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REV: 08-14-25 LF <br />shall be billed only for expenses incurred and hours worked and equipment and supplies <br />used for the work under this Agreement. <br />Total Agreement Estimated Costs <br />Description Estimated Cost ($) <br />Task 1 - Prepare a Soil Vapor Investigation Workplan $6,178 <br />Task 2 - Assist with Regulatory Communications and Site Access Agreements $5,438 <br />Task 3 - Implement Soil Vapor Investigation Activities $39,694 <br />Subtask 3.1 - Task Management & Field Preparation $6,802 <br />Subtask 3.2 - Soil Vapor Well Installation $16,761 <br />Subtask 3.3 - Soil Vapor Well Sampling $11,151 <br />Subtask 3.4 - Soil Vapor Investigation Reporting $4,980 <br />Task 4 - As-Needed Groundwater Monitoring Services (20 quarters total) $325,957 <br />Subtask 4.1 - Task Management & Field Preparation $36,100 <br />Subtask 4.2 - Well Gauging & Groundwater Sampling $113,697 <br />Subtask 4.3 - Chemical Analysis of Groundwater Samples $88,800 <br />Subtask 4.4 - Monitoring Reports $87,360 <br />Task 5 - Project Management and Administration $25,260 <br />Task 6 - Additional As-Needed Consultation Services $40,253 <br />Total Not-to-Exceed Amount $442,780 <br />Task 4 - As-Needed Groundwater Monitoring Services Estimated Costs – Per <br />Quarter <br />Description Estimated Cost ($) <br />Subtask 4.1 - Task Management & Field Preparation $1,805 <br />Subtask 4.2 - Well Gauging & Groundwater Sampling $5,685 <br />Subtask 4.3 - Chemical Analysis of Groundwater Samples $4,440 <br />Subtask 4.4 - Monitoring Reports $4,368 <br />Total Estimated Cost for Task 4 – Per Quarter $16,298 <br />ATTY/AGR.2025.210/Farallon Consulting, LLC (Soil vapor investigation & groundwater sampling) (Page 18 of 19)