Introduction
<br />Bowie Resources Limited acquired the Orchard Valley Mine from the Cyprus Orchard Valley Coal Corporation
<br />in December 1994. Bowie Resources Limited was acquired by Bowie Resources, LLC in December 2003.
<br />The underground coal mine (renamed the Bowie No. 1 Mine) is approximately two miles north of Paonia,
<br />Colorado. The Bowie No. 1 East Mine has not operated since it was sealed in June 1986, following a mine
<br />fire. The areal extent of the East Mine workings was 1,156 acres at that time. During July 1993, rehabilitation
<br />efforts at the portal area of the East mine were completed and the mine workings of the East and West mines
<br />were connected. Only the first fifteen crosscuts of the East mine were reopened with the rest of the mine
<br />remaining sealed and inactive. Mining ceased at the Bowie No. 1 Mine on December 4, 1997.
<br />The coal mined from both the East and West mine is in the "B" seam of the Mesaverde Coal Member.
<br />Hydrologic monitoring began at the mine in 1983. The area affected by mining was reduced to 2,714 acres
<br />with the approval of permit revision no. 4 since some of the East mine workings are incorporated into the
<br />Bowie No. 2 Mine permit boundary. This report presents monitoring results from the 2011 monitoring season.
<br />The Bowie No. 1 Mine has been idle for more than 14 complete monitoring seasons (1998 - 2011). Several
<br />monitoring points are no longer available for monitoring due to a mechanical collapse of drill holes. Bowie No.
<br />1 received permission through a revision to the permit document (TR -34) to eliminate these holes from the
<br />monitoring schedule.
<br />The approval of permit revision no. 4 transferred a number of monitoring points from the Bowie No. 1 Mine to
<br />the Bowie No. 2 Mine. Terror Creek Monitoring stations SW -1, SW -2, SW-4 and SW -10 were transferred.
<br />Stevens Gulch ponds 81, 7 -2, 7 -7, 7 -11, 12 -1, 12 -2, 12 -9, 12 -10, 12 -11, 18 -4, 82, 1 -4 and 1 -6 were
<br />transferred. Terror Creek ponds 1 -11, 6 -2, 6 -5, and 8-4 were transferred. Coal Gulch ponds 17 -1, 18 -1 and
<br />83 were transferred. Stevens Gulch Springs 19, 23, 7 -4, 7 -5 and 12 -4 were transferred. Terror Creek Springs
<br />16, 17, 18, 20, 21, 22, 1 -3, 1 -5, 5 -1, 6 -1, 6-4, 6 -6, 7 -1, 7 -9, 7 -10 and 8 -5 were transferred. Groundwater
<br />monitoring wells CWI DH -58 and DH -60 were also transferred. All of the stations transferred except SW -10
<br />and spring 20 were inactive monitoring points for the Bowie No. 1 mine.
<br />The following 2011 Annual Hydrology Report narrative is divided into ten parts. Discussion is presented by
<br />each monitoring category identified in Table 1 - Summary of Hydrologic Monitoring Stations - Required
<br />Monitoring for Annual Hydrology Report.
<br />Table 1 (immediately following this narrative) defines the monitoring points by type and sample frequency, field
<br />parameter sampling schedule and laboratory parameter sampling schedule. Several monitoring points have
<br />been removed from the surveillance schedule and are noted on this table as such. This table also lists the
<br />NPDES monitoring points. Discharge monitoring reports, submitted to the DRMS quarterly, are incorporated
<br />into this report by reference.
<br />Table 2 contains a listing of the laboratory parameters for surface and ground water to be tested in
<br />accordance with the mining permit application. Laboratory analyses are performed by ACZ Laboratories, Inc.,
<br />2773 Downhill Drive, Steamboat Springs, CO 80487 or by Enviro -Chem Analytical, Inc., 685 West Gunnison
<br />Ave., Suite 108, Grand Junction, CO 81501.
<br />Table 3 contains local precipitation data for the year.
<br />Table 4 contains a listing of all monitoring points that have been undermined by the Bowie No. 1 Mine, the
<br />date of mining, and the panel or section that undermined them.
<br />Table 5 contains a listing of all monitoring points that are potentially impacted by the angle of draw of the
<br />underground workings of the Bowie No. 1 Mine. Since the mine has been reclaimed, no prediction of potential
<br />monitoring point impacts is presented.
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