2023-04-26_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 4/26/2023
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc
• To: DRMS
• Annual Report Year: 2023
• Report Quarter_Month: 1
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Table 1 Whirlwind Mine Water
Metals(mg/L)(i) (continued) Radionuclides (pCi/L)(i)
Gross Gross Ra-226
Sample Information B Cd Cr Cu Fe Pb Mn Hg Mo Ni Se Ag TI U V Zn U alpha Beta Ra-226 Ra-228 Ra-228
Whirlwind Mine
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, 10/24/06 <0.01 <0.01 1.07 <0.005 0.03 <0.1 <0.05 0.016 0.189 <0.1 <0.01 128 9.7
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 0.11 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 1 <0.01 <0.05 <0.05 0.09 1 <0.1 <0.05 0.020 0.104 <0.1 0.05 70.4 2.1 <1.2 <3.3
WW Sump, EFRC, 9/8/08* 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, 12/16/08 0.015
WW Decline, EFRC,4/21/10 0.017 5.3 <1.2 <6.5
WW Decline, EFRC,2/7/11 0.029 5.1 <0.87 <6.0
WW Decline, EFRC, 11/9/11 <0.1 <0.001 <0.01 0.15 <0.01 0.012 <0.01 0.031 0.211 0.014 0.134 143 5.0 0.9 5.9
Whirlwind Decline(Brushy Basin
Formation
Whirlwind Seep, EFRC, 5/3/07 <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 0.040 0.109 <0.1 <0.01 73.0
EFRC, 5/3/07
Colorado Water Standards
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 0.017 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 I 0.1 0.2 0.2 0.02 2
EPA Water Standards(h)
Maximum 4 1.0 10 dis,
30 tot
Average 2 0.5 3 dis,
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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