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U. BACMYMLING OF THE EXCAVATION <br /> Fill the bottom eight inches of the excavation with 31411 washed gravel wrapped <br /> in geotextile fabric <br /> t <br /> - OverIay the gravel with PVC geomembrane to the top of the excavation <br /> - Place clean fill material in the excavation and compact in six-inch loose lifts <br /> Overlap a secondary PVC geomembrane at approximately six-inches below <br /> grade and install an asphalt ground cover <br /> VM%111694 CAP 6 <br />