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Mr. Himanshu H. Mehta, P.E. 21 May 2025 Page 2 PROJECT BACKGROUND Geosyntec"' consultants As part of the long-term monitoring activities for the identified CVOC plume associated with the South Gifford Road Landfill, a network of monitoring wells require sampling on an annual or semi-annual basis to: (i) confirm that the CVOC plume is not migrating by monitoring the lateral and vertical extent; (ii) evaluate the impact of source and dissolved plume bioremediation to assess CVOC plume centerline concentrations over time; and (iii) assess the impact of biological and physical natural attenuation processes on CVOC plume degradation. Geosyntec conducted previous bioremediation injection events in 2008, 2009, 2012, and 2017 to remediate recalcitrant CVOC groundwater impacts in the downgradient biobarriers and in the former source area. Following well re -development in February 2024, CVOC concentrations in several source area wells have decreased indicating improved groundwater conditions in the former source area. Concentrations of contaminants of concern were observed to be stable or have no trend during 2024 monitoring events. The plume network will continue to be monitored in 2025, following a 38% reduction in the monitoring plan in 2024. PROPOSED SCOPE OF WORK For the purpose of budgeting, the scope of work has been divided into the following phases: • Phase 1 — Project Management, • Phase 2 — Meetings/Regulatory Interaction, • Phase 3 — Annual Pollution Remediation Liabilities Evaluation, • Phase 4 — Semi -Annual Sampling Activities, and • Phase 5 — Data Evaluation and Annual Reporting. The remainder of this section presents a general description of the activities to be performed in each phase. Phase 1 — Proiect Management: Under this phase, Geosyntec will perform project planning and management responsibilities, such as correspondence with IRC SWDD and FDEP, invoice review, project coordination, and project administration. The budget includes two hours per month for the project manager (24 hours total) and one hour per month (12 hours total) for the project administrator. Phase 2 — Meetino/Regulatory Interaction: Under this phase, Geosyntec will prepare for and attend up to one meeting, with IRC SWDD, FDEP, and/or IRC Board of County Commissioners, as necessary. It has been assumed that this meeting will be in person. Also, under this phase, four hours has been FR0766\XR25016 engineers I scientists I innovators