Laserfiche WebLink
SWDD Item <br />and equipment provided will dehydrate the LFG by cooling it so that condensate will not be generated in <br />the pipeline. This change will allow the condensate sumps to be removed along the pipeline. <br />In addition, NED has agreed to share in the 50% capital cost of the chiller system. As part of this agreement, <br />NED has also recognized that it would be prudent for them to install a hydrogen sulfide (1-12S) removal <br />system prior to the chiller, as it is best to do so when the LFG is at high temperature and contains moisture. <br />Staff supports NED's request to have them install this on our property since the footprint of our HPS is <br />going to be sized on a concrete pad that has space for both the chiller and the 1-12S removal system. Since <br />any LFG going through the 1-12S removal system uses up the media within it, staff supports NED's request <br />to proportionately share in the 0&M costs associated with the media. Any condensate generated on <br />SWDD's property as a result of the chiller will be routed to one of our on-site lift stations and then <br />ultimately treated in the Evaporation system. <br />Upon approval of Change Order No. 1 for $292,570, the total authorization to BGE for the fabrication of <br />the HPS system with the chiller is now $1,081,570. <br />Funding: <br />The landfill gas flare skid improvements are considered a "closure activity" and, as such, is funded from <br />an escrow account long established per Florida Department of Environmental Protection (FDEP) <br />requirements. Funding forthe landfill gas flare skid improvements in the amount of $1,081,570 is available <br />in the SWDD/Accrued Closure — I, II & Infill account, number 411-239006, which is funded from SWDD <br />assessments and user fees. <br />Project Portion DESCRIPTION ACCOUNT AMOUNT <br />Change Order SWDD/Accrued Closure — I, II & Infill 411-239006 $ 292,570 <br />Original SWDD/Accrued Closure— I, II & Infill 411-239006 $ 789,000 <br />Total $1,081,570 <br />Recommendation: <br />Solid Waste Disposal District (SWDD) staff recommends that its Board approve Change Order No. 1 with <br />Biogas Engineering to include a chiller in the fabrication of the high-pressure skid system for a not -to - <br />exceed cost of $292,570; and authorize the Chairman to execute the same, after approval by the County <br />Attorney. <br />Attachment: <br />1. BGE Change Order No. 1 <br />2. Letter of Support from NED <br />SWDD Agenda - Change Order No. 1 to Agreement with Biogas Engineering for a High Pressure Skid Page 2 jf4 <br />System <br />