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2.05.6(6) <br /> <br />C <br />Subsidence Monitoring <br />Monument Location Frequency Purpose <br />Color aerial USDA-FS 5 Year intervals To monitor the topographic surface, <br />photographs Managed Surface beginning in 2001 soil and vegetation through <br /> until two years interpretation of color aerial <br /> after mining. photographs <br /> <br />Visual Known historic Twice per year, Determine if mining has rejuvenated <br /> and modern typically June and or created new landslides. <br /> landslides within November. <br /> the permit and <br /> adjacent area. <br /> <br />Visual Sheep Corral Within 3 months Monitor for surface fractures that may <br /> Drainage after the B-8 cause interruption of surface flows, <br /> bleeder entries damage stock ponds or create large <br /> are developed, fractures that will need to be mitigated. <br /> and on a quarterly <br /> basis thereafter <br /> during mining of <br /> panels B-8 and B- <br /> 9, and for six <br /> months post <br /> mining. <br /> <br />Panel B-11 eight At the edge of Quarterly and Separate confirmation of the angle of <br />monuments on panel B-11 more frequently draw close to the Bruce Park Dam. <br />one line to capture the <br />an le of draw. <br /> <br />All other Over mining area At the discretion To develop subsidence data to <br />monuments of the Operator support future mine plan expansions. <br />PR-11 <br />2.05 - 126 - <br />11 /08 <br />IZ~)q/a 8 <br />