ARCHIVED REPORTS_2008_29 - Laserfiche WebLink

Home Browse Search

system consists of 216 vertical landfill gas wells, 46 soil vapor extraction wells, 18 8 horizontal gas collectors, 7 LCRS riser connections. LFG extraction wells are monitored and adjusted at manifolds located along the western edge of the landfill and at well stations located in the interior of the landfill. The control system consists of two enclosed ground flares and a landfill gas to energy plant. One flare is a 2,000 scfm LFG & E International unit installed in 2002, and the second is a 3,400 scfm John Zink unit installed in 2007. There are three 2,000 scfm direct-drive centrifugal blowers mounted on a skid. The system is capable of operating two of the three blowers in parallel. The two flares have a combined capacity of 5,400 cubic feet per minute (cfm) (equivalent to —150 MMBTU/hr). Eighteen additional wells located in the original Austin Road Landfill are connected to the landfill gas to energy plant operated by Covanta. This portion of the landfill's gas collection and control is operated independent of the main collection and control system. The second flare was installed at the landfill pursuant to ATC N-339-17-10, and went online in early October 2007. The collection system is currently extracting and transporting approximately 1,700 cfm to the flare station for destruction. With the addition of the new flare and an increase in the permitted capacity of the existing flare, control capacity was increased from 1,500 cfm to 5,400 cfm. According to the SJVAPCD's May 2007 review of the ATC application for the new flare and CAS, potential to emit in tons per year (tpy) for the landfill is 33.5 tpy of NOx, 14.4 tpy of SOx, 24.2 tpy of PM 10, 134 tpy of CO, and 7.8 tpy of VOCs. Any increases in emissions from the proposed expansion will be covered in a Title V permit modification application for the landfill expansion, which will be filed by FL and approved by the SJVAPCD before waste is placed beyond the site's current Title V design capacity. This Title V permit modification will require FL to comply with the SJVAPCD new source review (NSR) Rule 2201, including implementation of best available control technology (BACT) and emission offsets, as required by regulations in force at that time. Forward Landfill- Project Description 3-11 BRYAN A.STIRRAT&ASSOCIATES J:\Allied\Forward\2007.0018 Lateral Expansion\Reports\Proj Descrip\021308 Final Proj Des\Sec 3.doc:2/13/2008)