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Mr. Dave Canning <br />Page five <br />April 15, 1982 <br />3. Ditch 10 from the ranch road culvert to the <br />has an excessively high velocity during pas <br />design flow. Sun land must provide evidence <br />as it exists is capable of passing flows of <br />degradation or provide an exceptable design <br />for this structure. <br />natural drainage <br />sage of the <br />that the channel <br />10.5 fps without <br />and implementation <br />4. As presented the portal access road is not in compliance with <br />Rule 4.03.2(3). If the access road could be demonstrated to <br />be one road of approximately 1000' in length rather than two <br />roads, the overall pitch of the road would not exceed the 15% <br />limitation. <br />5. Inspection reports have identified a frequently recurring problem <br />of blockage of culvert C-3. The source of the excess sediment <br />should be identified and alternative methods should be described• <br />2.05.4 Reclamation Plan <br />(2)a) Timetable <br />The timetable should be resubmitted clarifying why it will take <br />18 months to backfill and grade 5.6 acres of disturbed area. <br />In relation to the major steps of reclamation, it would be <br />beneficial after grading if the pad area were ripped to alleviate <br />compaction. The timing for topsoiling, planting and mulching <br />should be included. <br />2.05.4(2)b Bonding Calculations <br />When reclamation costs are evaluated within the Division certain <br />assumptions are made: First, all costs are based upon a private <br />contractor under the supervision of the Mined Land Reclamation <br />Division performing all work required; Secondly, there is no <br />salvage value for any structures or equipment; Furthermore, <br />detailed calculations for reclamation activities are evaluated <br />using the Cat Handbook-Edition 11 or 12 and the Rental Rate Blue <br />Book for construction equipment. In the light of these evaluation <br />criteria, the reclamation costs as presented on page 185 are <br />inadequate. A detailed cost analysis for each phase of reclamation <br />must be presented taking into account alterations in the recla- <br />mation plan as suggested in this adequacy letter. <br />