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REDWOOD CITY <br />Jurisdictional <br />Each location is responsiblefor individually <br />achieving the target load reduction <br />c %T i %Reduction <br />@ <br />A I�— <br />Cost 1 <br />cost — — <br />Cost <br />a r <br />cost <br />%Reduction <br />@ <br />— Cost 2 <br />%Reduction <br />Red; <br />Cost N <br />Countywide <br />Optimization approach reduces total <br />Implementation cost by targeting specific <br />source areas across locationalhoundories <br />All Bay Cities <br />J <br />Total Cos[ % <br />(Proportional) Dptimal <br />� � Solution <br />n 0051: <br />Y, COstk » Total CostTargered <br />k=a <br />Figure 5. Modeling System Supporting the RAA. <br />Results of each of the four RAA scenarios are documented in Appendix D. <br />These results can inform the adaptive management process for GI <br />implementation, and help garner support for collaborative efforts for GI <br />implementation or further research of PCB source areas that can seek more <br />cost-effective implementation strategies over time. Figure 6, Table 2, and <br />Figure 7 provide a summary of Scenario 1 RAA results for the City of Redwood <br />City. Scenario 1 represents the most conservative scenario for GI <br />implementation. The following steps outline how the process for formulating <br />the scenario in the RAA model and using the results to set goals for GI <br />implementation. <br />First: Based on GI project categories defined in Section 2.5, SUSTAIN was used <br />to simulate effectiveness/load reductions and estimate planning -level costs <br />for various combinations of GI projects within Redwood City's jurisdiction <br />(along the x-axis of Figure 6, from low pollutant reduction/effectiveness to <br />high reduction/effectiveness). "Existing Projects" were locked in the model <br />and included those GI projects included in the FY 2016-17 MRP Annual Report <br />to the Water Board. "Future New & Redevelopment" is an estimation of the <br />LID that will likely be implemented in the future in redevelopment areas <br />(based on Provision C.3). "Green Streets" were based on prioritized and <br />ranked (High, Medium, and Low) street retrofit opportunities reported in the <br />SRP. For Redwood City, the "Regional Stormwater Capture Project at Red <br />Morton Community Park" refers to the regional project located within Red <br />Morton Park. "Other GI Projects" refer to additional GI projects needed, but <br />RWC GREEN INFRASTRUCTURE PLAN <br />GREEN INFRASTRUCTURE PLAN <br />19 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 />