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Environmental <br />Consultants & Contractors <br />May 18, 2021 <br />Martin J, Lewis, P.E., PMP <br />Project Manager <br />CDM Smith Inc. <br />1701 Highway A -1-A, Suite 301 <br />Vero Beach, FL 32963 <br />Subject: Indian River County Solid Waste, Segment 3 Cell 1 LFG System Expansion IRC Bid No. <br />201006, Request for Change Cost Proposal <br />Dear Mr. Lewis, <br />In response to your request for quote as outlined in your May 11, 2021 letter, SCS Field Services has <br />prepared a budgetary estimate for your consideration at the subject site. <br />SCOPE OF SERVICES <br />Our scope of services for the two major components as described in your request are as follows: <br />Remediate Leachate and Segment 3 cell 2 Drainage Issues <br />The work will be performed on a time and material bases per the attached fee schedule. The hourly <br />rate for the entire crew and equipment is $878 per hour. Materials and subcontractor work will be <br />billed at cost plus 10%. We anticipate approximately $4,500 in material cost if the 10" valve needs <br />to be replaced. I have also attached the estimate of $2,500 from Florida Jet Clean to video camera <br />and investigate the 10" control valve. In additional the price to jet clean the entire length of the 10" <br />leachate collection system (approximately 1,300 -ft) would be $2,475. Our budget includes two days <br />of field time for pumping liquids and investigating the 10" valve which will require a 4" branch saddle <br />and valve be installed on the landfill side of the existing 10" valve to gain access for the video <br />camera. <br />Additional Landfill Gas Collection <br />1. Extended 600 feet of horizontal collection trench as directed. The price per foot will be <br />performed at the contract price of $67.00 less $5.20 per foot for owner supplied perforated <br />pipe. The total for this task is $37,080 (600 feet at $61.80). <br />11260 Roger Bacon Drive, Suite 300, Reston, VA 20190 1 703-471-6150 Fox 703-709-83790 <br />