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

W Las Positas Blvd Multimodal Project – Amendment 03 City of Pleasanton 5 OF 8 Archaeological Survey Report (ASR) Written by a professionally-qualified archaeologist, this report documents the efforts to identify archaeological resources within the Archaeological APE. It will also document the required Native American outreach efforts that are to be completed by Caltrans. Historic Resource Evaluation Report (HRER) Written by a professionally qualified architectural historian, this report documents the efforts to identify and evaluate built environment resources for the National Register of Historic Places within the Architectural APE. Each evaluation requires its own DPR form appended to the HRER. After District review, this requires a 30-day review at SHPO. When there are no resources requiring evaluation, the HRER will not be required. Caltrans PQS will confirm whether resources may be exempted from evaluation or when historic evaluations are simple enough that DPR forms can be submitted without a HRER. DELIVERABLES  Draft and Final Traffic Study Technical Memorandum  Draft and Final APE Map  Draft and Final ASR  Draft and Final HPSR  All deliverables to be submitted electronically in pdf format only unless noted otherwise Task 6.2.1. Value Engineering Support Since submittal of the 65% PS&E, the Mark Thomas team has been providing support to the City for development and evaluation of potential cost reduction measures to modify the project scope and cost to fit within the available budget for construction. The following potential cost reduction measures have been identified and evaluated. • Alternative bid for construction of the median and south-side bikeway and bioretention areas between Hopyard and Willow • Reductions to the proposed pavement sections for HMA, AB, engineered fille and lime treatment • Reduce bike lane section to 2" HMA & 6" AB • Remove beehive drains in bioretention areas • Reduce 6" bioretention underdrain to 4" • Replace all deep median curbs with standard median curbs • Remove improvements east of Stoneridge Drive Intersection • Reductions to traffic control systems • Eliminating storm drain repairs along Hopyard to Willow • Replace all 5 gallon shrubs with 1 gallon shrubs and increase plant spacing • Reduce tree root barrier to 20' length • Reduce traffic signal modifications at Hopyard, Willow, Hacienda and Stoneridge to keep existing poles and conduits and remove stop bar and advance loop detectors Docusign Envelope ID: A75419B6-AB44-4A86-AD28-9A8B761DAC45Docusign Envelope ID: 1E59C678-E9C3-4670-9E32-812A6336279F