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<br />Revaion N3-Page 7 of 30 <br />A 10-ft to 20-ft lens of sand ,gravel and cobble material is located under the overburden material <br />described above. This material will be extracted and processed. In general, the upper portion of <br />this lens contains more fine-grained sand material. Cobbles within the lens are anticipated to <br />range in size upto sixteen inches in diameter. <br />Below the sand and gavel lens is weathered silty clay Mancos Shale, which is considered bedrock <br />in this portion of Mesa County. Mancos Shale is a dazk gray-to-gray block, thin-bedded to <br />laminated shale with interbeds of siltstone and sandstone. <br />(gi /denlify the primary and secondary commodities to be mined/ertracled and describe the intended use: <br />The primary commodities are sand and gravel which will be used for construction materials. <br />Secondary commodities consist of the overburden soils, which will be used, along with additional <br />inert imported materials, for backfill to reclaim the project site. Overburden soil may also be <br />needed for "fines" to produce the road base materials. <br />(hJ Name and describe the intended use oja!l expected incidental products to be mined/extracled by the <br />proposed operation. <br />Incidental products mined ftom the site consist of overburden soils which will be used primarily <br />for site backfill /reclamation. Overburden soil may also be required for "fines" to produce road <br />base materials. <br />