Metrics that Matter: Evaluating Green Stormwater Infrastructure Performance
May 26 at 12:00 PM
Green stormwater infrastructure (GSI) is being implemented with greater and greater frequency throughout the country in order to meet water quality goals, enhance our communities, improve
climate change resiliency, and even reduce costs. It is considered an important tool for communities addressing source reduction, particularly under the recent municipal consent orders distributed to communities by the Allegheny County Health Department and PA Department of Environmental Protection. But how do owners and/or operators know if the GSI is doing what it was designed to do? During this session, stormwater program managers, governments, community organizations, and even design professionals will learn methods for assessing the effectiveness of GSI and the complexities and compromises that should be considered when performing an assessment of installed GSI practices. To that end, this presentation will explore the “metrics that matter” for every stage of a GSI project, from initial site planning to design methodologies to construction phase evaluations and ultimately to postconstruction performance monitoring. The goal is to provide municipal and design communities with a practical framework of the available and emerging resources and tools necessary to deliver GSI projects that will pass the test of time, especially in an increasingly complex social environment and in a changing climate.