Amendment_No_3_Terraphase_09132024

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Amendment No. 3 to Consulting Services Agreement between City of San Leandro and Terraphase Engineering, Inc 9/13/2024 for Treatment Wetland Design Services Page 2 of 8 Task 1 Scope of Work The proposed scope of work to implement the pilot test is broken into the following tasks: Task 1.1: Premobilization Terraphase will complete subcontract execution with Odin and issue a formal Notice to Proceed to Odin. Terraphase and Odin will complete premobilization activities, including: •Revision of the Terraphase Health and Safety Plan for the site to cover pilot test implementation. •Preparation for and attendance of a 1-hour project kickoff meeting to be attended by the City, Terraphase, and Odin. Terraphase will prepare the meeting agenda, lead the meeting, and issue meeting minutes. The meeting will be held over teleconference. •Terraphase attendees will include Lucas Paz, Shakeel Jogia, and Terraphase’s project engineer. •Odin attendees will include their operations manager, project superintendent, and project engineer. •Terraphase review of Odin technical submittals as described in the Work Plan and RFP and follow up coordination with Odin. The following submittals will be submitted by Odin and reviewed by Terraphase: o Pilot Test Implementation Work Plan o Pilot Test Quality Control Plan o Contractor’s Proposed Geotechnical Testing Laboratory o Materials submittals o Implementation Schedule Terraphase will issue Approval to Mobilize upon acceptance of all preconstruction submittals. Task 1.2: Pilot Test Implementation and Oversight Odin will implement the Pilot Test under Terraphase oversight and in accordance with the Terraphase-Odin contract and approved submittals. This task includes the value of the Odin subcontract. In their proposal, Odin estimates field implementation of the pilot test to require one work week on site with 10-hour workdays. Terraphase will provide full time operational, safety, and quality assurance oversight during field implementation. A field engineer will be present during all field operations, and the proposed budget includes funding for full-time field engineer oversight for up to 6 workdays. Shakeel Jogia will also be on-site during the first day of mixing operations, and both Shakeel Jogia and Lucas Paz will perform 2 total additional partial-day site visits during implementation. Shakeel Jogia will also provide office-based technical support, response to any subcontractor Requests for Interpretation or technical requests, and logistical coordination throughout field implementation. During field implementation, Terraphase will prepare and submit a daily report to the City that documents pilot test implementation progress, quality control activities performed and data, technical issues, safety observations, and includes a schedule lookahead through completion of field activities. The daily report will include representative photos of the day’s operations. Docusign Envelope ID: 53244CDF-B5C0-43CD-8884-BC457F7EFEA3