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Environmental Consulting & Contracting October 18, 2024 Himanshu Mehta Managing Director Indian River County - Solid Waste Disposal District 1325 74th Avenue SW Vero Beach, FL 32968 ° Subject: Proposal to Install Vertical Wells and HDPE Vacuum, Air and Forcemain Piping Indian River Landfill, Vero Beach, Florida Dear Mr. Mehta: SCS Field Services (SCS -FS) is pleased to provide this proposal to you for the subject work based on discussions between SCS -FS and Indian River County (County). SCS -FS is prepared to s°chedule the work following approval by the County. A summary of the scope of work and cost is outlined below. BACKGROUND In September 2024, SCS -FS abandoned eight vertical wells, along with the vacuum lateral'piping, air piping, and forcemain piping, due to a sliver fill on the north slope of Cells 1 and 2 in Segment 3 of the landfill. At the County's request, once the sliver fill is completed by operations, SCS -FS will install eight new vertical wells on the north slope of Cells 1 and 2. New vacuum lateral piping, air°piping, 'and forcemain piping will also be installed for each of these wells. Additionally, vacuum lateral piping will be connected to the seven side slope collectors that were left in place. To account for the 20-30 feet of additional waste placed in Cell 2, two new vertical wells will be installed to replace wells EW -179 and EW- . 177. SCOPE OF WORK Task One: Vertical Well Installation SCS -FS will provide labor equipment and materials to install new vertical wells based' on the following scope of work description: • One mobilization and demobilization of Recovery Drilling Services. • Drilling 1,015 vertical feet to install seven replacement wells: EW -41, EW -56R, EW -69, EW -70,, EW -72R, EW -177, EW -179, and three new vertical wells: EW -2401, EW -2402 and EW -2403 based on Figure 1. SCS -FS does not recommend installing replacement,wells EW -68, EW -71' and EW -74 at this time due to shallow waste depths. The well schedule is' presented in Table 1. • Installation of 816 feet of 8 -inch schedule 80 perforated PVC pipe. Perforated pipe will be. backfilled with #4 non calcareous stone. A geocomposite ring and bentonite seal°will be installed on top of the stone. • Installation of 250 feet of 8 -inch schedule 80 solid PVC pipe. Solid pipe will consist of 20 feet below grade and 5 feet above grade. Below grade pipe will be backfilled with clean fill material. 1800 Pembrook Drive, Suite 300, Orlando, Florida 32810 p