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Page 3 The size of the diversion ditches would depend upon the anticipated runoff. The higher elevations with a limited watershed runofi_ area w ld have a 2' bottom width (Type A) and as the runoff area uses the ditches would increase in size to Type C. It w be the option of the operator to determine the size as it would be necessary for him to provide adequate drainage to'insure continued operation. Construction of the ditches would be by dozer and back hoe. The ditches would be lined with riprap as necessary to re- ' duce "cutting". Maintenance of the ditches would be periodic and be consistent with good quarrying practices. 6. Shrubs and trees were not included in the reclamation pro- posed by the SCf~. It is anticipated that this type of revegatation would propagate naturally. Mr. Thorson has investigated thEa possibility of growing fruit trees in the reclaimed quarry. This is a possibility that would be decided at the time of final reclamation. 7. The settling arEaa proposed on the mining plan is to be used to contain topsoil and other materials that normally would run off into the wash to the north of the proposed area. The roadway suri~ace would be at the 5840 level. The cul- vert bottom would be 2-3 feet below the road surface. The roadway slopes orould have riprap to prevent erosion. The settling area will be cleaned as needed, and the material that i:; removed will be stockpiled for use in the final reclamation. Since this runoff will be intermittent, there will be na problem of keeping the area open and free of debris. The capacity of the se inverted height of the extreme runoff will be The settling area will of the year. Upon the settling area ccuild be ttling area will depend upon the culverts and is designed so that allowed to exit through the culverts. contain water during limited times final disposition of the quarry the left as a water source for wild life. INMINCO