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C <br />r <br />0 <br />u <br />n <br />a suitable rooting zone for vegetation. The final soil cover will be placed and <br />vegetated as landfill modules are brought to final grade. The vegetation will <br />minimize erosion, enhance evapotranspiration, and blend the completed landfill <br />with existing terrain. <br />The landfill grading plan features an undulating configuration to eliminate an ex- <br />tensive surface drainage system without sacrificing drainage control during con- <br />struction and after completion of the landfill. Drainage control will be handled by <br />collecting sheet flow runoff in the landfill drainage swales and passing it to the <br />perimeter ditches. Runoff will travel along the perimeter ditches and will be dis- <br />charged to the natural drainage channels that exit the site along the west and <br />south perimeters. <br />Screening berms and soil stockpiles are shown in the grading plan. These <br />screening berms will be constructed south of the high-voltage transmission lines <br />to shield landfill operations from Harney Lane. <br />PJ9 9390219A.00W 35 Rev. 0 July 19, 1989 <br />