Changes

"An integrated design process (IDP) involves a holistic approach to high performance building design and construction. It relies upon every member of the project team sharing a vision of sustainability, and working collaboratively to implement sustainability goals. This process enables the team to optimize systems, reduce operating and maintenance costs and minimize the need for incremental capital. IDP has been shown to produce more significant results than investing in capital equipment upgrades at later stages."<ref>Natural Resources Canada. The integrated design process. http://www.nrcan.gc.ca/energy/efficiency/buildings/eenb/integrated-design-process/4047. Accessed September 12, 2017.</ref>}}

"An integrated design process (IDP) involves a holistic approach to high performance building design and construction. It relies upon every member of the project team sharing a vision of sustainability, and working collaboratively to implement sustainability goals. This process enables the team to optimize systems, reduce operating and maintenance costs and minimize the need for incremental capital. IDP has been shown to produce more significant results than investing in capital equipment upgrades at later stages."<ref>Natural Resources Canada. The integrated design process. http://www.nrcan.gc.ca/energy/efficiency/buildings/eenb/integrated-design-process/4047. Accessed September 12, 2017.</ref>}}

Ryerson Urban Water have a free modeling tool for neighbourhood scale integrated water resources evaluation. Check it out at http://iwret.ryerson.ca/.  

The Ryerson Urban Water group has developed a free modeling tool for neighbourhood scale integrated water resources evaluation. View the tool at http://iwret.ryerson.ca/.  

==Introduction==

==Introduction==

Historic approaches to stormwater management – which initially focused on conveyance, followed by flood control and eventually some aspects of water quality – failed to address the full range of water resources related issues associated with stormwater runoff. To adequately deal with changes to the volume, rate and timing of runoff, and to design source, conveyance and end-of-pipe controls capable of satisfying groundwater recharge, [[water quality]], variable environmental flow targets, and other goals, a holistic, integrated approach to stormwater planning and management is required. To achieve this, a robust, interdisciplinary team consisting of infrastructure [[Category:Planning|planners]], water resources [[Engineering_hub|engineers]], geomorphologists, [[Hydrogeology_hub|hydrogeologists]], ecologists, fisheries biologists, [[Landscape_hub|landscape architects]] and others must come together in order to define key targets and resource management goals underpinning the one water approach.

Historic approaches to stormwater management – which initially focused on conveyance, followed by flood control and eventually some aspects of water quality – failed to address the full range of water resources related issues associated with stormwater runoff. A holistic, integrated approach to stormwater planning and management is required Tto adequately deal with changes to the volume, rate and timing of runoff, and to design source, conveyance and end-of-pipe controls capable of satisfying groundwater recharge, [[water quality]] and variable environmental flow targets. To achieve this, a robust, interdisciplinary team consisting of infrastructure [[Category:Planning|planners]], water resources [[Engineering_hub|engineers]], geomorphologists, [[Hydrogeology_hub|hydrogeologists]], ecologists, fisheries biologists, [[Landscape_hub|landscape architects]] and other disciplines must come together in order to define key targets and resource management goals underpinning the one water approach.

==The one water approach==

==The one water approach==

The one water approach is predicated on the fact that drinking water, wastewater and stormwater systems share intrinsic connections, and that none of these systems can be managed in isolation from one another. The ultimate goal of the one water approach is to mimic the natural hydrologic cycle. The figure to the right illustrates how different hydrologic components are altered as progressive urbanization occurs.  

The one water approach is predicated on the fact that drinking water, wastewater and stormwater systems share intrinsic connections, and that none of these systems can be managed in isolation from one another. The ultimate goal of the one water approach is to mimic the natural hydrologic cycle. The figure to the right illustrates how different hydrologic components are altered as progressive urbanization occurs.  

In the natural hydrologic cycle, [[evapotranspiration]] and [[infiltration]] are the dominant pathways within the hydrologic cycle, and as a result this condition produces relatively little runoff. In urban environments, a rise in impervious surfaces coupled with a net loss of [[vegetation]] (interception storage and evapotranspiration) and the implementation of a dense storm sewer network significantly reduce evapotranspiration and infiltration and produce large amounts of urban runoff in much shorter timeframes. Within the urban water balance, piped and/or pumped potable water and wastewater discharges are also represented within the cycle.

In the natural hydrologic cycle, [[evapotranspiration]] and [[infiltration]] are the dominant pathways within the hydrologic cycle, and as a result this condition produces relatively little runoff. In urban environments, a rise in impervious surfaces coupled with a net loss of [[vegetation]] (interception storage and evapotranspiration) and the implementation of a dense storm sewer network significantly reduces evapotranspiration and infiltration processes and produce large amounts of urban runoff in much shorter timeframes. Within the urban water balance, piped and/or pumped potable water and wastewater discharges are also represented within the cycle.

==Water resource management in Ontario==

==Water resource management in Ontario==