Laserfiche WebLink
Homestake 2016 Geotechnical Observations <br />Pitch Reclamation Project y _ Indian and Tie Camp Rock Dumps <br />Table 1: Monthlv Water Level Readings in Rock Dumo Piezometers <br />Piezometer No. <br />IC10630 <br />IC10600 <br />IC10525 <br />IC10370R* <br />IC10360 <br />IC10300R* <br />TC10375 <br />Collar Elevation 1 <br />10631.5 <br />10603.8 <br />10523.6 <br />10380,5 <br />10373,4 <br />10297.8 <br />10373.0 <br />116116 <br />201.81 <br />251.9 <br />229.3 <br />200.85 <br />225.9 <br />188.68 <br />170.12 <br />2116116 <br />201.82 <br />252.0 <br />229.3 <br />200.80 <br />226.4 <br />188.95 <br />170.24 <br />3114116 <br />201.30 <br />252.1 <br />229.4 <br />201.75 <br />227.7 <br />189.00 <br />165.23 <br />4115116 <br />201.16 <br />252.2 <br />228.0 <br />196.25 <br />228.1 <br />189.10 <br />16423 <br />5113116 <br />196.25 <br />244.1 <br />221.5 <br />195.52 <br />219.3 <br />183.50 <br />164.54 <br />6124116 <br />194.21 <br />249.6 <br />225.7 <br />195.66 <br />220.1 <br />181.89 <br />165.67 <br />716116 <br />196.30 <br />251.9 <br />226.8 <br />196.20 <br />220.5 <br />182.45 <br />166.32 <br />8116116 <br />197.62 <br />252.3 <br />227.9 <br />196.24 <br />220.7 <br />184.23 <br />167.22 <br />9120116 <br />198.36 <br />252.5 <br />228.3 <br />197.98 <br />221.9 <br />186.72 <br />168.00 <br />10/17/16 <br />199.26 <br />252.5 <br />228.7 <br />199.44 <br />222.6 <br />187.92 <br />168.65 <br />11/15/16 <br />201.34 <br />252.1 <br />228.5 <br />200.86 <br />223.4 <br />188.16 <br />170.12 <br />12/15/16 <br />201.90 <br />252.4 <br />228.8 <br />201.00 <br />223.8 <br />188.63 <br />169.10 <br />Average depth <br />from ground surface <br />199.30 <br />251.3 <br />227.8 <br />198.55 <br />223.4 <br />186.60 <br />167.50 <br />2015 Maximum <br />Differential feet <br />7.55 <br />8.70 <br />9.00 <br />6.09 <br />6.53 <br />6.96 <br />4.27 <br />2016 Maximum <br />Differential ffeeQ <br />7.61 <br />8.40 <br />7.90 <br />5.55 <br />8.80 <br />7.21 <br />6.01 <br />(votes: <br />Depth recorded in feet below ground surface (bgs) <br />Reading marked in iced data reflects the lowest water level and Creon the highest in the year <br />Piezometers 10370 and 10300 were replaced with piezometers 10370R and 1030OR in August 2011 (described in <br />Pitch Reclamation Project -Piezometer Replacement Field Report, Arcadis U.S., Inc , October 21, 2011). <br />Homestake Pitch Reclamation Project Page 6 <br />2016 Annual Geotechnical Report December 31, 2016 <br />M-1977-004HR 2016 AnnualGeotechnicalReportText_Final.doc <br />