Changes

[[File:Screeningprocessdiagram.png|thumb|700 px|Process Diagram for Screening LID Options]]

[[File:Screeningprocessdiagram.png|thumb|700 px|Process Diagram for Screening LID Options]]

This guidance article intends to help reduce the number of LID options in the preliminary phases of design and to alert the designer to LID opportunities unique to the site-type being assessed. When going through the process of screening LID options, it is important to have a larger contextual understanding of [[Integrated water management]], [[Site design strategies]], [[Siting and layout of development]], and [[Link title]].

This guidance article intends to help reduce the number of LID options in the preliminary phases of design and to alert the designer to LID opportunities unique to the site-type being assessed. When going through the process of screening LID options, it is important to have a larger contextual understanding of [[Integrated water management]], [[Site design strategies]], and [[Siting and layout of development]].

== Site Conditions ==

== Site Conditions ==

===Performance requirements===

===Performance requirements===

Resources for evaluating LID practices within Ontario can be found at [http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/ Sustainable Technologies Evaluation Program (STEP)] and [http://www.creditvalleyca.ca/low-impact-development/lid-maintenance-monitoring/lid-monitoring-sites/ Credit Valley Conservation's LID Monitoring program]. For a global perspective on LID performance across various geographical regions, check out the [http://www.bmpdatabase.org/index.htm International Stormwater BMP Database]. Performance data can be downloaded or uploaded and statistical analysis tools are provided.

Resources for evaluating LID practices within Ontario can be found at [http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/ Sustainable Technologies Evaluation Program (STEP)] and [http://www.creditvalleyca.ca/low-impact-development/lid-maintenance-monitoring/lid-monitoring-sites/ Credit Valley Conservation's LID Monitoring program]. For a global perspective on LID performance across various geographical regions, check out the [http://www.bmpdatabase.org/index.htm International Stormwater BMP Database]. Performance data can be downloaded or uploaded and statistical analysis tools are provided.

==Assess effectiveness==

==Assess effectiveness==

After selecting a suite of BMPs and running the models, make a comparison between the modelling results results and the environmental design criteria. Employ nn iterative approach, which involves adjusting the size or adding/deleting BMPs until the environmental design criteria are met. The [http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/ LID Treatment Train Tool] can help with adjusting the size of the features to meet design criteria. Once met, the project can proceed to the detailed design stage.

After selecting a suite of BMPs and running the models, make a comparison between the modelling results results and the environmental design criteria. Employ nn iterative approach, which involves adjusting the size or adding/deleting BMPs until the environmental design criteria are met. The [http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/ LID Treatment Train Tool] can help with adjusting the size of the features to meet design criteria. Once met, the project can proceed to the detailed design stage.