4.4.3 Sizing

See Appendix C: Sizing of LID Facilities for an overview of the step-by-step process to be used to size LID BMPs for runoff treatment and flow control and an illustration of the sizing process for a hypothetical bioretention facility design in the City of Spokane. The text below provides additional guidance on the use of hydrologic models to evaluate flow control and runoff treatment benefits.

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