Laserfiche WebLink
<br />B) Regrade all piles of gravel material from active area. Estimated total volume is 6000 cubic yards. <br />Cost is estimated at $0.50 per cubic yard, since a dozer can do the work and move distance should be <br />less than 130 feet with mild grade. Total cost is therefore 6000 cy x $0.50 = $3000. <br />Very little regrading will be needed on the rest of the site since the worst case scenario assumes that <br />the east side is already graded and topsoiled and the west side has been stripped of soil but not yet <br />disturbed. <br />C) Retopsoiling will be needed for the west mine area, which will have a disturbed area of 12.4 <br />acres. At an average replacement depth of 7 inches, the volume needed is 11670 cubic yards. This <br />volume would be obtained from the south berm and the excess stockpile that would be present in the <br />east area. The work could be done with scrapers and/or trucks/loaders. The average haul distance for <br />this work is approximately 650 feet and the average grade is 2%. Normally, this work can be done for <br />$0.75 per cubic yard. Costs are therefore 11670 cy x 50.75 = $8752. <br />D) Once the topsoil is placed, ripping and/or harrowing will be done to ensure that the topsoil is not <br />compacted before seeding is undertaken. This will either be done with a Cat D-8 with multi-shank <br />• ripper or with a tractor and faun harrow. This work will be done over the entire 29.0 acre retopsoiled <br />area. Cost are estimated at 5180 per acre x 29.0 acres = 55220. <br />E)The outlet ditch for the east mine area must be cut so that the area drains after reclamation. This <br />involves digging a trench and moving approximately 250 cubic yards of material. The ditch will then <br />be lined with large washed gravel. Estimated costs are 5800. <br />F) The revegetation plan calls for drill seeding the appropriate seed mix, crimp mulching I.~ tons per <br />acre and fertilizing according to soil test results. Judging by past experience at many sites and <br />knowing that there are no exotic seeds in the revegetation mix, the estimated unit cost of the work is <br />$640/acre. The costs for broadcast seeding and mulching on the 2:1 slopes are approximately the <br />same. Costs are therefore 5640/acre x 29.0 acres = 518560. <br />Adding A through F above results in a total direct reclamation cost of 540,532. <br />• <br />Carol Ann Permit CDMG Application 63 <br />