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1 12 APPLICATION PAGE 14 OF 35 <br />• <br />3.1.3 Time Limit and Phased Reclamation <br />Mining at this site will be progressive. Backfill placement required for <br />site reclamation work will occur behind the sand and gravel high <br />wall. Topsoil placement, mulching, seeding, and fertilizing activities <br />may be delayed until all sand and gravel has been mined from the <br />site. Final Reclamation for the 32.5 -acre area is anticipated to <br />require six months to complete. <br />3.1.4 Public Use <br />The owner will not to allow public use of the permit area for <br />recreation purposes. <br />3.1.5 Reclamation Measures - Material Handling <br />(1.) Reclamation grading for this project will be performed in <br />accordance with the Exhibit F drawings included with this <br />application. The reclamation plans will restore the site to <br />essentially a pre-mining topographic condition, and planted with <br />Jose Tall Wheatgrass, Alkali Sacaton, Western Wheatgrass, and <br />Galleta. <br />(2.) Backfilling will be accomplished using existing site overburden, and <br />imported inert fill materials. Backfill areas will be compacted to <br />minimize settlement. No hazardous fill material will be used at the <br />• site. <br />(3.) Runoff generated within the project site will be permitted to be <br />released offsite in accordance with the Process Waters Storm <br />Water Management Permit. All grading will be such that all work <br />areas will drain towards the settling ponds located at near the <br />southwest corner of each of the respective mining areas. All <br />mined areas will be backfilled and compacted to the grades <br />specified in the reclamation plan map. <br />(4.) The permit area will be progressively mined and backfilled. The <br />overburden material removed as mining progresses across the site <br />will be used as backfill material, in addition to imported inert fill, <br />behind the active sand and gravel mine high wall area. Deep <br />tilling, topsoil placement, mulching, seeding, and fertilizing work <br />will commence when all sand and gravel has been mined from <br />the site. Mining for the sand and gravel is expected to require 5 <br />years to complete. Once all sand and gravel material stockpiles <br />are depleted, the 32.5 acre site will then be deep tilling, mulched, <br />seeded and fertilized which will require a minimum of three months <br />to complete. <br />(5.) No refuge, acid forming, or toxic producing materials are expected <br />to be encountered during this operation. If these materials are <br />exposed, they will be addressed in accordance with the State of <br />Colorado requirements <br />(6.) All drill and auger holes that are part of the permit area will be <br />removed during the sand and gravel mining process. <br />• (7.) The site will be backfilled and graded in accordance with the <br />reclamation plan. No slopes will be greater than 3:1.