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iiiiuiiiiiiiiiihi <br />Doc Date:12/11I2001 <br />1.0 INTRODUCTION <br />This report is submitted to the Office of Mined land Reclamation (OMLR), Division of Minerals and <br />Geology, in fullfillment of the requirements outlined in Appendix 15-4 of permit C-81-008. This <br />report presents the data and analysis resulting from the hydrologic monitoring program for the period <br />October 1, 1991 through September 30, 1992. <br />1 During this monitoring period, the Nucla and Nucla East properties and permits were transferred from <br />Peabody Coal Company to Western Fuels-Colorado, A Limited liability Company (WFC). The <br />-~ permit transfer was approved by OMLR on May 15, 1992. Hydrologic monitoring activities were <br />assumed by WFC in late June 1992. Prior to that time, Peabody Coal Company performed all <br />monitoring activities. <br />After the property and permits were transferred, the mines were renamed the New Horizon Mine. <br />_ To help distinguish the old mining area from the new mining area, the Nucla Mine (old area) is now <br />called New Horizon 1 and Nucla East (new area) is now New Horizon 2. Since the monitoring was <br />done under the program for temporary cessation of mining, data was collected only at New Horizon <br />1. <br />During the fourth quarter of 1992, the New Horizon Mine was returned to active status. Anew <br />hydrology monitoring plan has been proposed and is currently being revised as per OMLR <br />requirements. The annual hydrology report for the October 1992 -September 1993 water year will <br />be based on the new hydrology monitoring plan as it is approved. <br />The Hydrology Monitoring Site Location Map is included with this report as Plate 1. This is also Map <br />2.04.7-1 from permit C-81-008. <br />1 <br />