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REV: 05-15-17 PR COMMUNITY DEVELOPMENT DEPARTMENT Engineering and Transportation www.redwoodcity.org Green Infrastructure Plan Work This Workplan will lay out the specific tasks that need to be completed in order for City (City) to complete the preparation of the various components of the Green Infrastructure Plan, and the timeline for their c Regional Stormwater NPDES Permit (MRP). The Workplan documentation documentation that the Workplan was Provision C.3.j.i.(5) of the MRP. Statement of Purpose The Green Infrastructure Plan is intended to describe how surfaces and storm drain infrastructure from gray (traditional) to green. That is, the Plan should describe how the City will change over time infrastructure that directs runoff directly into storm drains and receiving waters to green infrastructure that slows runoff by dispersing it to vegetated areas, harvests and uses runoff, promotes infiltration and evapotranspiration, and uses bioretention and other green infrastructure practices to treat stormwater runoff Therefore, one of the required elements for the Plan is for Permittees to self determine and establish “targets” for the amount of impervious surface to be retrofitted with green infrastructure. In addition, the introduction to Provision C.3.j states what the Board intends the Green Infrastructure Plans to achieve: “The Plan is intended to serve as an implementation guide and reporting tool during subsequent Permit terms to provide reasonable assurance that urban runoff allocations (e.g., for the San Francisco Bay mercury and PCBs for reducing, over the long term, the adverse runoff on receiving waters. For this alternative to expanding the definition of Regulated Projects prescribed in Provision C.3.b to include all new and redevelopment projects that create or replace 5,000 square feet or more of Page 2 of 17 1017 Middlefield Road Redwood City, CA 94063 Main: 650.780.7380 Fax: 650.780.7309 Green Infrastructure Plan Workplan out the specific tasks that need to be completed in order for to complete the preparation of the various components of the Green Infrastructure Plan, and the timeline for their completion by the deadlines defined within the NPDES Permit (MRP). will be submitted in the 2017 Annual Report documentation that the Workplan was approved by the City Council by June 30 The Green Infrastructure Plan is intended to describe how the City will shift their impervious surfaces and storm drain infrastructure from gray (traditional) to green. That is, the Plan should will change over time infrastructure that directs runoff directly into storm green infrastructure that slows runoff by dispersing it to vegetated areas, harvests and uses runoff, promotes infiltration and evapotranspiration, and uses bioretention and other green infrastructure practices to treat stormwater runoff. f the required elements for the Plan is for Permittees to self determine and establish “targets” for the amount of impervious surface to be retrofitted with green infrastructure. In addition, the introduction to Provision C.3.j states what the Regional Water Quality Control Board intends the Green Infrastructure Plans to achieve: The Plan is intended to serve as an implementation guide and reporting tool during subsequent Permit terms to provide reasonable assurance that urban runoff allocations (e.g., for the San Francisco Bay mercury and PCBs TMDLs) will be met, and to set goals for reducing, over the long term, the adverse water quality impacts of urbanization and urban runoff on receiving waters. For this Permit term, the Plan is being required, in part, as an definition of Regulated Projects prescribed in Provision C.3.b to redevelopment projects that create or replace 5,000 square feet or more of 1017 Middlefield Road Redwood City, CA 94063 Main: 650.780.7380 Fax: 650.780.7309 out the specific tasks that need to be completed in order for Redwood to complete the preparation of the various components of the Green Infrastructure ompletion by the deadlines defined within the Municipal 2017 Annual Report, including by June 30, 2017; per will shift their impervious surfaces and storm drain infrastructure from gray (traditional) to green. That is, the Plan should will change over time infrastructure that directs runoff directly into storm green infrastructure that slows runoff by dispersing it to vegetated areas, harvests and uses runoff, promotes infiltration and evapotranspiration, and uses f the required elements for the Plan is for Permittees to self determine and establish “targets” for the amount of impervious surface to be retrofitted with green infrastructure. ter Quality Control The Plan is intended to serve as an implementation guide and reporting tool during this and TMDL wasteload TMDLs) will be met, and to set goals water quality impacts of urbanization and urban s being required, in part, as an definition of Regulated Projects prescribed in Provision C.3.b to redevelopment projects that create or replace 5,000 square feet or more of 6.3.D. - Page 8