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Mr. Connor Drinkard <br /> RE: Carr Pit East M-2022-005 <br /> June 27, 2022 <br /> 6.4.9 Exhibit I—Soil Information <br /> 30. The Cascajo gravely sandy loam material is mostly confined to the Lone Tree Creek drainage <br /> and, therefore, will not be a significant mined soil group. <br /> Exhibit I—Soil Information will include the following soil group information: <br /> The Cascajo gravely sandy loam is found on 5 to 20 percent slopes and located on land form <br /> breaks and ridges. This soil type is somewhat excessively drained and classified as <br /> Hydrologic Soil Group A. The water table is typically more than 80 inches below the soil. <br /> Its water holding capacity is low and areas containing this soil type are not prime farmland. <br /> 6.4.10 Exhibit J—Vegetation Information <br /> 31. The only estimate of carry capacity for the existing rangeland within and adjacent to the <br /> proposed permit area is from the landowner's current bison grazing operation. It is estimated <br /> that the rangeland carrying capacity is between 10 to 25 acres per animal unit. <br /> 6.4.12 Exhibit L—Reclamation Cost Estimate <br /> 32. The reclamation cost estimate in Exhibit L — Reclamation Costs has been revised to include <br /> changes from responses to previous comments, specifically Comment #14. The revised <br /> reclamations costs are attached. <br /> 6.4.19 Exhibit S—Permanent Man-Made Structures <br /> 33. Structure agreements have been offered to all owners of valuable and permanent man-made <br /> structures located within 200 feet of the affected land. Certified mailing receipts are attached. <br /> Notarized agreements will be provided to the Division as they are obtained. <br /> Where structure agreements cannot be obtained, the applicant proposes mining setbacks of <br /> three (3) times the pit depth from the permit boundary and/or other valuable and permanent <br /> man-made structures. The typical depth of mining is anticipated to be approximately 12 feet <br /> below the ground surface and current mining limits are 50 feet from the permit boundary. <br /> Additional Comments <br /> 34. Responses to agency referral comments are below. <br /> The Colorado Division of Water Resources comments have been reviewed and (1) no <br /> groundwater will be exposed during mining, (2) water trucked to the site will be obtained <br /> from a legal source (Well Permit No. 25144-F-R, and (3) stormwater will not be detained in <br /> the mining cell for more than 72 hours. <br /> The Office of Archaeology and Historic Preservation stated in their response letter that, `a <br /> finding of no adverse effect is appropriate'. As part of the property assessment, the applicant <br /> consulted with Histria Cultural Resource Consulting, LLC to evaluate any potential <br /> "Ar tblue ea- }I h Page 11 of 12 <br /> i ;� <br />