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<br />• , iii iiiiiiiiiiiii iii <br /> <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />171 ] Sherman 51., Room 215 <br />Denver, CO 80207 <br />Phone: 1303) 866-3567 <br />FAX:1307)832-8106 <br />January ii, 1994 <br />Mr. Lloyd V. "Buck" Barnhart <br />3 Sedum Court <br />Pueblo, CO 81001 <br />Re: Calh~ln Clay Pit, File No. M-93-OSO, Adequacy Letter <br />Dear Mr. Barnhart, <br />os cow <br />ti'o4 <br />~~ <br />~r.~~~ <br />re ]6 ~ <br />Roy Romer <br />Governor <br />Michael B.long <br />Drvrsion Director <br />During review of the above-mentioned pit application, the following <br />items, some of which we discussed on the phone last week, came to <br />the Division's attention as needing clarification: <br />1. In the correspondence received by the applicant from Colorado <br />Department of Health (CDOH), Air Pollution Control Division <br />(of which we have a copy), regarding an air pollution emission <br />permit, an annual production rate of 70,000 tons or less was <br />cited. Is this in fact what the production will be? I found <br />no other references to it in the application. <br />2. Exhibit C contains a set of maps which need some corrections <br />or additional features. The Pre-mining Map (and the others <br />too) should have the location of the overhead powerlines moved <br />to the north side of the road, within the fence in Section 8. <br />The applicant must also supply statements addressing potential <br />damage to and liability for the existing significant man-made <br />structures within the affected area or 200 feet. This <br />includes the powerlines, plus landowner's fences, culverts and <br />gates, field terraces, and county bridges. <br />3. The Mining Map in Exhibit C shows good detail for Phase I, but <br />nothing for Phase II (or III). Please provide your best <br />estimation of details for the depth and direction of mining, <br />stockpile locations, buffer areas, etc., for the west area. <br />Please also show any access points, roads, culverts, etc., on <br />the applicable maps. <br />4. The Mining Map in Exhibit C mentions an Average Topsoil Depth <br />of 7 inches, whereas the exhibit's text states such depth as <br />5 inches, and ranging from 4 to 7 inches. Please clarify. <br />5. Exhibit D mentions an overburden layer at depth of 2 to 10 <br />feet. Exhibit E states that "there will be no spoil." Is <br />this overburden to be regarded as distinct and different from <br />spoil? Please clarify. <br />