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REV94187
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REV94187
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Entry Properties
Last modified
8/25/2016 3:19:44 AM
Creation date
11/21/2007 11:38:32 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981041
IBM Index Class Name
Revision
Doc Date
1/30/2001
Doc Name
MINE WATER INFLOW AND ELEVATION ANALYSIS ROADSIDE MINE POWDERHORN COAL CO PN C-81-041
Type & Sequence
TR33
Media Type
D
Archive
No
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<br />' David Berry - 3 - January 26. 2001 <br />way. PCC has initiated discussions with the DOH regarding the installation of the <br />dewatering system. PCC owns the coal where the borehole will penetrate the mine <br />workings. <br />Mr. Mike Jamison, PCC's Acting General Manager indicated PCC is willing to install <br />the North Decline dewatering system as soon as all necessary permits are in place, <br />contingent upon Bank Group approval. The timing would also be affected by <br />Contractor availability since drilling an inclined hole into a flooded mine requires a <br />specialty drilling contractor. <br />Enclosed are the following permit documents: <br />Paoe/Drawing(Figure Discussion <br />Tab 14 TOC Added figures 14-8 - i 1 to table of contents <br />14- 29 & 30 Updated text to reflect new flow calculations <br />Figure 14-7 Revised flow rates at discharge points <br />Figure 14- 6 & 8 Supply 3 certified drawings <br />Figure 14-9 Roadside South Portal -Mine Inflow Rate Determination <br />Figure 14-10 North Decline Mine Discharge System -Flow Calculation <br />Figure 14-11 Siphon System -Flow Calculation without Siphon Influence <br />Please let me know if you have any questions. <br />Sincerely, <br />~~~~ <br />J. E. Stover, P.E. <br />Consulting Engineer <br />
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