2024-04-30_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 4/30/2024
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc.
• To: DRMS
• Annual Report Year: 2024
• Report Quarter_Month: 1
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Table 6 Whirlwind Mine Waste Rock
Whirlwind Mine Waste Rock Samples
Sample IDI WW 04 I WW 05 I WW 06 f WW WR I 2022 Whirlwind WR-Comp. I2023 Whirlwind WR-Comp.
SYNTHETIC PRECIPITATION LEACHING PROCEDURE(SPLP)ANALYSES(DISSOLVED)
SPLP Extractable Physical Properties
TDS mg/L 52 40 52 30 830 910
pH s.u. 10.1 10.2 10.1 9.87 9.4 9.71
Hardness mg/L 17.5 17 10.7 13 18 86.3
Alkalinity(Total) mg/L 34 37 36 35 89 152
Conductance pS/cm 83.5 87.9 92.6 96 212 402
SPLP Extractable Major Ions
Sodium mg/L 10 8.6 11.2 12.3 42.0 88.6
Calcium mg/L 5.2 5.3 3.0 3.4 2.0 9.58
Magnesium mg/L 1.1 0.9 0.8 1.0 3.0 15.2
Potassium mg/L <0.5 <0.5 2.6 4.0 7.0 25.6
Chloride mg/L <1 <1 <1 2 13 22.8
Flouride mg/L <0.1 <0.1 0.1 0.1 0.2 0.418
Nitrate mg/L <0.1 <0.1 <0.1 1.2 <0.1 1.65
Nitrite mg/L <0.1 <0.1 <0.1 <0.1 0.3 <0.05
Phosphorous mg/L <0.1 <0.1 <0.1 <0.1 0.4 0.562
Bicarbonate as HCO3 mg/L 24 25 24 23 79 101
Silica mg/L 2.6 2.8 3.3 4.7 94.5 48.7
Sulfate mg/L 4 2 3 6 4 6.38
SPLP Extractable Metals
Aluminum mg/L 0.2 0.2 0.2 0.7 14.2 61.9
Antimony mg/L <0.001 <0.001 <0.001 <0.001 <0.005 <0.005
Arsenic mg/L 0.033 0.002 0.026 0.040 0.014 0.019
Barium mg/L <0.1 0.2 <0.1 <0.1 <0.1 <0.1
Beryllium mg/L <0.001 <0.001 <0.001 <0.001 <0.001 <0.002
Boron mg/L <0.1 <0.1 <0.1 <0.1 0.1 0.54
Cadmium mg/L <0.002 <0.002 <0.001 <0.001 <0.001 <0.001
Chromium mg/L <0.05 <0.05 <0.05 <0.05 <0.01 0.0196
Copper mg/L <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Iron mg/L 0.07 0.05 0.11 0.32 4.93 21.1
Lead mg/L <0.001 <0.001 <0.001 0.002 0.001 0.00137
Manganese mg/L <0.01 <0.01 <0.01 <0.01 0.02 0.0718
Mercury mg/L <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Molybdenum mg/L <0.1 <0.1 <0.1 <0.1 <0.02 <0.02
Nickel mg/L <0.05 <0.05 <0.05 <0.05 <0.01 0.0406
Selenium mg/L 0.014 <0.004 <0.004 0.012 0.007 0.0151
Silver mg/L <0,01 <0.01 <0.01 <0.01 <0.003 <0.003
Thallium mg/L <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Uranium mg/L <0.0004 <0.0004 <0.0004 0.0066 0.0005 0.00323
Vanadium mg/L <0.1 <0.1 <0.1 <0.1 <0.02 0.0397
Zinc mg/L 0.05 0.02 0.02 0.01 <0.02 0.0628
SPLP Extractable Radionuclides
Uranium pCi/L <0.3 <0.3 <0.3 4.5 0.3 0.2
Gross Alpha pCi/L 5.3 2.4 2.6 6.7 4.2 7.3
Gross Beta pCi/L 6.4 <2.0 4.7 <5.5 4.2 8,5
Radium-226 pCi/L <0.2 <0.2 <0.2 0.20 <2 2.2
Radium-228 pCi/L <1.0 <1.0 <1.0 <1.4 <2 <1
Radium-226+-228 pCi/L <1.2 <1.2 <1.2 <1.6 <4 <3.2
Notes:
1.3Q08-4Q09 sample was a composite of waste rock grab samples collected on
11/4/08,3/5/09,6/19/09 and 9/8/09.
*-Lab reporting delay,will update in the future
-Not sampled
Table 6 Total and SPLP Data
Whirlwind Mine Waste Rock
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