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~~ ~ IIIIIIIIIIIIIIIIIII • <br />999 <br />• <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />131 3 Sherman 51., Room 215 <br />Denver, CO 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />January 14, 1994 <br />TO: Harry Ranney <br />FROM: Tony Waldron ~V! <br />OF'~~/a <br />„~ i ~~ <br />R ~ <br />.~. <br />/g,6 <br />Roy Romer <br />Governor <br />Michael B. Long <br />Division Director <br />MEMO <br />RE: National King Coal, Inc., Permit # C-81-035, Permit Revision-04 <br />Per your request, I have completed a review of the soils and <br />vegetation data for the National King Coal Mine permit revision-04. <br />The areas that I reviewed were the soils and vegetation baseline <br />data and the reclamation plan as it pertains to soils and <br />vegetation. The following observations were made. <br />Soils Resource Information- 2.04.9 <br />The area surrounding the disturbed area appears to have been <br />properly mapped and identified. However, the maps submitted ( both <br />soils and vegetation) are somewhat unclear in that the boundaries <br />between the units are not very distinct. Generally on these maps <br />the boundary lines are unique so as to be easily distinguished from <br />contour or property lines etc.. Often the soil or vegetation type <br />delineation lines follow closely along contours but the two should <br />be distinct from one another. If I understand the reclamation plan <br />correctly the topsoil to be used for reclamation will be borrowed <br />from the Lawrence Huntington property which is in the valley bottom <br />upland from the refuse disposal area. This area was left out or not <br />clearly or adequately described in the baseline data. It is not <br />clear from reading the permit text and reviewing the soils map <br />whether topsoil was salvaged and stockpiled and if so how much. At <br />any rate not enough was stockpiled to complete reclamation and <br />additional undisturbed material will have to be borrowed. ~F3'otn <br />discussions with you, the stockpiled material may not be topsoil at <br />all, but a subsoil or topsoil substitute. Therefore, the operator <br />will need to do the following: <br />1. Conduct a analysis of this soil material to determine its <br />suitability as a growth medium and/or topsoil substitute. This will <br />involve sampling of the material for laboratory analysis including <br />the following parameters. <br />conductivity <br />pH <br />$ organic matter <br />textural analysis <br />sodium adsorption ratio <br />