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WHIRLWIND MINE,PERMIT NO.M-2007-044 <br /> SECOND QUARTER 2023 HYDROLOGICAL REPORT <br /> Attachment 5.PR Spring <br /> Dissolved peci isOxygen- <br /> Monitoring Sampled Inflow Rate Field pH Temperature Oxygen Conductance Reduction <br /> Date (Y/N) ( pm) (s.u.) (deg.C) (m /L) (US/cm) Potential(mV) Comments <br /> 3/10/2008 Yes 4 to 5 8.1 8.6 NM NM NM Sunny,Ave.of 1 foot snowpack,see Table 2 <br /> 6/19/2008 Yes 4.7 790 138 9.95 762 140 Sunny, Dry,see Table 2 <br /> 9/8/2008 Yes 41 8.36 13.4 8.39 883 166 Sunny, Dry,see Table 2 <br /> 12/15/2008 Yes 45 831 91 820 790 -35 Overcast,4"snowpack,see Table 2 <br /> 2/10/2009 Yes 45 668 9.2 7.27 923 90 Sunny,Cold, 1-2"snowpack,see Table 2 <br /> 4/20/2009 Yes 45 824 123 8.45 898 195 Sunny, Dry,see Table 2 <br /> 8/11/2009 No 4.7 848 13.9 8.25 889 133 Sunny, Hot, Dry <br /> 12/1/2009 No 1 5 9.15 86 11.54 881 116 Flow restricted by vegetation <br /> 6/2/2010 Yes 2.3 852 13.2 2.27 880 172 Flow restricted by vegetation,see Table 2 <br /> 7/28/2010 No 52 8.44 134 804 880 99 Sunny, Dry,Vegetation removed <br /> 11/4/2010 No 51 847 10.1 8.51 856 157 Sunny, Dry <br /> 4/18/2011 No 43 8.46 100 940 822 NM' Make-up for missed 1Q11 monitoring,Sunny,warm,clear skies <br /> 5/24/2011 Yes 48 860 108 9.09 858 35 Lt showers,warm,see Table 2 <br /> 8/15/2011 No 42 8.43 12.1 686 871 225 Partly cloudy,warm <br /> 10/25/2011 No 42 838 11 7 7.14 844 214 Overcast, light rain <br /> 3/28/2012 No 4.3 842 10.6 6.99 854 199 Dry and calm <br /> 5/30/2012 Yes 4.5 840 11 5 7.57 901 NM ORP Probe Broken <br /> 8/7/2012 No 40 832 138 6.97 869 223 Clear Water In tank <br /> 11/14/2012 No NM 7.56 116 45 7% 1194 964 Looks good enough to drink <br /> 3/18/2013 No 3.8 813 105 42.6% 794 219.8 <br /> 6/4/2013 Yes 39 815 11.7 83 5% 844 261.2 water was clear <br /> 8/14/2013 N/A N/A N/A N/A N/A N/A N/A field notes were lost <br /> 11/12/2013 No 21 7.36 10.9 708 767 85.9 <br /> Q1 2014 No NM NM NM NM NM NM Inaccessible due to county road conditions <br /> 6/17/2014 Yes 2.0 77 125 4.4 878.0 108.6 <br /> 9/9/2014 No 14 77 13.3 4.9 873.5 273 <br /> 11/13/2014 No 1.5 66 10.0 4.7 1219.0 272 <br /> 3/31/2015 No 1.6 70 100 5.0 11000 270 <br /> 5/29/2015 No 1.5 76 121 8.0 859.2 301 <br /> 8/5/2015 Yes 1.0 76 122 2.4 9220 381 <br /> 11/9/2015 No 0.5 76 108 5.0 862.8 341 <br /> 3/31/2016 No 1.5 7.43 961 1.99 839.9 302 <br /> 6/1/2016 Yes 0.6 649 12.42 0.91 867.1 464 <br /> 8/3/2016 No 047 743 16.14 8.59 894.5 276 <br /> 10/12/2016 No 010 708 13.92 859 861.9 287 <br /> 3/24/2017 No N/A 6.99 1202 920 785.4 400 Could not get flow rate due to pipe being clogged with roots <br /> 6/7/2017 Yes 1.0 725 1431 7.18 803.2 284 Flow rate was reduced due to pipe being clogged with roots. <br /> 9/8/2017 No 48 691 1396 7.34 838.3 1 275 Cleaned out discharge line Flow rate has improved <br /> 10/20/2017 No 6.0 588 11 33 8.30 8120 192 <br /> 4 <br />