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REDWOOD CITY <br />Francisco Bay Area sport and subsistence fisher consumer (32 g fish per day). <br />A food web model was developed by San Francisco Estuary Institute (SFEI) to <br />identify the sediment target concentration that would yield the fish tissue <br />target; this sediment target was found to be 1 microgram (pg) of PCBs per kg <br />of sediment. <br />Twenty percent of the estimated allowable PCB external load was allocated to <br />urban stormwater runoff. The Bay Area -wide WLA for PCBs for urban <br />stormwater is 2 kg/yr by 2030. This value was developed based on applying <br />the required sediment concentration (1 pg/kg) to the estimated annual <br />sediment load discharged from local tributaries. <br />1.2 Objectives and Vision <br />This Plan will guide a shift from conventional "collect and convey" storm drain <br />infrastructure to more resilient, sustainable stormwater management systems <br />that reduce runoff volumes, disperse runoff to vegetated areas, harvest and <br />use runoff where feasible, promote infiltration and evapotranspiration, and <br />use natural processes to detain and treat runoff. Green infrastructure features <br />and facilities include, but are not limited to, pervious pavement, infiltration <br />basins, and bio -retention facilities ("rain gardens"), green roofs, and rainwater <br />harvesting systems. <br />As required by Provisions C.3.a. through C.3.1. in the MRP, these "Low Impact <br />Development" practices are currently implemented on land development <br />projects in the City. Specific methods and design criteria are spelled out in the <br />San Mateo Clean Water Program's (SMCWP's) Stormwoter C.3 Guidebook, <br />which the City of Redwood City has referenced in Ordinance No. 2269 <br />amending Chapter 27A of the Redwood City Municipal Code. <br />This Plan details how similar methods will be incorporated to retrofit existing <br />storm drainage infrastructure using green infrastructure facilities constructed <br />on public and private parcels and within the public right-of-way. <br />1.3 Plan Context and Elements <br />1.3.1 Planning Context <br />Redwood City, a community located between the waters of the San Francisco <br />Bay and the verdant open spaces of the Santa Cruz Mountains, offers a <br />wonderful balance of natural and urban places that attracts residents and <br />businesses seeking good jobs, pleasant neighborhoods, a multitude of <br />RWC GREEN INFRASTRUCTURE PLAN <br />GREEN INFRASTRUCTURE PLAN <br />3 JUNE 2019 <br />ATTY/RESO.0075/CC RESO APPROVING THE GREEN INFRASTRUCTURE PLAN — EXHIBITA RESO. NO. 15780 <br />REV: 06-20-19 PR MUFF NO. 802 <br />