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emulation No. 6 <br />THE DIVISION DIRECTS MOUNTAIN COAL COMPANY PRIOR TO ANY DISTURBANCE AT THE <br />UPPER WASTE PILE SITE TO SUBMIT AN APPROPRIATE AMENDMENT TO THE OPERATION PLAN <br />WITHIN THE EXISTING PERMIT TO LIMIT EXTRACTION BENEATH THE WASTE PILE AND WITHIN <br />A DEFINED BUFFER ZONE TO PRIMARY DEV ELOPMENT ONLY. THE SURFACE BUFFER ZONE <br />WILL BE DEFINED BY THE SUBSIDENCE ANGLE OF DRAW. <br />STATUS: FORGIVEN 8/$/1993 <br />Stipulation No. 7 <br />THE DIVISION DIRECTS MOUNTAIN COAL COMPANY, PRIOR TO ANY DISTURBANCE AT THE <br />UPPER WASTE SITE, TO INSTALL SEVERAL ELECTRONIC TILT METER TUBES DOWNSLOPE FROM <br />THE TOE OF THE PROPOSED WASTE STRUCTURE. THESE TILT METER INSTALLATIONS SHALL <br />BE INSTALLED AS SPECIFIED IN MCC~S AUGUST 1$, 198$ SUBMITTAL. ONE INDICATOR <br />SHALL BE INSTALLED WITHIN 160 FEET OF THE TOE OF THE WASTE PILE CURRENTLY HALF <br />WAY BETWEEN MONUMENTS 51 AND $4. THE SECOND SHALL BE INSTALLED <br />APPROPRIATELY 100 FEET NORTHEAST OF MONUMENT S2, 160 FEET NORTH OF THE TOE OF <br />THE WASTE PILE, AS INDICATED ON DRAWING NO. MG-R C-0O1, INCLUDED M THE PERMIT <br />REVISION NO.6 APPLICATION. DURING THE INSTALLATION OF THESE TILT METER TUBES, <br />THE OPERATOR SHALL AUGER AND LOG THE SURFICIAL AND BEDROCK STRATIGRAPHY <br />ENCOUNTERED. AUGERING SHALL CONTINUE UNTIL THE OPERATOR HAS ESTABLISHED <br />INTACT BEDROCK OCCURRENCE. IF ANY EVIDENCE OF EXISTING LANDSLIDE DEPOSITS IS <br />ENCOUNTERED, THE OPERATOR SHALL DEFINE THE NATURE AND EXTENT OF THE PRE- <br />EXISTING SLOPE INSTABILITY. IF SUCH LANDSLIDE ACTIVITY IS DISCERNED, THE OPERATOR <br />WILL BE REQUIRED TO APPROPRIATELY RECONFIGURE THE PILE DESIGN, PRIOR TO INITIATION <br />OF ANY CONSTRUCTION ACTIVITY, <br />STATUS: FUTURE. <br />Stipulation No. 8 <br />SURFACE WATER AND GROUNDWATER MONITORING OF THE LOWER PERMANENT <br />UNDERGROUND DEVELOPMENT WASTE PILE WILL INCLUDE THE CHEMICAL CONSTITUENTS <br />SELENIUM, UN-IONIZED AMMONIA AND NITRATE/NITRITE. DETERMINATION OF NITRITE <br />CONCENTRATION W[LL BE MADE ONLY WHEN DEEMED NECESSARY BY THE DIVISION. <br />RESULTS AND INTERPRETATIONS ARE TO BE INCLUDED ON A CONTINUING BASIS IN THE <br />WEST ELK COAL COMPANY QUARTERLY HYDROLOGY REPORTS. ANNUAL HYDROLOGY <br />REPORTS ARE TO INCLUDE A SUMMARY OF SEASONAL CHANGES, IF ANY, FOR ALL CHEMICAL <br />CONSTITUENTS (SURFACE WATER AND GROUNDWATER MONITORED DURING THE YEAR. <br />ANNUAL HYDROLOGY REPORTS ARE TO INCLUDE AN ASSESSMENT OF THE IMPACTS OF THE <br />LOWER WASTE PILE TO THE HYDROLOGIC BALANCE DURING THE PREVIOUS YEAR. <br />STATUS: COMPLIED WITH $/18/1987 <br />