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<br />control in pond pl is 0.137 acre-feet and in pond q2 is 0.192 <br />acre-feet. There is approximately 1 acre at the low level of <br />the spill containment pit, giving a water and sediment depth of <br />1.7 inches. For drainage on the northern storage area, a berm <br />constructed approximately 1.5' high along the west and north side <br />of the low area will give approximately 0.5 acres of storage area. <br />The water and sediment depth in this pond would be 3.9 inches. <br />In both areas, the actual depth may be up to 1 foot due to <br />irregularities in the ground level. A ditch and berm will be <br />constructed as shown on Map 2.05.3(7)-1 along part of the northeast <br />boundary to divert water from the stockpiles into the pond, and <br />to divert other water away. Both ponds will be nondischarging, <br />therefore no N.P.D.E.S. permits will be applied for. <br />For the area east of the tracks, a CN of 95 would account for the <br />paved areas, the graveled areas, and the roof tops. The run-off <br />for this 9.80 acres using the S.C.S. formula would be 1.11 inches/ <br />acre or 0.44 acre-feet for the entire area. A berm will be <br />installed from the corner of the office to the former factory <br />building as sediment control for the domestic coal stockpile area <br />The design runoff for this 1.1 acres is 1.22 acre-inches. Con- <br />sidering the slope of this area, the water would cover approximately <br />6000 s.f. to a maximum depth of 12" at the berm. A dirt berm <br />2' high will be installed. The berm will be non-discharging. A <br />small area exemption is requested for the remaining 3.7 acres <br />around the office because of the use, surfacing and the slope of <br />0.5~. <br />The other area being requested for a small area exemption is the <br />area south of the office, which was included in the original <br />permit application. The 5.35 acres between the office and <br />First Street has been cleaned up and covered with topsoil from <br />the beet wash ponds (see analysis of this topsoil in Tables 2.04.9 <br />(1)(b)-2 through 5, samples T-3 and T-4). This area will be <br />seeded in the spring of 1984 with Blue Grama, Buffalo Grass, and <br />Galleta Grass at 1, 10, and 4 pounds PLS/acre respectively. This <br />area is being requested for exemption due to its exclusion from <br />the permit boundary, the reclamation in progress, the industrial <br />REVISED August 21, 1984 <br />120 <br />