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INTRODUCTION <br />SCS Field Services has been providing operation and maintenance (0&M) of the landfill gas <br />collection and control system (GCCS) at the Indian River Landfill on behalf of Republic Services <br />(Republic) since 2013. In 2018, a large area of the landfill known as segments one and two <br />underwent a closure. Part of this closure was to expand the GCCS into the upper segments one and <br />two, which previously did not have any landfill gas (LFG) collection. In addition to the GCCS <br />expansion, several repairs were made to the landfill gas flare station, which include but are not <br />limited to control panel upgrades, centrifugal blower maintenance and repair, moisture separator <br />and flame arrester replacement and the installation of a new air compression station. This proposal <br />outlines an updated scope of work that includes expanded services based on recent site changes <br />and conversations between SCS -FS, Republic and Indian River County (County). <br />SCOPE OF SERVICES <br />• Task 1 - Flare System and Wellfield Operation and Preventative Maintenance <br />• Task 2 - Monthly Reporting <br />• Task 3 - Semi -Annual Liquid Level and Preventative Pump Maintenance <br />• Task 4 - Additional Services and Maintenance <br />Each of these tasks are described below. <br />TASK 1 - FLARE AND WELLFIELD OPERATION AND MAINTENANCE <br />SCS -FS will perform routine site visits twice per month to the Indian River Landfill. During each site <br />visit, major components of the GCCS such as flare systems, condensate pumps and LFG header <br />piping will be checked to ensure that the GCCS is operating normally. Monitoring data of the GCCS <br />will be logged in a major components checklist and will be submitted in each monthly report. Any <br />abnormalities observed during scheduled inspections will be reported to Republic immediately. <br />Monthly operation and monitoring (0&M) reports will be prepared to present the data to Republic <br />and summarize any LFG system operating issues that may require additional attention. Routine <br />0&M of the GCCS is described in further detail in the sections below. <br />Blower/Flare Station <br />The Indian River Landfill currently operates one candlestick flare system that is equipped with three <br />centrifugal blowers. The flare will be operated in auto -mode unless in an emergency circumstance or <br />for the purposes of troubleshooting system issues it requires manual operation. During each routine <br />site visit, SCS -FS will measure (and/or observe) and record at the flare station: <br />• LFG flow; <br />• LFG composition (methane, carbon dioxide, oxygen, and balance gas) at the inlet to the <br />knockout pot and flare inlet; <br />• Main inlet header vacuum and flare inlet pressure; <br />• Blower/flare control panel status; <br />• Flame arrestor pressure drop; <br />Indian River Landfill O&M Proposal Page 2 www.scsengineers.com <br />