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ATTACHMENT B <br /> SCOPE OF SERVICES AND PROJECT SCHEDULE <br /> INDIAN RIVER COUNTY SOLID WASTE DISPOSAL DISTRICT <br /> ENGINEERING SERVICES FOR <br /> LANDFILL GEOTECHNICAL EVALUATION <br /> PROTECT UNDERSTANDING <br /> Indian River County (IRC) is interested in modifying the design of the final landfill scope <br /> geometry to provide more air space in the landfill . CDM will provide consulting services to <br /> evaluate the feasibility of modifying the Class I Landfill sideslopes to increase the amount of <br /> airspace available . The current design includes 3H : 1V side slopes with terraces every 20 feet of <br /> vertical rise . The proposed geotechnical evaluation will consider a range of revised slopes and <br /> terrace locations and widths to increase the air space in the landfill. In addition, preparation of a <br /> permit application to modify the Class I Operations permit is included as Task 2 . 0 in this <br /> proposal . <br /> TASK 1 . 0 - LANDFILL GEOTECHNICAL EVALUATION <br /> The following is the proposed scope of work for the geotechnical evaluation. This proposal <br /> assumes that we can base the evaluation on existing geotechnical data and reports and that we <br /> will need only a limited field investigation. This work is expected to proceed with the following <br /> subtasks : <br /> ■ Review available information including design documents and previous geotechnical <br /> reports . We will visit the site to observe site conditions . We have assumed that there is <br /> sufficient available geotechnical information and that no additional field or laboratory <br /> investigations are needed . <br /> ■ Estimate settlement of the final cover system based on the revised slope geometry . <br /> ■ Perform global stability analyses of the landfill mass . <br /> ■ Perform veneer stability analyses of the proposed cap system. <br /> ■ Evaluate settlement-induced strain in the liner due to foundation settlement. <br /> ■ Evaluate the Geocomposite drainage layer . <br /> ■ Prepare a letter report presenting the results of our analyses . <br /> TASK 2 . 0 - LANDFILL OPERATIONS PERMIT MODIFICATION <br /> CDM will prepare a modification of the IRC SWDD Landfill Class I Operations permit which <br /> includes the results of the landfill geotechnical evaluation approved by IRC . This proposal has <br /> been budgeted on the assumption that Florida Department of Environmental Protection (FDEP) <br /> B-1 rb4475 .doc <br />