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Battle Mountain Resources Inc. <br />San Luis Project <br />CMLRB Permit No. M-88-112 <br />June 2003 Monthly Report <br />Page 2 <br />Depths to water were collected for the tailing impoundment main embankment <br />piezometers, the West Pit and tailing embankment monitoring wells on June 29`h as <br />represented on the attached field tog report copies. The June 29`h tailing impoundment <br />piezometer measurements identified these installations were either dry or contained less <br />than 12 inches of water as illustrated in Table 2. Tables 1 and 2 below identify the depth <br />to water measurements collected for each of the site monitoring wells, piezome[ers and <br />lysimeters as required by the terms and conditions of the TR-15 QA/QC plan. <br />Implementation of the TR-32 depth of water monitoring will be initiated July ls` <br />The tailing impoundment collection pond underdrain flow was pumped internuttently <br />during the month to minimize the collection pond level. The leak detection system was <br />measured on June 29`h. The June collection pond underdrain flow average was 44.62 <br />gpm and a total of 570 gallons of water was excavated from the leak detection system <br />yielding a monthly average of 19.65 gpad. <br />During June, the West Pit water treatment plant operated efficiently discharging a total of <br />10,441,900 gallons (32.05 acre-feet) of water to Rito Seco Creek, a total of 978,300 <br />gallons (3.00 acre-feet) of water was transferred from the water treatment plant to the <br />tailing impoundment, and seepage along Rito Seco Creek remained dry. <br />Table 1-June 2003 Ground Water Monitoring Well and Lysimeter Depth to Water <br />Measurements <br />Monitorin Site Date De th to Water (feet) <br />M-1 6/30/03 74.11 <br />M-10 6/30/03 25.68 <br />M-11 6/30/03 36.39 <br />M-11R 6/30/03 44.44 <br />M-16 6/30/03 22.39 <br />M-17 6/30/03 32.65 <br />M-18 6/30/03 27.52 <br />M-19 6130/03 24.62 <br />M-20 6/30/03 25.75 <br />M-21 6/30/03 18.43 <br />M-22 6/30/03 16.84 <br />M-23 6/30/03 44.87 <br />M-24 6/30/03 26.54 <br />M-25 6/30/03 D <br />M-26 6/30/03 17.37 <br />M-27 6/30/03 Dr <br />