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WAGNER <br /> Construction, Inc. <br /> 1850 E. 15t. Street, Craig, CO 81625 <br /> Phone & Fax (970) 824-2709 <br /> WagnerCorp@q.com <br /> EXHIBIT L(6.4.12)—Reclamation Costs <br /> Reclaimed General Agricultural Cost—Reference Exhibit E and Exhibit F <br /> 1. Reclaimed General Agricultural Vegetation—16±Acres <br /> 1. Reclaimed General Agricultural Vegetation Plan <br /> Pit Slopes—All slopes will be constructed at a 2 to 1 slope or flatter during mining <br /> operations. Proposed depth of 60 feet results in a slope height of 135 feet. Slopes will <br /> be roughened and contour furrows will be constructed with a dozer to minimize <br /> erosion. No overburden or fill material will be necessary to create 2 to 1 slopes as <br /> they will be created during mining process Estimated acreage of slope area is 4.6 <br /> acres. Because slopes are created as mining progresses slope construction will be <br /> ongoing. After 800 linear feet of slopes have been mined topsoil will be applied and <br /> revegetated in the October following. <br /> Topsoil - Post mined reclamation at the Wagner Rock mine, will consist of top- <br /> soiling all side slopes with approximately 4-6"of stockpiled topsoil material. <br /> Estimated yardage of topsoil is 2000 cubic yards. Topsoil will be moved from the <br /> topsoil stockpiles along the perimeter of the excavation to revegetation areas using <br /> loaders and dump trucks or a D-9 Cat Dozer. Reclamation and revegetation of the 2 <br /> to 1 slopes within the excavation will have a 4-6" depth of topsoil, suitable for plant <br /> growth medium applied to all exposed slopes. Within the Reclaimed General <br /> Agriculture Vegetation Area approximately 3.98 acres previously covered by <br /> stockpiled topsoil will be ripped 18-24"to remedy compaction and revegetated <br /> leaving original topsoil in place. This area is located in the flat areas to the south of <br /> the pit. <br /> Seeding - Seeding will be conducted by drilling or hand broadcast at a rate directed <br /> by USDA of 4.771b per acre. Seeding will be seasonal according to recommendation. <br /> All areas of reclamation will be revegetated with a dry land seed mix in accordance <br /> with USDA Recommendations (See seed mix attachment) <br /> This seed has an approximate retail price of$160.00 per 100 lbs <br /> Fertilization - All vegetation reclamation areas will receive 18-46-0 fertilizer at a <br /> rate of 2001bs. per acre using seed drill fertilizer combination unit Great Plains no till <br /> drill with fertilizer applicator <br /> Erosion Control—Mulching is not necessary if revegetation is conducted in late fall <br /> prior to snowfall. Erosion will be controlled by roughing, pocking, and contour <br /> furrows. If mulching is necessary, weed free straw mulch will be applied at a rate of 2 <br /> tons per acre and crimped in place. Mulch will be applied to disturbed areas <br /> immediately after seeding with wind velocities of 15 miles per hour or less. The <br />