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6. Document in the technical memorandum other potential revisions to the proposed <br /> treatment concept. <br /> 7. Meet with the City to present the analysis. <br /> Client Responsibilities <br /> 1. Provide historical CSO data for at least the last five years. <br /> 2. Provide climate change impacted rainfall time series for at least a 20 year period. <br /> 3. Document system changes that have been implemented since the completion of the <br /> Bond Street RTB design. <br /> Assumptions <br /> 1. The original calibrated Bond Street spreadsheet model will be used to predict volume <br /> flow response at the Bond Street site. The calibration coefficients will be adjusted to <br /> reflect current overflow data. <br /> 2. The original cost estimate will be used as a basis for reevaluating current construction <br /> costs. <br /> Deliverables <br /> 1. Draft and final technical memorandum documenting potential Bond Street RTB <br /> performance. <br /> Task 2 — Additional Services <br /> Objective <br /> 1. Provide additional services as requested by the City. <br /> HDR Services <br /> 1. It is difficult to accurately anticipate all the issues that may arise during the development <br /> of the project. This task establishes a contingency fund for unidentified and <br /> unanticipated work. <br /> 2. This task is specifically designed to allow payment to HDR under this contract for <br /> changes in the scope of work which the City determines to be necessary. The funds <br /> included in this task cannot be utilized without written approval from the City. <br /> Client Responsibilities <br /> 1. When identified, authorize additional services via email and/or in writing. <br /> Assumptions <br /> 1. An allowance of$10,000 is included for additional services. <br /> Deliverables <br /> 1. To be determined. <br /> City of Everett— Bond Street RTB Review Scope of Work <br />