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AMENDMENT NO.3 <br />WORK ORDER NUMBER 44 <br />LANDFILL GAS FLARE SKID IMPROVEMENTS AND PIPELINE EXTENSION <br />EXHIBIT A <br />SCOPE OF WORK <br />PROJECT UNDERSTANDING <br />Indian River County (County) solid waste disposal district (S)WDD) currently relies on a <br />candlestick flare for landfill gas (LFG) emissions. The current blower flare skid was <br />installed in 2004 and is in need of updating and reconfiguration for overall performance <br />and efficiency, and to accommodate the renewable natural gas (RNG) project that is in <br />development with the Indian River Eco District (IRED). In addition, SWDD is working <br />with a third -party to install a leachate evaporation system that may utilize landfill gas as a <br />fuel source. To accommodate the RNG and evaporation projects, modifications to the LFG <br />skid and an extension to the LFG pipeline are required. The proposed modifications will <br />improve the LFG collection and control system by providing reliable vacuum pressure to <br />the gas wellfield and ensure continuous delivery of dry, pressurized LFG to the evaporation <br />and RNG projects. <br />Kimley-Horn and Associates, Inc. (Consultant) has partnered with BioGas Engineering <br />(BioGas) to design, permit and bid the proposed improvements. Amendment No. 3 <br />provides for additional design of the control panel required for the instrumentation to be <br />installed in the storage tank, proposed flow meters (3) and mixer. This amendment also <br />includes construction services during the construction phase of the project to complete the <br />installation of the landfill gas and leachate pipelines, communications conduit and <br />southeast swale (shop drawing reviews, site visits, etc.). <br />SCOPE OF SERVICES <br />Task 1: Landfill Gas Pipeline Design <br />Subtask 1.1.3 has been amended as noted below. <br />Subtask 1.1 Preliminary Design Activities <br />1.1.1 Alignment for Survey Purposes <br />No changes. <br />1. 1.2 Survey <br />No changes. <br />1.1.3 Geotechnical Data <br />No changes. <br />Page 1 of 7 <br />