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WASTE MANAGEMENT UNIT G (Contaminated Soil Stockpile Area) <br />In WMU-G, west of WMU-D exists the Contaminated Soil Stockpile <br />Area. Surface water will be retained in this area through the use <br />of a 24" soil berm. Water is then directed to a central depression <br />were it is transferred via a PVC piping system to the Leachate <br />Evaporation pond. See the attached diagram for specific details. <br />SOIL SOCKPILE <br />A stockpile of approximately 10,000 cubic yards of cover soil <br />has been placed along the western edge of the main access road <br />between WMU-A and the storm water retention basin north of D-89. <br />This stockpile has been covered (on top) with visqueen and tires to <br />prevent vertical infiltration of moisture. Soil was placed at this <br />location for "easy" access to D-89 for winter cover material. <br />Roadways <br />ACCESS ROAD CONSTRUCTION <br />The main access road was constructed using six inches of <br />compacted base rock. Arterial roadways leading off the main access <br />road are constructed of six inches of base rock placed over a woven <br />geotextile. All facility roads drain at a 2% slope, inhibiting <br />ponding water. <br />ACCESS ROAD DRAINAGE <br />All access roads that do not drain into the retention basin <br />north of WMU-D:89 have been graded at 2%, directing the runoff to <br />collect in drainage culverts channeling flow to the southwest <br />retention basin. <br />K <br />