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Homestake Mining Company 2018 Geotechnical Observations <br /> Pitch Reclamation Project Indian and Tie Camp Rock Dumps <br /> ' injection into the piezometers at the 10300 level. With exception of IC-10300R, these <br /> piezometers are minimally discussed in this report because they were only measured during <br /> operation of the Phosphate treatment system and therefore do not represent steady-state <br /> ' conditions. <br /> To further monitor slope stability, three inclinometers were monitored in 2018 at the Indian Rock <br /> Dump, along the drainage ditch located approximately halfway between the base of the Indian <br /> Rock Dump and the 10300-bench (Figure 2). The data did not indicate any slope movement in <br /> this area during 2018 (BGC 2019) <br /> ' Please feel free to contact me in the Sargents Colorado office (970) 641-4541 or via cell phone <br /> at(505) 252-9615 if you have any questions. <br /> Sincerely, <br /> Dave Wyko � <br /> ' Pitch Site Manager <br /> cc: Clark Burton—Homestake Mining Company <br /> Walter Baumann—Homestake Mining Company <br /> Phillip DeDycker—Arcadis, U.S., Inc. <br /> ' Pitch Reclamation Project Page 2 <br /> 2018 Annual Geotechnical Report <br /> M-1977-004HR <br />