidebook for British Columbia (released in 2002)


Founded on British Columbia case study experience, the Guidebook formalized a science-based understanding to set performance targets for reducing rainwater runoff volumes and rates. These targets represent the synthesis of biological and hydrological understanding. Structured to meet the information needs of different audiences, the Guidebook formalized the ‘Integrated Strategy for Managing the Complete Spectrum of Rainfall Events’,

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Water Balance Model for British Columbia: Land development and watershed protection can be compatible

“Stormwater Planning: A Guidebook for British Columbia” formalized a science-based understanding to set performance targets for reducing rainwater runoff volumes and rates. These targets represent the synthesis of biological and hydrological understanding. At the heart of the Guidebook is the Water Balance Methodology. Recognizing that practitioners and others needed a tool so that they could readily apply the Methodology, the Inter-Governmental Partnership then developed the Water Balance Model for British Columbia.

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Water Balance Model in the Class Room: Interest stretches from coast-to-coast!

The British Columbia-based Inter-Governmental Partnership is reaching out to academia to bring the Water Balance Model into university classrooms. The University of British Columbia and the University of Calgary are the first post-secondary institutions to incorporate the Water Balance Model in undergraduate and master's level courses, respectively. Dalhousie University in Halifax and the University of Guelph in Ontario have also expressed interest in using this scenario modeling and decision support tool.

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