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BACKFILLING AND GRADING - As each of the extraction areas have the resource removed, backfilbng and grading activities will commence, except for the working gravel face(s) The stockpiled overburden w,ll be hauled from its storage area located near the mining area by mobile egwpment and placed where required to achieve a level topography and properly backfilled slopes. All slopes vnll be re-graded no steeper than a ratio of 31 (horizontal to verticaq Grading will be done by dozers. and. or, loaders which will compact and stabilize the overburden material through normal operations. Selective handling or placement of overburden materials will not be necessary The overburden is a stream laid deposit which should not present any toxicity problems, TOPSOIL REPLACEMENT -Topsoil replacement will occur once all re-grading of an area disturbed by mining is complete Topsoil will be replaced to a thickness appropriate to establish vegetation communities consistent with the post-mine land use Topsoil will be replaced to a thickness of 6 to 6 inches thick The topsoil will be replaced with mobile equipment RE-VEGETATION -The intent of the re-vegetation in all areas, except Extraction Area B that is discussed in detail later ~n this Exhibit, is the establishment of plant communities consistent with the post-mine land use After topsoil replacement from stockpiles, seed bed preparation and stabilization may include one of the following tipping, disking. harrowing and furrowing Continuous analysis of re-vegetation success will determine the best type of preparation that should be used The seed mixture was selected to vegetate the disturbed areas with a specie consistent with the post•mine land use. Seeding recommendat Nr . Ci~1rP:1JPJ VaVE Fi"i'~.N GA.. rv~.P.1~ .. L. tr Mat Saltbarush Atriplex Corrugata Scarlet Globemallow Sphaeralcea Coccmea Shadscale Saltbrush Atriplex Confertdoba Galleta Hdana Jamesii -Viva" rdiar. Riceq•as: J^dsao>is Hvr~enn~des ' alorna ~ Seeding will normally be done in the fall or spring when temperatures and adequate soil moisture is present Seeding will be accomplished by either broadcasting, or by using a seed tlnll If broadcasting is used, seed rates will be doubled. Due to the nature of the overburden and topsoil found :n the area, hay. straw or fiber mulch is considered to be necessary Fiber mulch will be applied at a rate of 2.500 pounds per acre 11 straw mulch is used a will be certified -weed free" and appfied at a rate of 2,000 pounds per acre and ether crimped or'taufied" al 150 pounds per acre -Biosof ferttlrzer will be applied at a rate of al least 1000 pounds per acre I: Y- :i g_ - - ~ 'y' -- -_-~~ - - An example o(a reclaimed gravel pi! that would occur in Extraction Areas C and D.