Laserfiche WebLink
BASE AND SLOPE LEACHATE COLLECTION AND REMOVAL SYSTEM DESIGN <br />WMU FU -l4 <br />FORWARD LANDFILL <br />PROBLEM: <br />Size the leachate collection and removal system components for the base of WMU FU -14. <br />GIVEN: <br />These calculations were previously performed for the WMUs D-95, D-97, D-98, D-99, D-00, D-01, D-02, <br />FU -03, FU -04, FU -05, FU -06, FU -08, FU -10, and FU -13 design. The same methodology for performing <br />the previous calculations was used for the WMU FU -14 calculations. Previous calculations are used, <br />referenced, or attached, where applicable. <br />SUMMARY: <br />1. Required permeability of granular drainage material is 0.1 cm/sec. <br />2. Required permeability of coarse gravel is 1 cm/sec. <br />3. Specify 6 -inch diameter, SDR 11 HDPE pipe. <br />4. Specify perforation pattern for pipes of 1/2 -inch diameter holes drilled at third points every 6 -inches <br />along pipe length. <br />5. The temporary sumps are sized assuming the maximum leachate generation time is when there is only <br />a 10 -ft lift of refuse in the cell. <br />0 6. Site personnel will select the pump size. <br />