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GeoSyntec Consultants <br />closure. Based on their research, the entire Forward Landfill qualifies for a 5 -year <br />deferral for a landfill gas design plan and installation. The need for a gas collection <br />system at the landfill will be re-evaluated in the year 2004. The SCS Engineers' letter <br />report is included in Appendix A. <br />2.2.4 Drainage and Erosion Control <br />Surface water run-off from the site is currently diverted to a series of ditches and <br />pipes leading toward an on-site sedimentation pond in the southwest comer of the site. <br />A native grass mixture has been planted over the final cover of WMU A, and over the <br />intermediate soil cover on portions of WMU B, B -north, C, D-87, D-88, D-93, and <br />D-95. The vegetation helps to minimize the erosive effects of rainfall and surface water <br />runoff. <br />Due to relatively flat grades, surface water run-on from neighboring properties and <br />Austin Road does not impact the site. Flow within the south fork of the South <br />Littlejohns Creek is contained within the banks of the creek, and does not run-on to the <br />landfill site. The site is not within the 100 -yr flood plain per the site WDRs. Surface <br />water monitoring is conducted within the sedimentation basin prior to discharge into the <br />creek. <br />J:\ALLIED\FORWARD\CLOSUREPLAN\REPORT 2-4 99.11.30 <br />