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��trt►� <br />City of Santa Ana <br />Proposal for 601 North Parkcenter Drive <br />Initial Study and Mitigated Negative Declaration <br />Technical Report Preparation. RBF will prepare a written report summarizing the <br />drainage assessment requirements for the project, particularly focusing on the post <br />projection watershed hydrologic conditions. The report will include discussions <br />reviewing the drainage constraints, offsite and onsite hydrology, flooding impacts, <br />drainage design criteria and drainage infrastructure requirements. The report will <br />include graphics supporting hydrologic calculations and water quality features. A <br />technical appendix will be prepared which includes all hydrologic and hydraulic <br />analysis for the site, analysis assumptions, and all reference documents. <br />3.3 SEWER STUDY <br />RBF's Water Resources Division will prepare a sewer analysis to determine the <br />impact of the proposed project on the existing sewer system to satisfy CEQA <br />requirements, based on the following scope of work. <br />Coordination with Staff/Meetings. RBF will coordinate with City of Santa Ana Public <br />Works staff to discuss the sewer system affected and gather as -built information for <br />the downstream pipelines to the Project. As available, information will also be <br />collected on the age, condition and if any replacement program improvements cover <br />any of the reaches. This task includes up to two meetings with City staff. <br />Report Review. RBF will collect and review master planning reports to determine the <br />master planned/designed capacity of the impacted downstream system. <br />Sewer Flow Estimates. A sewer flow estimate will be calculated for the Project to <br />determine the generated flow. RBF will also identify the best means to determine <br />sewer flow through the existing system from other areas of service. If required, flow <br />monitoring shall be performed under a separate scope of service and contract. <br />Text Summary. RBF will summarize the findings of the analysis into text and/or a <br />technical study for inclusion into the Mitigated Negative Declaration. To best <br />illustrate the Project and impacts to the City's sewer system, RBF will utilize the use <br />of tables and graphics. <br />This scope of services is based on the following assumptions: <br />The scope of Hydraulic modeling analysis will not be required for analysis of <br />the downstream system; and <br />Flow monitoring and / or video inspection of the downstream sewer pipelines <br />is not covered under this scope of service. A separate scope of service is <br />required for the determination of actual field conditions. <br />3.4 TRAFFIC IMPACT STUDY <br />RBF's Transportation Division will prepare a traffic impact analysis to support <br />environmental documentation of the 601 North Parkcenter Project based on the <br />following scope of work. The scope of work has been prepared prior to discussions <br />with City of Santa Ana staff. The analysis will evaluate traffic impacts associated <br />with the proposed project based on City of Santa Ana performance criteria. If <br />JN 10-105908 • 5 • August 8, 2007 <br />