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<br />Amendment No. 4 to <br />Consulting Services Agreement between City of San Leandro and Terraphase Engineering, Inc 7/17/25 <br />for Treatment Wetland Design Services Page 6 of 11 <br /> Full time during Weeks 1-2 of fill operations, assuming a Mon-Fri work week and <br />maximum 50 hours per week. <br /> 2 days on site per week during Weeks 3-6 (8 days on site during this period) The <br />Terraphase field manager will perform the following activities when on-site: <br /> Oversee Contractor operations, including observing and confirming that <br />Contractor’s quality control operations are in accordance with the approved <br />Contractor Construction QC Plan. <br /> Quantitative and qualitative documentation of construction progress, including <br />preparing schematics of where work is complete, active work locations, where <br />work has not started. <br /> Track and manage contractor QC data, including noting the physical location of <br />each QC sample location on project drawings. <br /> Perform Engineer’s independent QA sampling. <br /> Complete required daily SWPPP BMP inspections and support required weekly <br />and monthly SWPPP QSD/QSP inspections. <br /> Inspect materials received on-site against the Contractor’s relevant approved <br />submittal. <br /> Provide field support for review and resolution of RFIs, including potentially <br />collecting data, coordinating with the Contractor, discussing potential means of <br />resolution with the Contractor, off-site Engineering personnel, and the City, and <br />documenting these discussions. <br /> Provide field support for identifying, tracking, and resolving construction quality <br />issues, including coordination with Contractor and City staff. <br /> Support contract change management, including measuring/confirming change <br />quantities, reviewing change requests, coordination with Contractor, Engineering <br />personnel, and the City. <br /> Conduct on-site pay application site meeting with Contractor prior to formal <br />submittal and/or for review and recommendation to City after submittal. <br /> Attending Contractor daily health and safety tailgate meetings when Terraphase <br />personnel are on site. <br /> Prepare and submit a Daily CM/Engineering/QA Report after each day of on-site <br />oversight. This report will include a summary of work performed, CM activities, <br />Engineering support activities, QA activities, technical/production issues <br />encountered, representative photos, and a 1-week lookahead of significant <br />CM/engineering/QA tasks. <br />o Terraphase engineering/CM lead: <br /> 1 day on site per week during Weeks 1-2 of (2 total days on site) <br /> 1 partial day on site per week during Weeks 3-6 of stabilization operations (4 <br />partial days on site) <br />o Terraphase Geotechnical Engineering Subject Matter Expert: 1 partial day site visit during <br />fill operations to review operations and provide technical support if needed. <br />• Conduct monthly QSD/QSP dry-weather SWPPP inspections, weekly on-site BMP inspections, <br />and any pre-, during-, and post-storm inspections that take place during this phase of work. <br />• Conduct off-site engineering, QA, CM, and CGP support, including reviewing and resolving RFIs, <br />preparing design modifications and technical field orders, submittal review, QA reporting, and <br />Docusign Envelope ID: 273A48E5-126B-49E9-B9E2-7FB9D28A1969