2023-10-31_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 10/31/2023
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc
• To: DRMS
• Annual Report Year: 2023
• Report Quarter_Month: 3
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

WHIRLWIND MINE,PERMIT NO.M-2007-044
THIRD QUARTER 2023 HYDROLOGICAL REPORT
Attachment 5.PR Spring
Dissolved peci isOxygen-
Monitoring Sampled Inflow Rate Field pH Temperature Oxygen Conductance Reduction
Date (Y/N) ( pm) (s.u.) (deg.C) (m /L) (US/cm) Potential(mV) Comments
3/10/2008 Yes 4 to 5 8.1 8.6 NM NM NM Sunny,Ave. of 1 foot snowpack,see Table 2
6/19/2008 Yes 47 7.90 138 9.95 762 140 Sunny, Dry,see Table 2
9/8/2008 1 Yes 4.1 8.36 13.4 8.39 883 166 Sunny, Dry, see Table 2
12/15/2008 Yes 45 831 91 820 790 -35 Overcast,4"snowpack,see Table 2
2/10/2009 Yes 4.5 6.68 9.2 7.27 923 90 Sunny,Cold, 1-2"snowpack,see Table 2
4/20/2009 Yes 4.5 8.24 12.3 8.45 898 195 Sunny, Dry,see Table 2
8/11/2009 No 4.7 8.48 139 825 889 133 Sunny, Hot, Dry
12/1/2009 No 1.5 9.15 8.6 11.54 881 116 Flow restricted by vegetation
6/2/2010 Yes 2.3 8.52 132 227 880 172 Flow restricted by vegetation,see Table 2
7/28/2010 No 5.2 8.44 13.4 8.04 880 99 Sunny, Dry,Vegetation removed
11/4/2010 No 5.1 8.47 101 851 856 157 Sunny, Dry
4/18/2011 No 43 8.46 100 940 822 NM' Make-up for missed 1Q11 monitoring,Sunny,warm,clear skies
5/24/2011 Yes 4.8 8.60 108 909 858 35 Lt showers,warm,see Table 2
8/15/2011 No 4.2 8.43 121 6.86 871 225 Partly cloudy,warm
10/25/2011 No 42 838 11 7 7.14 844 214 Overcast, light rain
3/28/2012 No 4.3 8.42 10.6 6.99 854 199 Dry and calm
5/30/2012 Yes 45 840 11 5 7.57 901 NM ORP Probe Broken
8/7/2012 No 40 832 138 6.97 869 223 Clear Water In tank
11/14/2012 No NM 7.56 11.6 45.7% 1194 96.4 Looks good enough to drink
3/18/2013 No 38 813 10.5 42.6% 794 219.8
6/4/2013 Yes 3.9 8.15 11.7 83.5% 844 261.2 water was clear
8/14/2013 N/A N/A N/A N/A N/A N/A N/A field notes were lost
11/12/2013 No 2.1 736 109 708 767 859
Q1 2014 No NM NM NM NM NM NM Inaccessible due to county road conditions
6/17/2014 Yes 2.0 7.7 125 4.4 878.0 108.6
9/9/2014 No 1.4 7.7 13.3 4.9 873.5 273
11/13/2014 No 1 5 66 100 47 1219.0 272
3/31/2015 No 16 70 100 50 1100.0 270
5/29/2015 No 1.5 7.6 12.1 8.0 859.2 301
8/5/2015 Yes 1 0 7.6 122 24 9220 381
11/9/2015 No 0.5 7.6 108 5.0 8628 341
3/31/2016 No 1 5 7.43 961 1 99 8399 302
6/1/2016 Yes 0.6 6.49 1242 0.91 867.1 464
8/3/2016 No 0.47 743 1614 8.59 8945 276
10/12/2016 No 0.10 7.08 13.92 8.59 861.9 287
3/24/2017 No N/A 699 1202 9.20 7854 400 Could not get flow rate due to pipe being clogged with roots.
6/7/2017 Yes 1.0 725 14.31 7.18 803.2 284 Flow rate was reduced due to pipe being clogged with roots.
9/8/2017 No 4.8 691 13.96 734 838.3 275 Cleaned out discharge line. Flow rate has improved.
10/20/2017 No 60 588 11.33 830 812.0 192