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Stormwater Code Compliance

Green Stormwater Infrastructure (GSI) includes stormwater best management practices designed to reduce runoff from development using infiltration, evapotranspiration, and/or stormwater reuse. To be considered Green Stormwater Infrastructure, it must provide a function in addition to stormwater management such as water reuse, providing greenspace and/or habitat in the City. Examples of green stormwater infrastructure include trees, bioretention facilities, permeable pavement, green roofs, rainwater harvesting and bioretention planters with underdrains. Green Stormwater Infrastructure can be used to comply with the Minimum Requirements for Flow Control, Minimum Requirements for Treatment, or both, depending on how they are designed and constructed.

All projects are required to implement Green Stormwater Infrastructure to the maximum extent feasible for flow control. This means that Green Stormwater Infrastructure must be incorporated throughout the project site wherever feasible, constrained only by the physical limitations of the site, practical considerations of engineering design and necessary business practices, and reasonable financial considerations of costs and benefits.

City Policies Requiring and Related to GSI

Specifications and Pre-approved Materials
Detailed explanations of approved materials for use in GSI

Inspection and Verification Procedures
Methods of confirmation and measurement of effective Stormwater controls.

Other Resources
Links to soil quality specifications and preferred plant material