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WHIRLWIND MINE, PERMIT NO. M-2007-044 <br />FOURTH QUARTER 2010 HYDROLOGICAL REPORT <br />6. Monitoring Well W-1 <br /> <br /> <br />Sample Date <br />10/21/2008 <br />12/16/2008 <br />Sampled <br />(YIN) <br />Yes <br />Yes <br />Water Level <br />(ft BTOC) <br />73.22 <br />74.44 <br />Field pH <br />(s.u.) <br />7.96 <br />7.73 <br />Temperature <br />(deg. C) <br />10.5 <br />9.9 Dissolved <br />Oxygen <br />(mg/L) <br />0.95 <br />1.47 Specific <br />Conductance <br />(US/cm) <br />1543 <br />1329 Oxygen- <br />Reduction <br />Potential (mV) <br />124 <br />187 <br /> <br />Comments <br />Sunny, Dry, see attached tables <br />Overcast, 4" snowpack, see attached <br />tables <br />2/10/2009 Yes 74.73 7.82 10.1 0.93 1251 5 Sunny, Cold, 1-2" snowpack, see <br />attached tables <br />4/20/2009 Yes 75.00 7.34 10.9 0.13 1209 80 Sunny, Dry, see attached tables <br />6/24/2009 Yes 74.96 7.63 10.9 -- 1157 - Raining, cool, see attached tables <br />9/11/2009 Yes 74.84 7.91 11.3 0.23 1219 -75 Sunny, dry, see attached tables <br />12/1012009 Yes 74.69 7.66 9.8 1.65 1182 80 Cold, overcast, some snow, see <br />attached tables <br />2/4/2010 Yes 74.40 7.01 10.7 0.61 1240 -74 Cold, clear skies, 3 ft of snow <br />6/7/2010 Yes 73.98 7.73 12.2 0.25 1239 -111 Hot, clear skies, dry <br />7/28/2010 No 73.48 NM NM NM NM NM Water level measurement only <br />11/4/2010 No 74.00 NM NM NM NM NM Water level measurement only <br />4/18/2011 No 73.94 NM NM NM N. NM Make-up for missed 1Q11 monitoring <br />7. Lumsden Canyon Seep <br /> Dissolved -Specific Oxygen- <br /> Sampled Inflow Rate Field pH Temperature Oxygen Conductance Reduction <br />Sample Date (Y/N) (gpm) (s.u.) (deg. C) (mg/L) (US/cm) Potential (mV) Comments <br />6/19/2008 Yes NM 7.18 18.4 5.56 825 214 Sunny, Dry <br />12/4/2008 Yes NM 7.47 11.6 6.69 985 99.5 Overcast, Cold, Dry