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TASK 8 - WEEKLY GHG FLARE READINGS <br />Currently SCS -FS performs scheduled flare readings twice per month. Additional weekly flare <br />readings will be performed as needed on weeks that are not scheduled for a flat fee. Once per <br />quarter during weekly site visits the flow meter will be cleaned and inspected. All flare readings will <br />be taken with a factory calibrated GEM 5000 portable landfill gas meter or an equivalent instrument. <br />During weekly flare readings, the gas meter will be field calibrated with a 50% methane/35% carbon <br />dioxide calibration mix and 4% oxygen. <br />TASK 9 - FLOW METER CALIBRATION <br />The flare station flow meter is factory calibrated once per year per the RS standard operating <br />procedure. To minimize risk of drift outside the 5% tolerance SCS -FS recommends factory calibrating <br />the flow meter every 6 months and performing an "as found" bench test prior to calibration as an <br />alternative to quarterly field accuracy checks. During each calibration, a loaner unit will be installed <br />by SCS -FS. Once the site meter is calibrated, the loaner meter will be removed and the site meter re- <br />installed. Each occurrence will be performed on a flat fee basis. Any additional repairs beyond <br />calibration and the bench test of the site meter will be at an additional cost. <br />NON -ROUTINE SERVICES AND MAINTENANCE <br />Non -routine maintenance and repairs will be performed on an as -needed basis. Prior to performing <br />non -routine services SCS -FS will submit a proposal to Republic for approval. Each proposal will <br />include a scope of work and costs. In the event that a proposal cannot be provided prior to <br />performing work due to circumstances that require an immediate response time, SCS -FS will provide <br />a summary of the work that was performed and costs in a proposal subsequent to the work. <br />ASSUMPTIONS AND CONDITIONS <br />This scope of services and corresponding fee estimate are based on the following assumptions and <br />conditions: <br />1. SCS is not responsible for trace constituents in the flare stack gas with respect to the <br />potential health and safety hazards associated with flaring of the gas. <br />2. Additional reporting and/or analysis that may be requested by Republic will be performed as <br />a non -routine service and billed on a time -and -materials basis. <br />3. Propane or nitrogen for the blower/flare station will be provided by others. <br />4. The scope of services, labor schedule, and compensation for the 0&M tasks was developed <br />assuming that field personnel would perform routine services Monday through Saturday <br />during regular working hours (7:00 a.m. to 5:00 p.m.) with unrestricted site access for <br />personnel, equipment, and materials to enable completion of the work. <br />5. Work will be performed in OSHA Level D protection and in accordance with the SWANA <br />Landfill Gas Management Division's, "A Compilation of Landfill Gas Field Practices and <br />Procedures', dated August, 2011. Additional health and safety requirements can be <br />provided with an adjustment in our price. <br />6. All permits (environmental, labor, structural, electrical, etc.) will be provided by others. <br />Indian River Landfill O&M Proposal Page 5 www.scsengineers <br />