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Mr. Himanshu Mehta, P. E. <br />24 July 2024 <br />Page 3 <br />PROPOSED SCOPE OF WORK <br />The additional scope of work is divided into the following four phases: <br />• Phase 1— General Consulting/Meeting Support/Project Management; <br />• Phase 3 — QA/QC Services; <br />• Phase 4 — Construction Management; <br />• Phase 8 — Miscellaneous Engineering Support Services. <br />Phase 1— General Consulting/Meeting Support/Project Management <br />Under this phase, Geosyntec will perform project management responsibilities, such as <br />correspondence with SWDD and FDEP, review of subcontractors' invoices, project <br />coordination, and administration including monthly invoicing throughout the extended project <br />schedule. <br />Phase 3 — QA/QC Services <br />This phase includes the additional labor and expenses for the QA/QC services to substantially <br />complete construction (which is estimated to be by 11 October 2024). Geosyntec's QA/QC <br />personnel have been on site since 16 April 2024 by monitoring other construction activities <br />under Change Orders 1 & 3. As previously indicated actual liner construction work started on 26 <br />June 2024 and substantial completion of the Cell 3 liner construction is estimated to be on 11 <br />October 2024. Therefore, an additional 3 months of QA/QC services is projected to complete <br />this Project based on the contractor's current schedule estimation. <br />As part of this phase, additional site visits are required by the subcontracted surveyor, Peavey & <br />Associates (Peavey) to perform as -built surveys of completed sections in order to expedite <br />construction. Peavey's unit rate proposal for the additional work is included as Attachment A. <br />Phase 4 — Construction Management <br />The originally approved Work Order assumed CM support services for a 4 -month construction <br />duration. As of 20 June 2024, the projected project schedule surpassed the four (4) month <br />projection based on the contractor's response to Change Order No. 2. Additionally, tracking and <br />reviewing time and materials (T&M) invoices for Change Orders 1, 3, 4 & 5 and unanticipated <br />additional site visits at the request of SWDD have increased the overall initial scope. The <br />additional support projected to finish this Project will include an additional three (3) months of <br />contracting services based on the contractors' current schedule estimation. Therefore, Geosyntec <br />will provide CM support services for an additional three (3) months. This includes preparation <br />FL9363B-01/JL24046 Seanent 3 Cell 3 Liner Construction Amendment 2.doc <br />engineers I scientists I innovators <br />