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WHIRLWIND MINE, PERMIT NO. M-2007-044 <br />FIRST QUARTER 2010 HYDROLOGICAL REPORT <br />5. PR Spring <br /> Dissolved Specific Oxygen- <br /> Sampled Inflow Rate Field pH Temperature Oxygen Conductance Reduction <br />Sample Date Y/N m s.u. (deg. C m /L uS/cm Potential mV Comments <br /> Sunny, Ave. of 1 foot snowpack, see <br />3/10/2008 Yes 4 to 5 8.1 8.6 NM NM NM attached tables <br />6/19/2008 Yes 4.7 7.90 13.8 9.95 762 140 Sunny, Dry, see attached tables <br />9/8/2008 Yes 4.1 8.36 13.4 8.39 883 166 Sunny, Dry, see attached tables <br /> Overcast, 4" snowpack, see attached <br />12/15/2008 Yes 4.5 8.31 9.1 8.20 790 -35 tables <br /> Sunny, Cold, 1-2" snowpack, see <br />2/10/2009 Yes 4.5 6.68 9.2 7.27 923 90 attached tables <br />4/20/2009 Yes 4.5 8.24 12.3 8.45 898 195 Sunny, Dry, see attached tables <br />8/11/2009 No 4.7 8.48 13.9 8.25 889 133 Sunny, Hot, Dry <br />12/1/2009 No 1.5 9.15 8.6 11.54 881 116 0 , clear sies <br />Note: PR Spring not accessible in February or March, 2010 due to deep snow <br />6. Monitoring Well W-1 <br /> Dissolved Specific Oxygen- <br /> Sampled Water Level Field pH Temperature Oxygen Conductance Reduction <br />Sample Date Y/N ft BTOC s.u. (deg. C m /L uS/cm Potential mV Comments <br />10/21/2008 Yes 73.22 7.96 10.5 0.95 1543 124 Sunny, Dry, see attached tables <br /> Overcast, 4" snowpack, see attached <br />12/16/2008 Yes 74.44 7.73 9.9 1.47 1329 187 tables <br /> Sunny, Cold, 1-2" snowpack, see <br />2/10/2009 Yes 74.73 7.82 10.1 0.93 1251 5 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 /> Cold, overcast, some snow, see <br />12/10/2009 Yes 74.69 7.66 9.8 1.65 1182 80 attached lab sheets and tables <br />2/4/2010 Yes 74.40 7.01 10.7 0.61 1240 -74 Cold, clear sies, 3 o snow