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70 <br />60 <br />50 <br />40 <br />30 <br />20 <br />10— <br />-10 <br />-20 <br />-30-1 <br />GALENA Version 5 01 <br />— <br />— <br />— <br />— <br />— <br />— <br />— <br />Overburden <br />cP <br />Az <br />Sand and Gravel ��s <br />9r <br />y <br />i <br />i <br />77 <br />i <br />i <br />7 / <br />7 <br />_ <br />Weathered Glaystone <br />Intact Bedrock <br />— <br />— <br />1 I I I <br />I <br />— <br />— <br />I I — <br />Analysis: 1 <br />Single Stability Analysis <br />Method: Bishop Simplified <br />Surface: Circular <br />Results <br />Factor of Safety: 0.98 <br />-20 0 20 40 60 <br />80 <br />100 120 <br />Project: Permit <br />No. M-1987-049, Ready Mixed Concrete Co., Bromley Lakes Pit <br />McCanne Ditch <br />files\galena model files\Bromley Lakes Pit gmf <br />Near <br />File: C \acs <br />Office of Surface Mining <br />