“Our focus was on the technical details of practices in landscape areas that treat rainwater through plant materials and soils by infiltration, retention, detention and evapotranspiration”, states Ed von Euw. “The objective of this project was to reduce information barriers that previously stood in the way of effective implementation of rainwater source controls.”
Stormwater Planning: A Guidebook for British Columbia
Released in 2002, ‘Stormwater Planning: A Guidebook for British Columbia’ has proven to be a catalyst for action
When it was released, the Guidebook was a catalyst for action to implement a ‘design with nature’ approach to rainwater management and green infrastructure. “The premise underpinning the Guidebook was that land development and watershed protection can be compatible. The basis for this premise was that municipalities exert control over runoff volume through their land development and infrastructure policies, practices and actions,” states Peter Law. “The Guidebook applied a science-based understanding to develop the water balance methodology and establish performance targets.”
The ISMP Template provides a standardized process that includes all of the key components for rainwater and stormwater management. These are categorized in terms of three disciplines – engineering, planning and environmental. “A municipality can decide which components are applicable, and can establish the level of effort required based on risk and local conditions. Not all of the components may be relevant for a given watershed or drainage catchment,” states Robert Hicks.
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’,