2018-09-04_REVISION - C1980007 (11)

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iii DEVELOPMENT WASTE PILE WILL INCLUDE THE CHEMICAL CONSTITUENTS SELENIUM, UN-IONIZED AMMONIA AND NITRATE/NITRITE. DETERMINATION OF NITRITE CONCENTRATION WILL BE MADE ONLY WHEN DEEMED NECESSARY BY THE DIVISION. RESULTS AND INTERPRETATIONS ARE TO BE INCLUDED ON A CONTINUING BASIS IN THE WEST ELK COAL COMPANY QUARTERLY HYDROLOGY REPORTS. ANNUAL HYDROLOGY REPORTS ARE TO INCLUDE A SUMMARY OF SEASONAL CHANGES, IF ANY, FOR ALL CHEMICAL CONSTITUENTS (SURFACE WATER AND GROUNDWATER) MONITORED DURING THE YEAR. ANNUAL HYDROLOGY REPORTS ARE TO INCLUDE AN ASSESSMENT OF THE IMPACTS OF THE LOWER WASTE PILE TO THE HYDROLOGIC BALANCE DURING THE PREVIOUS YEAR. STATUS: COMPLIED WITH 5/18/1987 Stipulation No. 9 ANNUAL HYDROLOGY REPORTS ARE TO INCLUDE, PURSUANT TO RULE 2.04.7(1)(B), A MAP SHOWING THE PIEZOMETRIC SURFACE OF THE COLLUVIAL AQUIFER IN THE AREA OF THE LOWER PERMANENT UNDERGROUND DEVELOPMENT WASTE PILE, IF ONE DEVELOPS. STATUS: COMPLIED WITH 5/13/1988. Stipulation No. 10 THE DIVISION DIRECTS MOUNTAIN COAL COMPANY TO COMPLETE A THOROUGH RECONNAISSANCE GEOLOGIC MAPPING OF THE PROPOSED UPPER WASTE PILE ACCESS ROADWAY CORRIDOR. THE APPLICANT SHALL PLACE SPECIFIC EMPHASIS UPON THE DETECTION OF SLOPE INSTABILITY EVIDENCE AND DRAINAGE CHARACTERISTICS OF THE PROPOSED ROAD ALIGNMENT. FURTHER THE DIVISION DIRECTS MCC, UTILIZING THE RESULTS OF THE MAPPING, AND EARLIER ADJOINING SURFACE FACILITY ROAD DESIGN STUDIES, IF APPROPRIATE, TO COMPLETE A PRELIMINARY ACCESS ROAD CUT-SLOPE STABILIZATION AND DRAINAGE DESIGN. THE MAPPING AND PRELIMINARY DESIGN SHALL BE APPROVED BY THE DIVISION, IN WRITING, PRIOR TO ANY DISTURBANCE OF THE ACCESS ROAD CORRIDOR. STATUS: TERMINATED 5/28/1992. Stipulation No. 11 THE DIVISION DIRECTS MCC TO CONSTRUCT THE UPPER WASTE PILE ACCESS ROAD AS AN INITIAL PIONEER ROAD WITH MINIMIZED EXCAVATION. UPON EXPOSURE OF THE EXCAVATED CUT-SLOPES OF THAT PIONEER ROADWAY THE OPERATOR SHALL COMPLETE A FINAL GEOTECHNICAL INVESTIGATION OF THE ACCESS ROAD CORRIDOR. THIS GEOTECHNICAL INVESTIGATION SHALL BE COMPLETED BY APPROPRIATELY QUALIFIED PROFESSIONAL GEOLOGICAL OR ENGINEERING PERSONNEL. THE PURPOSE OF THIS FINAL INVESTIGATION SHALL BE TO VERIFY, OR APPROPRIATELY AMEND, THE FINDINGS OF THE RECONNAISSANCE GEOLOGIC MAPPING OF THE ROADWAY CORRIDOR. FURTHER, MCC, UTILIZING THE FINDINGS OF THE FINAL GEOTECHNICAL INVESTIGATION, SHALL COMPLETE A FINAL ENGINEERED CUT-SLOPE AND DRAINAGE DESIGN FOR THE UPPER WASTE PILE ACCESS ROAD. THIS FINAL DESIGN SHALL BE APPROVED BY THE DIVISION, IN WRITING, AND THE CONSTRUCTION COMPLETED IN ACCORDANCE WITH THAT DESIGN, PRIOR TO THE TRANSPORTATION OF ANY WASTE MATERIAL ALONG THE ACCESS ROAD. STATUS: TERMINATED 5/28/1992. Stipulation No. 12 THE DIVISION DIRECTS MCC TO COMPLETE THE INSTALLATION OF THE SUBSIDENCE MONITORING NETWORK PRIOR TO THE INITIATION OF EXTRACTION OF COAL WITHIN THE PANEL DESIGNATED IN APPENDIX A TO THE NOVEMBER 1984 PERMIT REVISION APPLICATION ENTITLED “APPLICATION TO REVISE THE MINING AND RECLAMATION PLAN FOR THE MT GUNNISON NO. 1 UNDERGROUND MINE.” THIS MONITORING NETWORK IS