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Exhibit A <br /> Continued <br /> Assumptions <br /> • The meetings will be at the City's office and attended by two Otak team members. <br /> Task 2—Topographic Survey and Base Map Preparation <br /> 2.1 Supplemental Topographic Survey and Basemap Preparation <br /> Supplemental survey is recommended for final design and preparation of construction documents <br /> based on the review of available topographic data in Phase 1, and the location of the dike repairs <br /> identified in Phase 1. The supplemental survey will include additional features for final grading of <br /> the Buse Timber log ramp, some limited areas of the slough adjacent to the dike where bathymetric <br /> data was not available during Phase 1, and the culvert invert elevations. The supplemental survey will <br /> provide topographic data to assist in determining existing grade where riprap is proposed in the <br /> slough, and provide basemapping of features to protect near the log ramp during construction. <br /> This survey will utilize GPS real-time kinematic (RTK) equipment and/or conventional total station <br /> instruments. This field survey data will be incorporated into the project base map sufficient for <br /> construction documents. (Task 5). <br /> Deliverables <br /> • Site survey base map stamped by Professional Land Surveyor, registered in the State of <br /> Washington. <br /> • The base map will show 2-foot contour intervals with elevations referenced to the North <br /> American Vertical Datum 1988 (NAVD88). <br /> • The map will be referenced to the Washington State Plane Coordinate System. <br /> • AutoCAD/CIV3D base map drawing (*.dwg) file of project survey with topographic (digital <br /> terrain model—DTM) surface of surveyed area. <br /> Assumptions <br /> • Access and rights-of-entry will be provided by the City and DD5. <br /> • Survey will be limited to areas that are accessible from land or a lightweight float tube,unless <br /> boat access is otherwise provided by the City. <br /> Task 3—Geotechnical Final Design (CCI) <br /> Cornforth Consultants (CCI) propose to perform final geotechnical design of the dike repairs and <br /> provide input to develop construction plans and technical specifications for geotechnical aspects of <br /> the work. Tasks included in the proposed scope of work are described in more detail below. <br /> DD5 Dike Repairs and Improvements Project 3 <br /> otak <br /> K:\project\32700\32758\Contract\Phase2_Scope\Scope for Phase 2-DD5 dike repairs final_17_1010.docx <br />