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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 2015 monitoring season.
<br />The Bowie No. 1 Mine has been idle for more than 18 complete monitoring seasons (1998 - 2015). 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 2015 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. B04 was removed as a
<br />monitoring point by technical revision number 55.
<br />Table 2 contains a listing of the laboratory parameters for surface and ground water to be tested in accordance
<br />with the mining permit application. Laboratory analyses are performed by SGS Accutest Mountain States,
<br />4036 Youngfield St., Wheat Ridge, CO 80033-3862 or by Enviro-Chem Analytical, Inc., 2493 Hwy 6 & 50, Unit
<br />7, Grand Junction, CO 81505.
<br />Table 3 contains local precipitation data for the year. This data is available from the internet at
<br />www.wrcc.dri.edu/summary/Climsmco.html select Paonia 1 SW (056306). The average precipitation for the
<br />period of record (1893 through 2015) is 15.39 inches. Precipitation during 2015 totaled 21.15 inches
<br />significantly above average.
<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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