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il <br />11 <br />containment features of of the site and incorporate standard <br />elements of other regulatory agencies. The design elements of <br />the landfilling and site expansion shall always focus on control- <br />ling flooding, surface drainage, erosion, leachate production and <br />escapement of gases. <br />The drainage structures, including channels, ditches, berms, <br />oversize drains and energy dissipators shall control surface <br />water runoff and prevent inudation or washouts during the land- <br />filling operation and after site closure, Surface drainage <br />calculations shall be prepared to substantiate the design. <br />The landfill shall be designed to promote sufface runoff and <br />thereby minimize any potential infiltration of surface water <br />through the soil cover to the waste. A water balance study for <br />the completed (at closure) landfill shall bere ared to substan- <br />tiate <br />p bs tan- <br />tiate the waste cell design. The water balance study should <br />reflect the required steps that will be taken to preclude infil- <br />tration of precipitation as waste cells are constructed to <br />closure grade. (mote; daily, intermediate, and closure covers and <br />the immediate planting of vegtation will minimize erosion and <br />maximize evapotranspiration of moisture.) <br />The site review and development report to be prepared by the <br />engineer shall address in sufficient detail the following <br />information: <br />3 <br />