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Homestake 2011 Geotechnical Observations <br />Pitch Reclamation Project Indian Creek and Tie Camp Creek Waste Rock Dumps <br />occurred. However, there continues to be problems related to silt and corrosion in some <br />of the piezometers. Homestake will continue to evaluate the conditions of all <br />piezometers and remedy the buildup of silt in the casings, as possible. We will continue <br />to monitor and evaluate the cause and effect of seasonal spikes in the piezometric water <br />levels, and also observe any changes in surface features of the rock dumps. There <br />continues to be no indication of concern related to instability or foundation phreatic <br />surfaces in either the Indian Creek or Tie Camp Creek waste rock dumps. <br />Homestake Pitch Reclamation Project <br />2011 Annual Geotechnical Report <br />M- 1977 -004HR <br />Page 5 <br />December 19, 2011 <br />2011 AnnualGeotechnicalReportText _Final.doc <br />