MARK THOMAS & COMPANY, INC. - THRID AMENDMENT (#2023416)

W Las Positas Blvd Multimodal Project – Amendment 03 City of Pleasanton 1 OF 8 SCOPE OF SERVICES PROJECT UNDERSTANDING Mark Thomas’ scope of services for the West Las Positas Boulevard Multimodal Reconstruction Project includes engineering and design services for project management, surveying and mapping, environmental services, and preparation of plans, specifications and estimates (PS&E). Amendment #1 included changes to the scope of work for preparation of the 35% design. Amendment #2 included scope of work for preparation of Final Design PS&E and environmental clearance documents with the addition of coordination with Caltrans District 04 Local Assistance for federal funds obtained for construction of the project improvements. To date, we have completed preparation of 95% PS&E for improvements to West Las Positas Boulevard between Hopyard Road and Stoneridge Drive and are working towards the NEPA and CEQA environmental clearance and 100% PS&E submittal. SCOPE OF SERVICES: Based on discussions with the City, this amended scope of services has been prepared to provide additional project management and meetings, prepare Right of Way Exhibits for work within existing Public Service Easements (PSE's) along W. Las Positas Boulevard, prepare revised utility conflict exhibits, provide additional coordination with utilities to eliminate conflicts with underground utilities, prepare technical studies required by Caltrans with the approved Preliminary Environmental Study (PES) for the project's NEPA Clearance, conduct value engineering and develop alternative cost estimates to reduce the project cost to within the available funds for construction, and prepare an updated 95% PS&E submittal that incorporates the City's selected value engineering cost alternatives. The proposed tasks for this amendment are as follows: TASK 1. PROJECT MANAGEMENT AND ADMINISTRATION Mark Thomas has been providing ongoing project management for each task for the duration of the Contract term. We originally assumed 15 months project duration encompassing the design and bidding periods. Total project duration has extended to 20 months. Mark Thomas will continue to provide project management activities consisting of management, administration, coordination, supervision, project controls, attending meetings, and as follows: Task 1.1. Project Management and Control Mark Thomas will supervise, coordinate, and monitor activities and product development for conformance with the Cities’ standards and policies and local ordinances. Prior to the start of any Services, Mark Thomas will interface with City staff to assure format consistency of deliverables and to facilitate free and timely flow of information for each task activity. Mark Thomas will prepare a detailed critical path method (CPM) schedule to reflect plan and progress of Services and to serve as a master schedule for the Project. The schedule will be updated on a monthly basis to include key milestones and tasks completed. Task 1.3. Project Meetings Mark Thomas will continue to conduct bi-weekly (i.e. once every two weeks) Project Development Team (PDT) meetings with project stakeholders as directed by the City which will include general discussion materials and preparation of agendas and minutes. Docusign Envelope ID: A75419B6-AB44-4A86-AD28-9A8B761DAC45Docusign Envelope ID: 1E59C678-E9C3-4670-9E32-812A6336279F