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T <br /> LANGsToN <br /> CONCRETE INC. <br /> Exhibit D: Mining Plan <br /> Langston Concrete Inc. does not intend to change the existing approved mining plan already in <br /> place with the DRMS. The addition of a sand wash plant is an added step in the material <br /> separation process already occurring at the site, not a change. Mining will continue to occur as it <br /> has since Langston Concrete Inc. has owned the property. <br /> Washed sand will be harvested from the reject products generated from the existing screening <br /> plant operation. No "new"mining will occur. The direction of the mining sequence will not <br /> change. Nor with the extraction process. There will also not be a shift in the focus of materials <br /> harvested from the existing deposit. We are not planning on halting, altering, or modifying any <br /> of the existing mining plan. The wash plant operation will be set up further down the line in the <br /> material separation sequence. We will be modifying the `mining operation' by adding the wash <br /> plant. <br /> Adding to the existing operation will change the way the reject material is handled. Currently, all <br /> 3/4" minus product is removed from the existing screening operation and placed in locations <br /> around the mine for reclamation purposes. It is currently considered reject. We will be changing <br /> that operation by pulling more marketable products from this reject material. Instead of going <br /> straight to the stockpiles for reclamation locations in the pit, we will run it through the wash <br /> plant and harvest C33 spec sand out of the reject while also creating 1/4" x " and a '/z " x 3/4" <br /> clean rock. The material separated out from this additional processing (reject) will then go to the <br /> locations around the pit for reclamation purposes. <br /> The C33 cement sand will be placed in a stockpile via a conveyor belt stacker to the North of a <br /> settling pond. The plated area where the sand is to be stockpiled will be graded in a Southern <br /> fashion to slope back towards the settling pond. Here we will attempt to capture the excess water <br /> in the sand and let it drain back into the settling pond for recirculation though the wash facility. <br /> The clean rock products will be stacked out on a conveyor belt stacker and shuttled via a haul <br /> truck to a location within the disturbed "stockpile" area to store for future retail sales. <br /> We have an employee on staff that use to work for two different organizations as a wash plant <br /> operator. We have leaned on his experience to develop operational processes for everything <br /> involved with washing sand. It will be our intention to place the reject material in a fashion to let <br /> it dry out for approximately one to two weeks. After it is dry enough it will be pushed up into a <br /> pile and/or moved to a location on the property for reclamation efforts. <br /> Please refer to the attached, exhibit D- Mining Plan Map, for the proposed location of the wash <br /> plant within the disturbance area at the pit. <br /> An added feature of the wash plant will be a new impoundment for settling reject solids out of <br /> the washing facility. The existing mine plan narrative states that "no water diversions or <br /> 902 South Union Street Florence, Co. 81226 (719) 784-3878 Office (719) 784-1158 Fax <br />