2010-08-13_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/13/2010
• Doc Name: 2nd Qtr 2010 Hydrological Report, Whirlwind Mine
• From: ENERGY FUELS RESOURCES
• To: DRMS
• Email Name: GRM
• Email Name: DB2
• Media Type: D
• Archive: No

Whirlwind Mine Water
Metals (mg/L) (i) (continued) Radionuclides (pCi1L) (i)

L Gross Gross Ra-226
Sample Information Fe Pb Mn Hg Mo Ni Se Ag TI U V Zn
B Cd Cr Cu U
alpha Ra-226 Ra-228
Beta Ra-228
uIL r .. I
WW-1, EFRC, 9/11/06 0.04 <0.0001 <0.001 <0.001 0.07 <0.001 0.025 <0.00001 0.005 0.040 <0.0001 0.098 ! <0.01 0.06 66.3 4.6
Whirlwind. EFRC,10l24/06 <0.01 <0.01 1.07 <0.005 0.03 <0.1 <0.05 0.016 0.189 <0.1 <0.01 128 - 9.9
WW Pool, EFRC,1/17/07 0.1 <0.01 <0.05 <0.01 0.09 <0.05 <0.01 <0.001 <0.1 <0.05 0.030 <0.01 <0.1 0.130 <0.1 <0.01 88.0 92.3 28.6 3.2 2.0 5.2
Whirlwind Pool, EFRC, 4/27/07 0.1 <0.01 <0.05 <0.01 0.05 <0.05 <0.01 <0.001 <0.1 <0.05 0.022 <0.01 <0.001 0.161 <0.1 <0.01 109 101 6.9 <1.0 <7.9
WW Sump, EFRC, 3/10/08 0.2 <0.01 0.08 011 0.93 <0.1 <0.05 0.024 0.210 0.6 ! 0.26 142 40.1 1.4 41.5
WW Sump, EFRC, 6/19/08 0.2 <0.01 <0.05 <0.05 0.09 <0.1 <0.05 0,020 0.104 <0.1 0.05 70.4 2.1 <1.2 <3.3
WW Sump, EFRC, 9/S/08* 0.1 <0.01 <0.05 <0.05 0.03 <0.1 <0.05 0.030 0,463 0,3 0.18 313 ` 16 <1.3 <17
WW Sump, EFRC, 12116108
0.015
WW Decline, EFRC, 4121/10 0.017 5.3 <1.2 <6.5
Whirlwind Decline (Brushy Basin
rormatwn
Whirlwind Seep, EFRC, 513!07
<0.01
<0.01 0.08 <0.05
<0.01 <0.1 <0.05 : 0.023 0.0828<0.1
<0.01
55.48 6.5 0.9 7.4
"Upper" Whirlwind Sump, <0.01 <0.01 0.55 <0.05 <0.01 <0.1 <0.05 10.040 0.109 <0.1 <0.01 73.0
EFRC, 513/07

v Ground Water, Domestic 0.005 0.1 1 0.3 0.05 0.05 0.002 0.035 0.1 0.05 0.05 0.002 0.03 5 20 15(a) 5(c) 5(c) 5
Ground Water, Agriculture 0.75 0.01 0.1 0.2 5 0.1 0.2 0.01 0.2 0.02 0.1 2 b 5
Surface Water, Stream e, 0.75 dis 0.010 0.100 0.200 0.3 dis 0.100 0.200 0.200 0.200 d 2 5(c) 5(c)
Surface Water, Domestic 0.005 0.05 1.0 0.3 0.05 0.05 0.002 0.1 0.05 0.1 0.0005 0.03 5 20 5(c) 5(c) 5
Surface Water, Agriculture 0.75 0.01 0.1 0.2 0.1 0.2 0.2 0.02 2
EPA Water Standards (h)
Maximum 4 1.0 010 dis
tot'
3 dis,
Average 2 0.5 10 tot
Notes:
1. Water standards are provided for reference only. These standards do not apply to the mine water unless it is discharged or used for drinking water, irrigation, or other regulated
uses.
2. Concentrations or activity levels above a state or federal standard are shaded for reference purposes. Shading indicates that the measured level is elevated compared to certain standards
of water use.
3. Metal and radionuclide levels are reported as total recoverable.
* Nitrate sample recollected on 9/18/08 due to hold time exceedance on 9/8/08 sample
Table 1 Water Quality Data
Whirlwind Mine Water
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