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<br />Banks and Gesso, LLC <br />will not proceed on this phase until the Lupton Bottom Ditch is reconstructed at <br />its original location. <br />The fifth and sixth phases of mining will encompass approximately 24 acres and <br />will proceed as described for previous phases. The final (sixth) phase will consist <br />of mining the initial plant site with groundwater discharge being pumped from the <br />southeast corner of the current plant site. Staged removal of the plant equipment <br />and final reclamation of the site will occur. <br />Mining Methodology <br />Once the topsoil has been stripped and stockpiled for each phase, a de-watering <br />trench will be excavated around the majority of each mining phase. The trenches <br />will "tie-in" at a low elevation of the bedrock in a sump area containing a <br />clarification stage. After settling, clarified water will be discharged. A de- <br />watering pump will be placed in the sump and the accumulated water will be <br />pumped to the South Platte River. A CPDS/Stormwater Discharge Permit for de- <br />watering and stormwater runoff for the plant and mining areas will be obtained. <br />The de-watering activities and plant process-water consumption is addressed by <br />a Gravel Well Permit Application and Temporary Substitute Supply Plan <br />submitted to the State Engineer's Office, a copy of which is contained within <br />Exhibit G, Water Information. <br />Once the mine phase area is de-watered, mining of the sand and gravel deposit <br />will be initiated. The applicant proposes to mine the deposit with front-end <br />Ft. Lupton Sand and Gravel Mine.CDMG.112 Permit 1 1 99024.WD <br />L.G. Everist, Inc. December, 1999 <br />