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1992-12-16_GENERAL DOCUMENTS - C1980007
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1992-12-16_GENERAL DOCUMENTS - C1980007
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Last modified
1/24/2021 7:37:52 PM
Creation date
11/23/2007 11:30:19 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
General Documents
Doc Date
12/16/1992
Doc Name
Proposed Decision & Findings of Compliance for RN2
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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DRMS Re-OCR
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Signifies Re-OCR Process Performed
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OR APPROPRIATELY AMEND, THE FINDINGS OF THE RECONNAISSANCE GEOLOGIC <br /> MAPPING OF THE ROADWAY CORRIDOR. <br /> FURTHER, MOUNTAIN COAL COMPANY, UTILIZING THE FINDINGS OF THE FINAL <br /> GEOTECHNICAL INVESTIGATION, SHALL COMPLETE A FINAL ENGINEERED CUT-SLOPE <br /> AND DRAINAGE DESIGN FOR THE UPPER WASTE PILE ACCESS ROAD. THIS FINAL <br /> DESIGN SHALL BE APPROVED BY THE DIVISION, IN WRITING, AND THE <br /> CONSTRUCTION COMPLETED IN ACCORDANCE WITH THAT DESIGN, PRIOR TO THE <br /> TRANSPORTATION OF ANY WASTE MATERIAL ALONG THAT ACCESS ROAD. <br /> STATUS: Terminated <br /> Stipulation No. 12 <br /> THE DIVISION DIRECTS MCC TO COMPLETE THE INSTALLATION OF THE SUBSIDENCE <br /> MONITORING NETWORK PRIOR TO THE INITIATION OF EXTRACTION OF COAL WITHIN <br /> THE PANEL DESIGNATED IN APPENDIX A TO THE NOVEMBER 1984 PERMIT REVISION <br /> APPLICATION ENTITLED "APPLICATION TO REVISE THE MINING AND RECLAMATION <br /> PLAN FOR THE MT. GUNNISON NO. 1 UNDERGROUND MINE. " THIS MONITORING <br /> NETWORK IS DESIGNED TO MONITOR THE FIRST PANEL WEST FROM THE SW MAINS <br /> INTAKES AND SOUTH OF THE NO. 1 WEST SUBMAINS, DESIGNATED AS <br /> "PANEL 1W-1S, " LOCATED ADJACENT TO AND PARALLEL TO THE WESTERN BOUNDARY <br /> OF SECTION 21 , RANGE 90W, TOWNSHIP 135. THIS MONITORING NETWORK SHALL <br /> CONSIST OF SUBSTANTIAL MONUMENTS DESIGNED TO RESIST FROST-HEAVE, FIRE, <br /> AND THE ACTIONS OF CATTLE AND WILDLIFE. <br /> STATUS: Complied With <br /> Stipulation No. 13 <br /> THE SUBSIDENCE MONITORING NETWORK SHALL BE SURVEYED UTILIZING <br /> CONVENTIONAL GROUND SURVEYING TECHNIQUES, DESIGNED TO ACHIEVE HORIZONTAL <br /> ACCURACIES COMPLYING WITH THE U.S. DEPARTMENT OF COMMERCE'S "SECOND <br /> ORDER, CLASS II" SURVEY STANDARDS, AND VERTICAL ACCURACIES NO LESS THAN <br /> +0.2 FEET. THIS GRID SHALL BE SURVEYED TWICE PRIOR TO THE INITIATION OF <br /> SUBSIDENCE. IN CONJUNCTION WITH THESE SURVEYS, MCC SHALL SELECT AND <br /> ESTABLISH A MINIMUM OF SIX TRIANGULATION BENCH MARK MONUMENTS OUTSIDE THE <br /> AREA OF ANTICIPATED SUBSIDENCE EFFECTS, FOR THE PURPOSE OF CORRELATION <br /> WITH AERIAL PHOTOGRAMMETRIC POST-SUBSIDENCE SURVEYS. <br /> STATUS: Terminated <br /> Stipulation No. 14 <br /> MCC HAS REQUESTED PERMISSION TO COMPLETE A PRE-SUBSIDENCE AERIAL <br /> PHOTOGRAMMETRIC SURVEY OF THE SUBSIDENCE MONITORING GRID, FOR THE PURPOSE <br /> OF CORRELATION WITH THE FIELD SURVEY RESULTS. IT IS MCC'S INTENTION TO <br /> UTILIZE AERIAL PHOTOGRAMMETRIC METHODOLOGY TO MONITOR POST-SUBSIDENCE <br /> MOVEMENTS OF THE SUBSIDENCE MONUMENTS. THE RESULTS OF THE PRE-SUBSIDENCE <br /> FIELD AND AERIAL PHOTOGRAMMETRIC SURVEYS SHALL BE COMPARED FOR EACH GRID <br /> MONUMENT. THE AERIAL SURVEY WILL BE ACCEPTED AS ACCURATE AND WILL BE <br /> USED FOR SUBSEQUENT POST-SUBSIDENCE MONITORING, IN THE EVENT THAT THE <br /> AERIAL PHOTOGRAMMETRIC AND FIELD SURVEYS CORRELATE WITH AN AVERAGE SURVEY <br /> POINT LOCATION DEVIATION OF LESS THAN 0.2 FEET VERTICALLY AND <br /> -6- <br />
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