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Mr. Himanshu Mchta, P.E. 1 December 2009 Page 4 prevented obtaining enough vacuum to allow construction of the cap system on the North Slopes; (iv) increase in the actual quantities of the 10 unit price/NTE work items; and (v) problems of obtaining readily available and suitable (relatively dry) material from the borrow area for use by the Contractor. Because SWDD was responsible for excavation and stockpiling of borrow area soils for use by the Contractor, it was necessary to coordinate access to the borrow material so that the Contractor could directly excavate and haul borrow areas soils. This coordination effort by Geosyntec was needed in order to avoid delays and resulting claims by the Contractor. Significant leachate seepage outbreaks were encountered during the final regrading and recontouring of the waste surface than what was anticipated during the design and preparation of the Construction Drawings. It should be noted that the presence of leachate seeps was of a major concern to the FDEP Central District that they welcomed the planned closure of the sideslopes under this project. The leachate seeps and/or build-up of liquids within the landfill also impacted the vertical extraction gas wells to the extent that dedicated pumps had to be installed to evacuate accumulated liquids within in each well. These change orders were approved and authorized through the use of the contingency funds within the approved total contract amount. These change orders were first reviewed by WMIF, as the General Contractor, then followed by a review and a recommendation regarding approval by Geosyntec, with a final approval and authorization by SWDD management. As subsequently explained below, this approach was necessary to continue without interruption of the construction and thereby avoid delays and standby claims by the Contractor. Geosyntec worked interactively with the Contractor and WMIF to come up with the necessary design changes and recommended approval by SWDD for the construction project to continue as planned. Therefore, using the contingency funds allowed construction to proceed as intended and thereby resulted in an overall cost savings and benefits to SWDD and the County. The use of contingency funds to account for Contractor change orders is commonly used in landfill construction projects, especially municipal and county -owned facilities that cannot provide immediate approval of change order requests without going through a formal Board review. It is worth noting that such approach was successfully used during the remediation of the Gifford Road Landfill project in 2004 and that project was completed under budget. Borrow Pond Development Project The borrow pond preparation work by Sawmill Ridge Trucking started on I I May 2009 and was estimated, based on the schedule provided by the Contractor, to be completed by 31 August 2009. However, due to problems controlling the level of water in the adjacent borrow pond, following the severe rain storms during the period, dewatering activities by the Contractor had to be extended to FL 1537-01 /JL90230.docx