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<br />shop bench. By grading the elope north of the shop and realigning the <br />drainage on the shop bench, this volume can be reduced to about 5 cfs <br />since the original Grading and Drainage Map was drafted in April 1985. <br />Therefore, when the sediment pond is completed, there should be far more <br />capacity in the pond than is needed because the pond will be constructed <br />for the 11 cfs volume. <br />The additional 6 cfs which originally went over or along the aide <br />of the shop slope, will be redirected to the vest of the shop into the <br />mayor drainage channel extending under the road and into the lover <br />sediment pond. This provides for a more controllable situation and also <br />helps divide the water flow between separate areas. The drainage will <br />contain a 72" steel pipe under the road from the processing area to the <br />shop (see map). Currently, the eater is supposed to be directed using a <br />ditch, but such ditching cannot be maintained under heavy traffic. The <br />pipe will be obtained from the pipe which vas removed from over Academy <br />Boulevard at the Sand Pit operation. <br />BACRFILL OF OLD ACCESS ROAD: The original plan called for ripping and <br />revegetating the old access road to the quarry. Although this plan <br />could be carried out, there seems to be a better alternative which would <br />result in a better topography and greater similarity with surrounding <br />lands. <br />South of the large drainage channel extending from the settlings <br />ponds above the road through this area, is the large backfill of subsoil <br />and parent material obtained when the current access road was built. <br />This area has been fully revegetated and produces heavily. However, to <br />the north of the drainage channel the situation is quite different. <br />s <br />Page 4 of 6 Pikeview TR N0.6 July 1987 <br />