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=OWn IM "'IF i i,U' <br />Waste Management Unit A AWMU AJ, <br />Surface flow from WMU A enters an east by west curb and <br />gutter system which was installed along the northern property <br />line paralleling the main entrance road. Additionally, a six- <br />foot wide valley gutter was installed across the main entrance <br />road to join the flowline of the curb and gutter. At the end of <br />the curb and gutter lies a temporary ditch which channels flow <br />into the the stormwater retention basin it north of WMU D-89. <br />The portions of the access road that lie between WMU A and the <br />the retention basin are graded at 2%, causing all surface runoff <br />to drain into the retention basin. <br />Access roads <br />All access roads that do not drain into the retention basin north <br />of WMU D-89 are graded at 2%, causing surface runoff to collect <br />in a drain swale that channels all flow the the main runoff <br />collection area at the southwest, corner of the property. <br />WMU B and WMU D-87 <br />Runoff from WMU B and WMU D-87 is directed to the south <br />through down drains, and into the South Little John Creek area, <br />described below® <br />WMU D-88 South and WMU E <br />All surface runoff is contained within these individual. <br />waste management units. <br />WMU D-88 North <br />A berm directs the surface runoff to the west, into a down <br />drain and pipe that crosses the access road to the drain swale. <br />This runoff is then directed to the main runoff collection are -a. <br />