2020-10-02_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/2/2020
• Doc Name: Hydrology Report
• From: Energy Fuels
• To: DRMS
• Annual Report Year: 2020
• Report Quarter_Month: 3
• Email Name: ACY
• Media Type: D
• Archive: No

WHIRLWIND MINE,PERMIT NO.M-2007-044
THIRD QUARTER 2020 HYDROLOGICAL REPORT
Attachment 5.PR Spring
Dissolved Specific Oxygen-
Monitoring Sampled Inflow Rate Field pH Temperature Oxygen Conductance Reduction
Date YM m 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 snow pack,see Table 2
6/19/2008 Yes 4.7 7.90 13.8 9.95 762 140 Sunny,Dry,see Table 2
9/8/2008 Yes 4.1 8.36 134 8.39 883 166 Sunny,Dry,see Table 2
12/15/2008 Yes 4.5 8.31 9.1 8.20 790 -35 Overcast,4"snow pack,see Table 2
2/10/2009 Yes 4.5 6.68 92 7.27 923 90 Sunny,Cold,1-2"snow pack,see Table 2
4/20/2009 Yes 4.5 8.24 123 8.45 898 195 Sunny,Dry,see Table 2
8/11/2009 No 4.7 8.48 13.9 8.25 889 133 Sunny,Hot,Dry
12/1/2009 No 1.5 9.15 8.6 1154 881 116 Flow restricted by vegetation
6/2/2010 Yes 23 8.52 13.2 2.27 880 172 Flow restricted by vegetation,see Table 2
7/28/2010 No 52 844 13.4 8.04 880 99 Sunny,Dry,Vegetation removed
11/4/2010 No 51 847 10.1 8.51 856 157 Sunny,Dry
4/18/2011 No 43 846 10.0 9.40 822 NM' Make-up for missed 1Q11 monitoring,Sunny,warm,clear skies
5/24/2011 Yes 48 860 10.8 9.09 858 35 Lt showers,warm,see Table 2
8/15/2011 No 42 843 12.1 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 4.3 842 10.6 6.99 854 199 Dry and calm
5/30/2012 Yes 4.5 8.40 11.5 7.57 901 NM ORP Probe Broken
8/7/2012 No 4.0 8.32 13.8 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 39 815 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 21 736 10.9 7.08 767 859
Q1 2014 No NM NM NM NM NM NM Inaccessible due to county road conditions
6/17/2014 Yes 2.0 7.7 12.5 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 6.6 10.0 4.7 1219.0 272
3/31/2015 No 1.6 7.0 10.0 5.0 11000 270
5/29/2015 No 1.5 7.6 121 1 8.0 859.2 301
8/5/2015 Yes 10 76 122 2.4 922.0 381
11/9/2015 No 05 7.6 10.8 5.0 862.8 341
3/31/2016 No 1 5 743 9.61 1.99 839.9 302
6/1/2016 Yes 0.6 6.49 12.42 091 867.1 464
8/3/2016 No 0.47 7.43 16.14 859 894.5 276
10/12/2016 No 0.10 7.08 13.92 8.59 861.9 287
3/24/2017 No N/A 6.99 1202 9.20 7854 400 Could not get flow rate due to pipe being clogged with roots.
6/7/2017 Yes 1.0 7.25 1431 7.18 803.2 284 Flow rate was reduced due to pipe being clogged with roots.
9/8/2017 No 4.8 6.91 1396 7.34 838.3 275 Cleaned out discharge line. Flow rate has improved.
10/20/2017 No 6.0 5.88 1133 8.30 812.0 192
3/22/2018 No 6.0 7.91 9.60 11.00 577.0 120
6/20/2018 Yes 5.0 7.82 1193 9.64 613.0 -4.7
9/7/2018 No 4.5 7.95 1 12.68 12.15 5880 1643
12/14/2018 No 4.5 6.83 6.02 '" 5570 337
Q1 2019 No NM NM NM NM NM NM Inaccessible due to county road conditions
6/25/2019 Yes 6.5 8.03 12.20 6.44 785.0 238
9/13/2019 No 4.2 7.88 12.59 9.27 812.0 295
11/8/2019 No 4.9 810 11.14 10.34 802.7 337
3/27/2020 No 2.5 810 9.19 10.70 7730 896
6/24/2020 Yes 4.5 7.98 11.49 988 754.0 413
9/11/2020 No 2.8 8.10 11.65 8.51 883.0 242
-ORP Probe broken during 4/18/11 Monitoring Event
-Meter malfunctioned during site visit-no measurements were taken
Note:PR Spring not accessible in February or March,2010 due to deep snow
NM=Not Measured