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Docusign Envelope ID: BB27E2CA-90E7-44DF-ACD6-60284C2E92F6 <br /> ATTACHMENT A <br /> CITY OF SAN MARCOS <br /> WALLACE ADDITION SUBDIVISION IMPROVEMENTS <br /> SCOPE OF SERVICES <br /> C. Preliminary Engineering Tasks <br /> a. Sanitary Sewer(gravity main) Preliminary Engineering: The Consultant will evaluate <br /> existing conditions, identify operational issues, and analyze site conditions. The PER will <br /> include an alternative analysis to determine the optimal alignment, construction method, <br /> and pipe material to be proposed. <br /> b. Potable Water Preliminary Engineering: The Consultant will evaluate existing conditions, <br /> identify operational issues, and analyze site conditions. The PER will include an <br /> alternative analysis to determine the optimal alignment, and pipe material. <br /> c. Street Assessment and Sidewalks Preliminary Engineering: The Consultant will review <br /> roadway design standards and guidelines. During this task, preliminary geometric <br /> design, horizontal and vertical alignments and cross-sections and profiles will be <br /> developed. Cross section/profile will include evaluating the addition of sidewalks to the <br /> subdivision. In addition, a preliminary pavement design to include pavement type and <br /> structural design will be developed. <br /> d. Drainage Improvements Preliminary Engineering: The Consultant will perform a <br /> watershed analysis to determine storm runoff quantities and associated appurtenances to <br /> carry the resultant stormwater discharge. After this analysis, alignments will be <br /> determined along with preliminary- hydraulics/modeling for the subdivision. The <br /> consultant will employ a Low Impact Development (LID) approach to design a stormwater <br /> system that minimizes environmental impact thus managing stormwater close to its <br /> source. <br /> e. Permitting: The Consultants will determine a list of permits needed for the project. The <br /> City will complete all permits required for this project. <br /> f. Utility Coordination: The Consultant will review the project to determine which utilities are <br /> within the project limits and Identify Utility Conflicts—Prepare an overall exhibit and utility <br /> conflict matrix. <br /> g. Cost Estimate: The Consultant will Prepare an Opinion of Probable Construction Cost <br /> (OPCC) for all improvements recommended in the PER. The OPCC will conform to <br /> AACE Class 3 Standard. <br /> h. Topographic and Tree Survey: The Consultant will prepare an electronic map showing <br /> the results of topographic and tree survey obtained by McCray and McCray. The <br /> topographic and tree survey will be incorporated into the preliminary engineering <br /> analysis. <br /> i. Geotechnical Investigation: The Consultant will prepare an electronic map showing the <br /> results of the geotechnical investigation obtained by HVJ. The results of the investigation <br /> will be incorporated into the preliminary engineering analysis. <br /> j. SUE: The Consultant will prepare an electronic map showing the results of the SUE <br /> obtained by the Rios-Group. The results of the investigation will be incorporated into the <br /> preliminary engineering analysis. <br /> D. Deliverables <br /> a. Three (3) Monthly Status Reports <br /> 3 <br />