1987-12-01_PERMIT FILE - C1981017 ‎(106)‎

• Permit No: C1981017
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/1/1987
• Doc Name: New Coal Refuse Disposal Facility
• Section_Exhibit Name: Chapter II Appendix II-B-5 ‎(Part 1 of 2)‎
• Media Type: D
• Archive: No

-4-
THE PERMITTEE SHALL SUBMIT THE REPORT OF THE GEOTECHNICAL INVESTIGATION
AND STABILITY ANALYSIS, THE DETAILED MATERIAL BALANCE, AND A DETAILED
PORTAL BENCH RECLAMATION PLAN TO THE DIVISION FOLLOWING THE SCHEDULE ON
PAGE 21 .2 OF CHAPTER V, VOLUME 7 OF THE APPLICATION.
Stipulation No. 7
THE PERMITTEE SHALL SUBMIT A BACKFILLING AND GRADING PLAN, INCLUDING
CROSS-SECTIONS AND MAPS OF THE PROPOSED POST-MINING CONTOURS, FOR THE
PREPARATIONS PLANT AREA TO THE DIVISION FOR APPROVAL BY DECEMBER 31 ,
1984. THE PERMITTEE MUST OBTAIN DIVISION APPROVAL OF THE BACKFILLING
AND GRADING PLAN AND THE PERMIT APPLICATION MUST SUBSEQUENTLY BE
UPDATED TO INCLUDE THE APPROVED BACKFILLING AND GRADING PLAN BY MARCH
29, 1985.
Stipulation No. 8
THE DIVISION DIRECTS THE PERMITTEE TO COMPLETE A THOROUGH MAPPING OF
THE EXISTING. HAUL ROAD SYSTEM AT THE COAL BASIN MINES. THIS MAPPING
SHALL INCLUDE TOPICS SUCH AS BEDROCK AND SURFICIAL GEOLOGY, EXPOSURE TO
LANDSLIDING AND AVALANCHING, METHOD OF ROAD CONSTRUCTION (CUT VERSUS
FILL) , AND ORIGINAL CROSS-SLOPE ANGLES, AT A MINIMUM. THE PURPOSE OF
THIS RECONNAISSANCE AND MAPPING PROGRAM SHALL BE TO CATEGORIZE THE
EXISTING HAUL ROAD SYSTEM, IN ORDER TO ALLOW THE DEVELOPMENT OF TYPICAL
RECLAMATION PROCEDURES FOR EACH CATEGORY OF ROAD. THE PERMITTEE SHALL
COMPLETE THIS MAPPING AND CATEGORIZATION AND SUBMIT THE MAPS AND
ACCOMPANYING REPORT TO THE DIVISION FOR REVIEW PRIOR TO DECEMBER 31 ,
1983.
FURTHER, THE PERMITTEE SHALL PREPARE A DETAILED MATERIAL BALANCE,
DESIGNATING THE PROPOSED SOURCE OF MATERIALS TO BE UTILIZED IN
COMPLETING THE BACKFILLING AND GRADING OF THE HAUL ROAD SYSTEM. THE
PERMITTEE SHALL ALSO PROPOSE SPECIFIC BACKFILL, GRADING, DRAINAGE, AND
RECLAMATION PROCEDURES TO ASSURE OPTIMUM STABILITY OF THE FINAL REDUCED
HAUL ROAD CONFIGURATION. THE PERMITTEE SHALL SUBMIT THE MATERIAL
BALANCE TO THE DIVISION ACCORDING TO THE SCHEDULE ON PAGE 21 .4 OF
CHAPTER V, VOLUME 7 OF THE APPLICATION.
j/ Stipulation No. 11 $'�f,Ce
PRIOR TO CONSTRUCTION OF THE ACCESS ROAD IN DISNEY CANYON, THE
PERMITTEE MUST EITHER COMMIT TO CONSTRUCTION OF THE ROAD CUTS AT A
GRADIENT NO STEEPER THAN lh: lv IN ROCK AND 1 .5h:ly IN UNCONSOLIDATED
MATERIAL AND COMMIT TO CONSTRUCTION OF ROAD EMBANKMENT AT GRADIENT NO
STEEPER THAN 1 .5h:ly OR SUBMIT APPROPRIATE GEOTECHNICAL ANALYSES WHICH
SHOW THAT THE PROPOSED ROAD CUTS HAVE A MINIMUM SAFETY FACTOR OF 1 .5
AND THE ROAD EMBANKMENTS HAVE A MINIMUM SAFETY FACTOR OF 1 .25. IF THE
PERMITTEE COMMITS TO THE STIPULATED CONSTRUCTION GRADIENT ABOVE, THE
CROSS-SECTIONS MUST BE CHANGED ON THE MAP.
18