2008-04-30_REPORT - C1981038 (5)

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• Introduction Bowie Resources Limited acquired the Orchard Valley Mine from the Cyprus Orchard Valley Coal Corporation in December 1994. Bowie Resources Limited was acquired by Bowie Resources, LLC in December 2003. The underground coal mine (renamed the Bowie No. 1 Mine) is approximately two miles north of Paonia, Colorado. The Bowie No. 1 East Mine has not operated since it was sealed in June 1986, following a mine fire. The areal extent of the East Mine workings was 1,156 acres at that time. During July 1993, rehabilitation efforts at the portal area of the East mine were completed and the mine workings of the East and West mines were connected. Only the first fifteen crosscuts of the East mine were reopened with the rest of the mine remaining sealed and inactive. The existing coal processing support facilities at the East mine were reactivated during 1993. The West mine was opened in January 1987. The areal extent of the West mine at the end of 2007 remains unchanged and is approximately 764 acres. The combined acreage of the East and West mines is approximately 1,920 acres. The coal mined from both the East and West mine is in the "D" seam of the Mesaverde Coal Member. Hydrologic monitoring began at the mine in 1983. This report presents monitoring results from the 2007 monitoring season. The Bowie No. 1 Mine has been idle for more than 10 complete monitoring seasons. Several monitoring points are no longer available for monitoring due to a mechanical collapse of drill holes. Bowie No.1 received permission through a revision to the permit document (TR-34) to eliminate these holes from the monitoring schedule. The following 2007 Annual Hydrology Report narrative is divided into ten parts. Discussion is presented by each monitoring category identified in Table 1 -Summary of Hydrologic Monitoring Stations -Required Monitoring for Annual Hydrology Report. • Table 1 (immediately following this narrative) defines the monitoring points by type and sample frequency, field parameter sampling schedule and laboratory parameter sampling schedule. Several monitoring points have been removed from the surveillance schedule and are noted on this table as such. This table also lists the NPDES monitoring points. Discharge monitoring reports, submitted to the DRMS quarterly, are incorporated into this report by reference. Table 2 contains a listing of the laboratory parameters for surface and ground water to be tested in accordance with the mining permit application. Laboratory analyses are performed byACZ Laboratories, Inc., 2773 Downhill Drive, Steamboat Springs, CO 80487 or by Enviro-Chem Analytical, Inc., 685 West Gunnison Ave., Suite 108, Grand Junction, CO 81501. Table 3 contains local precipitation data for the year. Table 4 contains a listing of all monitoring points that have been undermined by the Bowie No. 1 Mine, the date of mining, and the panel or section that undermined them. Table 5 contains a listing of all monitoring points that are potentially impacted by the angle of draw of the underground workings of the Bowie No. 1 Mine. Since the mine is currently idle, no prediction of potential monitoring point impacts is presented. Table 6 contains a listing of all actively monitored points, with descriptions of their locations and a reference to the Monitoring Point Figure that contains this year's monitoring data. Ponds were sampled for water quality when discharging or inflows/outflows were occurring. Ponds in the permit area are typically spring-fed or seep-fed and exhibit diffuse non-concentrated areas of inflow. Often the pond outlets present the only point of concentrated flow at which flow measurements and field parameters can ;~ ,