Laserfiche WebLink
West Elk Mine (C-1980-007) MT-9 <br /> Section III - Status of Stipulations <br /> The stipulation history for the West Elk Mine was reviewed as part of the midterm review. The review <br /> included an investigation of any stipulations imposed since the last permit renewal, and any <br /> responses to existing stipulations received since the last permit renewal. Any stipulations associated <br /> with this permit and issued over the life of this operation which are not discussed in this midterm <br /> review have been complied with or terminated. <br /> Three outstanding stipulations remain attached to permit number C-1980-007 and are listed below: <br /> Stipulation No. 3 <br /> THE OPERATOR SHALL, UPON CLOSURE, INSTALL WATER-TIGHT SEALS WITHIN THE MINE TO <br /> PREVENT GRAVITY DISCHARGE. THIS REQUIREMENT MAY BE WAIVED UPON THE DIVISION'S <br /> APPROVAL OF A PLAN SUBMITTED BY THE OPERATOR. THIS PLAN SHALL INCLUDE A <br /> DEMONSTRATION THAT THE WATER QUALITY OF THE DISCHARGE FROM THE MINE WORKINGS <br /> WILL BE OF ACCEPTABLE QUALITY AND WILL REMAIN ACCEPTABLE AFTER MINE CLOSURE. THIS <br /> SHALL INCLUDE CHEMICAL ANALYSIS AND A PREDICTIVE MODEL THAT USES OXIDATION AND <br /> REDUCTION POTENTIAL TO DETERMINE LONG-TERM WATER QUALITY OF MINE WATERS. ALSO, <br /> THE PLAN SHALL INCLUDE THE CONSTRUCTION OF A SUITABLE CHANNEL FOR MINE DISCHARGE. <br /> STATUS: FUTURE <br /> Stipulation No. 7 <br /> THE DIVISION DIRECTS MOUNTAIN COAL COMPANY, PRIOR TO ANY DISTURBANCE AT THE <br /> UPPER WASTE SITE, TO INSTALL SEVERAL ELECTRONIC TILT METER TUBES DOWNSLOPE FROM <br /> THE TOE OF THE PROPOSED WASTE STRUCTURE. THESE TILT METER INSTALLATIONS SHALL BE <br /> INSTALLED AS SPECIFIED IN MCC'S AUGUST 15, 1985 SUBMITTAL. ONE INDICATOR SHALL BE <br /> INSTALLED WITHIN 160 FEET OF THE TOE OF THE WASTE PILE CURRENTLY HALF WAY BETWEEN <br /> MONUMENTS 51 AND 54. THE SECOND SHALL BE INSTALLED APPROPRIATELY 100 FEET <br /> NORTHEAST OF MONUMENT S2, 160 FEET NORTH OF THE TOE OF THE WASTE PILE, AS <br /> INDICATED ON DRAWING NO. MG-R C-001, INCLUDED IN THE PERMIT REVISION NO. 6 <br /> APPLICATION. DURING THE INSTALLATION OF THESE TILT METER TUBES, THE OPERATOR SHALL <br /> AUGER AND LOG THE SURFICIAL AND BEDROCK STRATIGRAPHY ENCOUNTERED. AUGERING <br /> SHALL CONTINUE UNTIL THE OPERATOR HAS ESTABLISHED INTACT BEDROCK OCCURRENCE. IF <br /> ANY EVIDENCE OF EXISTING LANDSLIDE DEPOSITS IS ENCOUNTERED, THE OPERATOR SHALL <br /> DEFINE THE NATURE AND EXTENT OF THE PRE-EXISTING SLOPE INSTABILITY. IF SUCH LANDSLIDE <br /> ACTIVITY IS DISCERNED, THE OPERATOR WILL BE REQUIRED TO APPROPRIATELY RECONFIGURE <br /> THE PILE DESIGN, PRIOR TO INITIATION OF ANY CONSTRUCTION ACTIVITY. <br /> STATUS: FUTURE. <br /> Page 12 of 14 <br />