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Homestake - Pitch Reclamation Project <br />Page 2 <br />remove the silt in the casing. This was a problem again in 2010 and required flushing in August. <br />The silt problem in IC10300 is persistent and became a problem again in November, resulting in <br />some of the 2010 readings being unreliable. In 2011, we plan to pressure wash the problem <br />piezometers again to remove some of the silt built up in the piezometers over the past 20 years. If <br />this continues to be a problem we will evaluate replacement of the piezometers. <br />If you have questions, please feel free to contact me in the Grants NM office (505) 287-4456 x25 or <br />via cell phone at (505) 400-2794. <br />Sincerely, <br />i? <br />Alan D. Cox <br />Manager - Pitch Reclamation Project <br />cc: Rocky Chase - Barrick Management Corp. <br />Dale Davis - Homestake Mining Company-Sargents <br />Phillip De Dycker - ARCADIS-US, Inc.