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Supplemental topographic survey and base mapping will be prepared by Mark Thomas for use with the Final Design plans and details. Right of way information will be shown on the base mapping based on available GIS right of way information. Supplemental Topographic Survey—Mark Thomas will conduct supplemental topographic survey to locate pertinent accessible above ground features to augment the City-furnished base mapping using conventional ground survey techniques.The limits of detailed topo will extend along W. Las Positas Boulevard from the intersection of Foothills Road to Muirwood Drive, sidewalk approaches to the 1-680 overcrossing, and from the intersection of Hopyard Road to Fairlands Drive. Ground visible features to be captured include, but are not limited,to sidewalks,curb and gutter, driveways,curb ramps,fences, private utilities,storm and sewer facilities,trees,street lighting, signing,striping, and markings within the project limits.Storm and sewer manholes will be dipped to determine invert elevations and pipe diameters within the streets around the site. Drain inlet invert elevations and pipe sizes will be based on information furnished by the City. Field crews will rely upon markings on utility feature lids. No utilities will be dipped other than sewer and storm. Task 2.3. Boundary Surveys and Mapping(Optional Task) We have assumed the project improvements will be entirely within the existing public right of way for W. Las Positas Boulevard. Existing GIS right of way mapping and observed property boundaries,such as the existing back of sidewalk will likely provide adequate boundary information for the design of the project improvements. However, if additional project improvements are identified during the course of design that extend beyond the apparent limits of the public right of way,additional boundary surveys and right of way mapping can be completed as an optional task to refine the right of way delineated for the project. As an optional task, Mark Thomas will perform a field survey to locate necessary monumentation to establish the right of way lines of West Las Positas Boulevard from Foothill Road to Fairlands Drive.Our research indicates that the available Parcel Maps(PM), Records of Survey(RS) &Tract Maps(TM)will be sufficient to complete this survey. It is our understanding that no other monument ties to other maps will be necessary to complete the boundary surveys.Should a material discrepancy be found or evidence of a dispute with adjoiners be discovered, Mark Thomas will stop work under the current scope and discuss options with to move forward. Once the locations of the property lines are established based on the field evidence collected, Mark Thomas will plot this boundary in a CAD file. Mark Thomas assumes only easements shown on the available Recorded Maps will be shown. It is assumed that boundary evidence necessary to define the boundary will be readily available. During a boundary survey, it is possible that the requirement to file a Record of Survey will be triggered.This most often happens by the discovery of conflicts or alternate evidence not shown on recent maps.Should such a conflict or other evidence be discovered,work will stop and the project team will be notified.Work will continue when agreement has been reached on path forward and additional budget for a Record of Survey has been secured. Survey Assumptions and Exclusions • Monument Preservation is not included • A Record of Survey is not included. • Preparation of Plats and Legal Descriptions for property acquisition or easements are not included. Task 2.4. TCE Exhibits Not included in this phase. Task 2.5. Utility Coordination For this project,we assume utility relocations will be limited to existing sewer,storm drain, and water facilities where needed to accommodate new curbs for Class IV cycletracks, protected intersections and curb ramps.To the extent possible, relocation of dry utilities, including gas, communications,overhead electric and vaults/boxes,will be avoided to mitigate the potential schedule risk for completion of design and scheduling of relocations by others. Mark Thomas will coordinate with utility providers for relocation of wet utilities and adjustments to grade of dry utilities where necessary. Mark Thomas will utilize available, City-furnished, utility mapping. Mark Thomas will prepare a Composite Utility Relocation Plan using the 35% plan sheets as a base including a utility relocation schedule incorporating input from various utility owners.