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REV09226
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REV09226
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Entry Properties
Last modified
8/25/2016 1:09:45 AM
Creation date
11/21/2007 10:00:46 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Revision
Doc Date
10/14/1997
Doc Name
REVIEW OF TECHNICAL REVISION NO 80 WEST ELK MINE PN C-80-007
From
J E STOVER & ASSOCIATES
To
DMG
Type & Sequence
TR80
Media Type
D
Archive
No
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<br />David Berry - 3 - October 10 1997 <br />The sequence of water inflow into the Bear No. 3 Mine provides virtually indisputable <br />evidence that nearly all of the inflows originate frortl MCC's 1 NW - 5NW Longwall <br />panels that are now referred to as the NW Sealed Sump. Small flow was initially <br />discovered in mid 1994 when Bear believes MCC was initially developing the bleeder <br />entries and set-up rooms for longwall panel 5NW. The flow increased in rnid 1995 after <br />MCC starting to routinely use the NW Sealed Sump. The flow increased further to <br />about 30 gpm in mid 1996 as the NW Sealed Sump continued to fill. <br />Bear cannot accept the financial responsibility for the impact of MCC's water Bumping <br />practices. Such financial impacts would include long term water monitoring and <br />treatment along with added potential for slide mitigation. Bear reiterates its position <br />that dewatering the NW Sealed Sump may be the only reliable mitigation alternative. <br />Sincerely, <br />=E"-~' <br />J. E. Stover, P.E. <br />Consulting Engineer <br />cc: Bear Coal Company <br />
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