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 6.Monitoring Well W-1
Dissolved SpecificOxygen-
Monitoring Sampled Water Level Field pH Temperature Oxygen Conductance Reduction
Date Y/N ft BTOC s.u. (deg.C m /L or% (US/CM) Potential mV Comments
10/21/2008 Yes 73.22 7.96 10.5 0.95 1543 124 Sunny,Dry,see Table 3
12/16/2008 Yes 74.44 7.73 99 1.47 1329 187 Overcast,4"snow,see Table 3
2/10/2009 Yes 74.73 782 10.1 093 1251 5 Sunny,Cold, 1-2"snow pack,see Table 3
4/20/2009 Yes 75.00 1 7.34 10.9 013 1209 80 Sunny,Dry,see Table 3
6/24/2009 Yes 74.96 7.63 10.9 -- 1157 -- Raining,cool,see Table 3
9/11/2009 Yes 74.84 791 11.3 023 1219 -75 Sunny,dry,see Table 3
12/10/2009 Yes 74.69 766 9.8 1.65 1182 80 Cold,overcast,see Table 3
2/4/2010 Yes 74.40 7.01 10.7 0.61 1240 -74 Cold,clear skies,3 ft of snow,see Table 3
6/7/2010 Yes 7398 7.73 12.2 0.25 1239 -111 Hot,clear skies,dry,see Table 3
7/28/2010 No 73.48 NM NM NM NM NM Water level measurement only
11/4/2010 No 74.00 NM NM NM NM NM Water level measurement only
4/18/2011 No 73.94 NM NM NM NM NM Make-up for missed 1 Q1 1 monitoring
5/24/2011 Yes 73.77 7.85 11.0 Oil 1210 10 Ptly cloudy,warm,see Table 3
8/16/2011 No 73.72 NM NM NM NM NM Water level measurement only
10/25/2011 No 73.94 NM NM NM NM NM Water level measurement only,Overcast,light rain
3/28/2012 No 73.98 NM NM NM NM NM Water level measurement only,weather dry and calm
5/30/2012 Yes 73.98 7.72 10.9 1.61 1252 NM ORP Probe Broken
8/7/2012 No 74.00 NM NM NM NM NM
11/14/2012 No 74.05 NM NM NM NM NM
3/18/2013 No 73.95 NM NM NM NM NM
6/17/2013 Yes 74.02 7.31 11.2 37.6% 1216 54.4 First bail the water was clear,but was muddy for the remainder of
the purge.
8/14/2013 N/A N/A N/A N/A N/A N/A N/A Field notes were lost.
11/8/2013 No 73.89 638 10.6 0.206 1186 50.5
Qi 2014 No NM NM NM NM NM NM Inaccessible due to county road conditions.
6/18/2014 Yes 73.3 642 11.3 1 7 1349 75
9/9/2014 No 74.2 6.04 14.1 14 1386 317
11/13/2014 No 74.3 6.61 11.0 46 1219 272
3/31/2015 No 74.4 6.50 11.4 50 1340 282
5/29/2015 No 74.4 6.74 12.5 30 1438 328
8/5/2015 Yes 74.5 7.40 12.2 2.5 1484 330
11/9/2015 No 74.4 7.40 11.9 3.5 1250 326
3/31/2016 No 74.4 7.13 11.05 1.7 1539 425
6/1/2016 Yes 74.4 7.26 12.04 34 1432 421
8/3/2016 No 74.6 6.51 1594 2.8 1463 301
10/12/2016 No 74.6 6.20 1458 55 1507 290
3/24/2017 No 74.7 6.15 12.75 4.2 1332 504
6/7/2017 Yes 74.7 7.22 1266 6.6 1502 375
9/8/2017 No 74.5 6.95 15.25 50 1438 290
10/20/2017 No 74.5 6.27 11.33 88 1376 80.3
3/22/2018 No 74.7 7.22 10.88 48 1048 290
6/20/2018 Yes 74.7 745 11 46 6.5 1014 -7.7
9/7/2018 No 74.7 7.19 1165 4.5 962 -349.9
12/14/2018 No 74.7 5.99 1101 NM 1366 293
Qi 2019 No NM NM NM NM NM NM Inaccessible due to county road conditions.
6/25/2019 Yes 74.6 7.53 11.04 70 1265 176.6
9/13/2019 No 74.7 7.03 1120 2.6 1376 215
11/8/2019 No 74.8 7.61 11.93 21 1475 261
3/27/2020 No 74.7 7.25 1006 2.7 1350 115
6/24/2020 Yes 1 749 7.63 11 12 37 1310 -250
9/11/2020 No 1 75.0 7.72 1049 7.1 1380 54
NM=Not Measured