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<br />Colorado Division of Minerals and Geology <br />October 13, 1997 <br />Page 2 <br />observations of the surface completions of these piezometers and measurements of water levels <br />and well depths with a water level meter, we believe that these piezometers are still intact and may <br />be useful as additional water level monitoring points for the purpose of determining ground water <br />gradients (if it can be shown they monitor the same potential surface). <br />Figure 2 is a schematic diagram showing how we propose to complete the two new piezometers <br />within the West Pit. As shown, the piezometers will be constructed with 2-inch diameter PVC, <br />and shall penetrate a minimum of 75 feet into saturated materials as identified during drilling, or <br />to the base of the backfill if there is less saturation. It is our understanding that Tuttle Mountain <br />Resources intends to install these piezometers within 4-6 weeks after DMG approves the well <br />locations. This assumes drilling rig availability and no weather-related delays. <br />Once the additional piezometers in the West Pit have been installed, BMRI will survey all <br />monitoring wells and piezometers to a common datum for elevation control. <br />If you have any questions regarding these proposed well locations, please feel free to give us a <br />call. <br />Yours truly, <br />Peter E. Barkmann <br />Project Hydrogeologist <br />PEB/pk <br />enclosures <br />lcc: Mr. Ron Zumwalt <br />Battle Mountain Resources, Inc. <br />P.O. Box 310 <br />San Luis, Colorado 81152 <br />lcc: Mr. Bill Lyle <br />Battle Mountain Gold <br />P.O. Box 1627 <br />Battle Mountain, Nevada 89820-1627 <br />