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114 Shady Lane • Macomb, I L 61455 • (309) 833 -1313 'G <br />4 % <br />Technical Memorandum g ) 2. <br />rp <br />m , <br />r <br />0 <br />To: Office of Mined Land Reclamation, Division of Reclamation, Mining, and Safety ' <br />From: Aaron DeJoia, CPSS and CPAg <br />Key Agricultural Services, Inc. <br />Date: February 14, 2012 <br />RE: New Horizon Mine — Permit C- 1981 -008 Technical Revision for site specific field <br />conditions resulting in soil sampling changes. <br />Following is the technical explanation and documentation of field changes that were made and <br />approved to the sampling plan contained in TR-61 that was initially approved by the Division of <br />Reclamation, Mining, and Safety (DRMS) on November 2, 2011. These changes were made and <br />approved by personnel from DRMS, the Office of Surface Mining (OSM), the Natural Resources <br />Conservation Service (NRCS) in consultation with representatives of the owner of the affected <br />property during the soil resource stockpile sampling that took place on December 12 through 14, <br />2011. Attached to this report is the OSM Mine Site Evaluation that documents many of the <br />items discussed in this Technical Memorandum. We anticipate that this Technical Memorandum <br />will be submitted to DRMS in conjunction with an application for approval of the field sampling <br />described herein as "TR -62" pertaining to Western Fuels' current Mine Permit C- 1981 -001. <br />Introduction <br />Key Agricultural Services, Inc. <br />Following approval by DRMS of TR-61, soil sampling of the soil resource was completed on the <br />Morgan Property in two separate sampling events. First, on November 22, 2011 five soil test <br />pits were excavated and described in the undisturbed native soil areas on the western portion of <br />the Morgan Property. Second, on December 12 through 14, 2011, sampling was conducted on <br />the soil resource stockpiles and partially reclaimed areas (also known as the Substitute Subsoil <br />Redistribution Area) of the Morgan Property. As described more fully below, during the <br />sampling of the soil resource stockpiles 30 soil borings and seven pits were used to obtain soil <br />samples for laboratory analysis. Samples from the soil borings were collected on five foot <br />intervals on the large soil resource stockpiles. Pits were excavated on the two smaller soil <br />resource stockpiles after drilling was deemed inadvisable due to safety concerns. Three soil test <br />Page 1 <br />