2022-06-08_PERMIT FILE - M2022001 (2)

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The aggregate reserves at the site consist mainly of gravelly sand which grades to sandy gravel,usually becoming more gravelly with depth. Some cobble units(grain size 4"or greater)were encountered at the site; mainly consisting of a few feet overlaying bedrock. Aggregate unit thickness varied from 35 feet in BH-36 in the northern side of the site to 72.5 feet in BH-27 in the eastern side of the site. There is a large contiguous clay seam that encompasses almost the entire site.The clay seam varies from only 1 foot of thickness in the northwest to 23 feet of thickness in the southeast comer of the site. (ii.) Nature of the stratum immediately beneath the material to be mined in sedimentary deposits Depth to bedrock ranges from 39.5 feet in BH-38 in the northeast corner of the site to 97.5 feet in BH-41 in the southeast comer of the site. The bedrock encountered at the site consists of wet brown weathered claystone in the first 6 inches to 1 foot which transitioned in to moist to dry,olive to grey claystone with further depth. (g) Identify the primary and secondary commodities to be mined/extracted and describe the intended use. The primary commodities are sand, gravel and fill; intended for construction materials. (h) Name and describe the intended use of all expected incidental products to be mined/extracted by the proposed operation. Gold may be extracted as an adjunct component of any wash equipment installed at the site. (i) Specify if explosives will be used in conjunction with the mining(or reclamation) No explosive material will be used on-site. (j) Specify the dimensions of any existing or proposed roads that will be used for the mining operation. Describe any improvements necessary on existing roads and the specifications to be used in the construction of new roads. New or improved roads must be included as part of the affected lands and permitted acreage. Affected land shall not include off-site roads which existed prior to the date on which notice was given or permit application was made to the office and which were constructed for purposes unrelated to the proposed mining operation and which will not be substantially upgrades to support the mining operation. Describe any assocated drainage and runoff conveyance structures to include sufficient information to evaluate structure sizing. The affected land and permitted acreage is inclusive of over one and one-half miles of land directly abutting public roadways;there is no need for any additional driveways, and on-site haul roads will be incidental to mining areas depicted on the Mining Plan Map. No roadways are affected by the mining operation other than access roads within the permit boundary and existing public roads to the site. The Operator will apply for a Weld County Access Permit for the site. Section 20—Gravel Mine—MLRB 112 Permit Amendment Exhibit D-6