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2015-04-10_REPORT - C1996083
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2015-04-10_REPORT - C1996083
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Last modified
3/29/2017 10:16:09 AM
Creation date
4/13/2015 9:31:11 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996083
IBM Index Class Name
Report
Doc Date
4/10/2015
From
J. E. Stover & Associates, Inc.
To
DRMS
Annual Report Year
2014
Permit Index Doc Type
Hydrology Report
Email Name
JDM
DIH
Media Type
D
Archive
No
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Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2014 Annual Hydrology Report <br />blocked at 60-feet so no monitoring can be performed. Drill Holes DH-57, 57a and <br />DH-58, 58a were added in conjunction with the Terror Creek Coal Exploration Plan, with <br />monitoring beginning in the fall of 1999.Drill holes DH-57 and DH57a were destroyed <br />by longwall mining during 2001. DH-58 and 58a were eliminated by mining during late <br />2003 so they are no longer monitored. <br />Drill holes DH-65, DH-66, DH-67D, DH-67blw and DH-67abv were added in conjunction <br />with the Iron Point Federal coal lease, with some monitoring beginning during the fall of <br />2000. DH-67D was damaged during 2003 so no monitoring was performed. The DH- <br />67 holes were refurbished during 2004. DH-66 was eliminated by mining during early <br />2004 so it is no longer monitored. DH-67blw had a pinched casing so a new DH-67blw <br />was drilled during 2014. <br />Drill holes DD-NM4X98-27, 28 and 29 were in-mine monitoring holes which were added <br />to the monitoring program during 2003. The three monitoring points were abandoned <br />when the mine activity retreated from the east mains in mid 2004. TC-03-01, 02 and 03 <br />were added to the monitoring program during 2003. TC-03-03 was sealed in 2010 <br />because a ventilation shaft was constructed where TC-03-03 was located. Monitoring <br />wells TC-03-01 and TC-03-02 could not be rehabilitated during 2014. The wells could <br />be used as water level piezometers but the wells are not functional for water quality <br />data. Monitoring results for these well is of questionable value. <br />Drill holes CWI-DH-58 and CWI-DH-60 were added to the monitoring program in 2011 <br />with the approval of permit revision 12 to cover the area west of Terror Creek. <br />Monitoring well CWI-DH-60 was cleaned and rehabilitated between August 20 and <br />August 23, 2014. On August 22, 2014, the well was evacuated using the airlift and <br />bailing techniques and the water quality showed a pH of 7.70 s.u., conductivity of 863 <br />S/cm, and temperature of 20.5° C. After a 12 hour recovery period, the SWL was <br />measured at 892.0 feet btoc (August 23, 2014). <br />A new well CWI-DH-58a was drilled to replace CWI-DH-58 late in 2014. The Applicant <br />drilled DH-2010-1SS and DH-2010-1B during 2011. DH-2010-1B is completed in the <br />B-Seam and DH-2010-1SS is completed in a water bearing zone above the B-Seam. <br />Drill hole 2010-1B was refurbished during 2014.After the 2014 well rehabilitation work, <br />2010-1B had the following water quality: pH 9.75 su, conductivity 277 umhos/cm, total <br />iron 4.31 mg/l, manganese 0.0621 mg/l. <br />Conclusion <br />The results of the hydrologic monitoring conducted during the 2014 season indicate <br />consistent chemical and physical properties when compared with the baseline values <br />provided in the permit application. Longwall mining is the focus of all mining operations <br />6 <br />
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