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Ms. Polly Kratman 17 January 2007 Page 9 appendices to the final report. The as-built record drawings will be prepared for the Project, in CADD format, in order to illustrate the details of construction, any approved design changes, and other relevant information. The final CQA certification report and as-built record drawings will be signed and sealed by a registered professional engineer in the State of Florida . Geosyntec will prepare the report within 30 days of completing the construction activities. Five copies of the final CQA certification report will be submitted to FDEP for approval on behalf of SWDD . An electronic copy of as- built drawings in AutoCAD 2000 format will also be submitted to SWDD . Task 3 : GCCS Plan Phase 1 : GCCS Design Plan Geosyntec understands that as-built documentation, including as-built drawings and gas well construction logs, has been compiled by the SWDD for the existing gas system . Geosyntec understands that the as-built drawing will be available as a computer-aided drafting and design drawing that is readily useable without extensive editing. Based on this information, Geosyntec will develop a GCCS Design Plan reflective of the landfill ' s final build-out condition to an elevation of 185 ft NGVD . This will include tying in the existing GCCS with the future landfill gas collection system to the extent practicable. The GCCS will be designed so as to minimize existing gas well abandonment, which may include extending existing vertical gas wells or constructing remote wellheads that connect to existing gas wells . Development of the GCCS Design Plan will be based on projected waste filling rates and waste stream properties. Landfill gas generation over the life of the existing Class I landfill will be estimated using the United States Environmental Protection Agency' s Landfill Gas Emissions Model Version 3 . 02 (AP-42). Projections of gas generation are best made using site- specific design parameters such as methane generation rate (k) and potential methane generation capacity (Lo) . Geosyntec will meet with SWDD to identify site- specific design parameters. In the event that site- specific information is not available, Geosyntec will use the default parameters defined in AP -42. The GCCS design plan will include a title sheet, an existing conditions drawing, two design site plan drawings, a well construction information sheet, three detail sheets , and a surface emission monitoring route site plan. The drawings will include the calculated radius of influence of each well , map header line location and size, lateral pipe network and size, and condensate management system locations . It is assumed that the current number, capacity, and location of flares are sufficient. It is anticipated that the final design conditions will consist solely of vertical extraction wells . XL06230i01 - 17-2007 JL70002doc en ;�ineer � I scientists I innu�°uturs