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<br />Stipulation No. 16 <br />STrN i~ <br />~~ IN THE EVENT THAT THE AERIAL PHOTOGRAMMETRIC MONUMENT SURVEYS FAIL TO <br />MEET 7HE STIPULATED ACCURACY CRITERIA, WECC SHALL UTILIZE TRADITIONAL <br />~' FIELD SURVEY TECHNIQUES TO ESTABLISH THE REASONS FOR LACK OF <br />p,,o/,,Jab CORRELATION. IF THE RESULTS CANNOT BE CORRELATED, WECC SHALL RESUME <br />TRADITIONAL FIELD SURVEY MONUMENT MONITORING, IN COMPLIANCE WITH THE <br />ACCURACY CRITERIA AND STANDARDS CONTAINED WITH STIPULATION N0. 15. <br />SrC y ,~ Stipulation No 17 <br />~-c, THE DIVISION DIRECTS WECC TO SUBMIT REPORTS OF ITS SUBSIDENCE MONITORING <br />PROGRAM ON A SEMI-ANNUAL BASIS, COMMENCING ONE MONTH AFTER THE <br />INSTALLATION AND INITIAL SURVEYING OF THE SUBSIDENCE MONUMENTS. FURTHER, <br />DUE TO THE COMPLEXITY OF THE PERMIT AREA, GEOLOGY, PRESENCE OF LANDSLIDES <br />AND STEEP SLOPES, AND SENSITIVE HYDROLOGIC ELEMENTS, WECC IS DIRECTED TO <br />SUBMIT A PROPOSED SUBSIDENCE MONITORING REPORT FORMAT TO THE DIVISION FOR <br />APPROVAL. THIS REPORT FORMAT SHOULD RECOGNIZE THE IMPORTANCE OF <br />CONTINUAL UPDATE OF SUBSIDENCE DATA INTERPRETATION, MONITORING OF GROUND <br />WATER LEVELS AND SPRING FLOWS, MONITORING OF MINE INFLOW, AND SUBSURFACE <br />GROUND CONDITIONS WHICH COULD 8E CORRELATED TO SUBSIDENCE PREDICTION. <br />THIS REPORT FORMAT SHALL BE APPROVED BY THE DIVISION PRIOR TO THE <br />COMMENCEMENT OF EXTRACTION OF COAL WITHIN THE SUBSIDENCE TEST PANEL <br />DESIGNATED IN APPENDIX A TO WECC'S NOVEMBER, 1984 PERMIT REVISION <br />APPLICATION (PANEL 1W-1 S). <br />Stipulation No. 18 <br />sr <br />THE DIVISION DIRECTS WECC TO COMPLETE A DETAILED ANALYSIS OF THE <br />f!A POTENTIAL EFFECTS UPON THE SLOPE STABILITY OF THE LANDSLIDE DEPOSITS <br />ADJOINING BEAVER RESERVOIR. WECC SHALL INSTALL AND MONITOR AN <br />b~ ~I~ylr' APPROPRIATE SET OF MONUMENTS ON THE LANDSLIDE DEPOSITS IN ORDER TO <br />OBSERVE THE POTENTIAL DISPLACEMENT GF THE LAND FORM. THE DETAILED <br />ANALYSIS SHALL BE COMPLETED AND SUBMITTED TO THE DIVISION FOR REVIEW, <br />PRIOR TO REQUEST FOR APPROVAL TO EXTRACT COAL BENEATH THE LANDSLIDE <br />DEPOSITS ADJOINING BEAVER RESERVOIR. <br />Stipulation No. 19 <br />ST ~~ THE DIVISION DIRECTS WECC AS A PORTION OF ITS SUBSEQUENT PERMIT <br />Fu APPLICATIONS FOR THE MINE, TO SUBMIT REVISED SUBSIDENCE EVALUATIONS. THE <br />SUBSIDENCE EVALUATION FOR EACH PERMIT PERIOD REQUESTED SHALL INCORPORATE <br />p ~ b/~y/~ THE RESULTS OF SUBSIDENCE MONITORING AND THE LANDSLIDE STABILITY STUDIES <br />COMPLETED TO DATE, AS STIPULATED ABOVE. PARTICULAR ATTENTION SHALL BE <br />FOCUSED UPON DESIGNATED SAFE AREA BUFFERS, TD BE OBSERVED IN FUTURE <br />MINING BENEATH CRITICAL AREAS, INCLUDING THE DRY FORK OF MINNESOTA CREEK, <br />AND BEAVER RESERVOIR AND THE LANDSLIDE DEPOSITS ADJOINING IT. THE <br />AMENDED SUBSIDENCE EVALUATIONS SHALL INCLUDE THE PROPOSAL OF APPROPRIATE <br />SUBSIDENCE MONITORING NETWORKS WITHIN EACH OF THESE DESIGNATED AREAS. <br />11 <br />