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-8- RIDER TO MINING PERMIT Permit Date: July 13, 1998 Permit No: C-81-010 The following additional stipulations form an integral part of the foregoing permit: Stipulation No. Description 10. THE DIVISION DIRECTS THE PERMITTEE TO MONITOR POST-MINING TOPOGRAPHY OF BACKFILLED AND REGRADED SURFACES OF THE DISTURBED AREA AT THE TRAPPER MINE. MONITORING FOR THIS PURPOSE SHALL CONSIST OF A CONTOUR MAP (CONTOUR INTERVAL NOT TO EXCEED 5 FEET) PRODUCED FROM AN ANNUAL SURVEY UTILIZING FIELD OR AEROPHOTOGRAMMETRIC TECHNIQUES ACCEPTABLE TO THE DIVISION. THE POST-MINING TOPOGRAPHIC MAPS SHALL BE SUBMITTED TO THE DIVISION FOR REVIEW AND APPROVAL ON AN ANNUAL BASIS, COMMENCING IN JANUARY 1984. 12. TRAPPER MINE WILL MONITOR THE QUALITY AND THE LEVEL OF WATER FOR THE AQUIFER OR WATER BEARING ZONE IN WHICH THE LUX WELL IS COMPLETED AND WHICH APPEARS TO BE AN AQUIFER WHICH TRAPPER IS NOT CURRENTLY MONITORING. TH[S MONITORING MAY BE DONE BY MEANS OF THE LL'X WELL ITSELF, IF THE OWNER IS AGREEABLE, OR BY MEANS OF A SEPARATE WELL. IF A SEPARATE WELL IS UTILIZED FOR THE MONITORING, IT SHALL BE COMPLETED IN THE EQUIVALENT ZONE OR AQUIFER 1N WHICH THE LUX WELL IS COMPLETED. IT SHALL BE LOCATED AT A POINT DIRECTLY UPDIP FROM THE LUX WELL WHERE THE ENTIRE ZONE OF THE LUX WELL CAN BE MONITORED AND IT SHALL BE AT A POINT WHERE WATER LEVELS MAY BE RECORDED AND WATER QUALITY SAMPLES REPRESENTATIVE OF THAT ZONE MAY BE RECOVERED. THIS SCHEDULE OF MONITORING SHALL BE QUARTERLY AND THE DATA RECORDED SHALL BE INCORPORATED AND INTERPRETED IN THE ANNUAL HYDROLOGIC REPORT FOR THE MINE. THE PARAMETERS APPEARING ON LIST B (P. 4-2410 OF THE PERMIT APPLICATION) SHALL BE RECORDED ON AN ANNUAL BASIS, STARTING WITH THE QUARTER IN WHICH THE MONITORING BEGINS. THE PARAMETERS APPEARING ON THE FOLLOWING LIST SHALL BE RECORDED DURING THE SUCCEEDING THREE QUARTERS OF THE MONITORING YEAR: