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CENTER STREET AREA FRAMEWORK + POLICY PLAN <br />Stormwater Management System Water collected and stored within the <br />PROJECT D E S C R I P T I O N storage tanks will discharge via gravity flow <br />Bolton & Menk, has completed a preliminary study that analyzes the feasibility of integrating <br />stormwater reuse for irrigation of the proposed Municipal Plaza and adjacent Center Street <br />landscape improvements. The reuse system envisioned will include best management <br />practices to collect and treat runoff, storage tanks to store the runoff, and a pump station and <br />piping to convey the reuse water to the irrigation areas. Most of the stormwater runoff will <br />be generated from Center Street NW and the sidewalks on either side of the road. <br />Stormwater runoff is proposed to be collected and treated by a combination of tree vaults <br />and rain gardens located within the boulevard and parking 'bump -outs on both sides of the <br />street. It is assumed that the runoff would drain directly into each of the rain gardens and <br />tree vaults through surface capture systems (i.e.. curb cuts). <br />to the pump house wet well, where it will <br />be filtered and treated. The Metropolitan <br />Council Storm water Reuse Guide Water <br />Balance Tool for Constant Irrigation <br />Demand was used to determine the percent <br />of time the stormwater reuse system would <br />be functioning, and assumed 1"of water <br />over the irrigable area per week is required <br />for adequate vegetation growth and health. <br />27 <br />