2024-01-25_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 1/25/2024
• Doc Name: Hydrology Report
• From: Energy Fuels Resources Inc
• To: DRMS
• Annual Report Year: 2023
• Report Quarter_Month: 4
• Email Name: ACY
• Email Name: THM
• Media Type: D
• Archive: No

Table 6 Whirlwind Mine Waste Rock
Whirlwind Mine Waste Rock Samples
Sample ID WW 04 WW 05 WW 06 WW WR I2022 Whirlwind WR-Comp.
SYNTHETIC PRECIPITATION LEACHING PROCEDURE(SPLP)ANALYSES(DISSOLVED)
SPLP Extractable Physical Properties
TDS mg/L 52 40 52 30 830
pH s.u. 10.1 10 2 10.1 9 87 9.4
Hardness mg/L 17 5 17 10 7 13 18
Alkalinity(Total) mg/L 34 37 36 35 89
Conductance pS/cm 83.5 87.9 92.6 96 212
SPLP Extractable Major Ions
Sodium mg/L 10 8 6 11.2 12.3 42.0
Calcium mg/L 5.2 5.3 3.0 3.4 2.0
Magnesium mg/L 11 0.9 0.8 10 3.0
Potassium mg/L <0 5 <0.5 2.6 4 0 7 0
Chloride mg/L <1 <1 <1 2 13
Flouride mg/L <0.1 <0 1 0.1 0.1 0 2
Nitrate mg/L <0.1 <01 <01 1.2 <0.1
Nitrite mg/L <0.1 <0.1 <0.1 <0 1 0.3
Phosphorous mg/L <0.1 <0.1 <0.1 <0.1 0.4
Bicarbonate as HCO3 mg/L 24 25 24 23 79
Silica mg/L 2 6 2 8 3 3 4.7 94.5
Sulfate mg/L 4 2 3 6 4
SPLP Extractable Metals
Aluminum mg/L 0.2 0.2 0 2 0.7 14.2
Antimony mg/L <0 001 <0.001 <0.001 <0 001 <0.005
Arsenic mg/L 0.033 0 002 0.026 0.040 0.014
Barium mg/L <0 1 0.2 <0 1 <0 1 <0.1
Beryllium mg/L <0.001 <0.001 <0 001 <0.001 <0.001
Boron mg/L <0 1 <0.1 <0 1 <0.1 0.1
Cadmium mg/L <0.002 <0.002 <0 001 <0.001 <0.001
Chromium mg/L <0.05 <0.05 <0 05 <0 05 <0.01
Copper mg/L <0.01 <0.01 <0 01 <0.01 <0.01
Iron mg/L 0.07 0 05 0.11 0.32 4.93
Lead mg/L <0.001 <0.001 <0.001 0.002 0 001
Manganese mg/L <0.01 <0.01 <0.01 <0.01 0.02
Mercury mg/L <0.001 <0 001 <0.001 <0.001 <0 001
Molybdenum mg/L <0.1 <0 1 <0 1 <0.1 <0.02
Nickel mg/L <0.05 <0.05 <0 05 <0.05 <0.01
Selenium mg/L 0 014 <0.004 <0.004 0 012 0.007
Silver mg/L <0.01 <0.01 <0.01 <0.01 <0.003
Thallium mg/L <0.001 <0.001 <0 001 <0 001 <0.001
Uranium mg/L <0 0004 <0.0004 <0.0004 0.0066 0.0005
Uranium as U3O5 mg/L <0 0004 <0.0004 <0 0004 0.0077 **
Vanadium mg/L <0.1 <0.1 <0 1 <0.1 <0.02
Vanadium as V205 mg/L <0 2 <0.2 <0 2 <0.2 **
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Zinc mg/L 0.05 0.02 0 02 0.01 <0.02
SPLP Extractable Radionuclides
Uranium pCi/L <0.3 <0 3 <0.3 4.5 0 3
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Gross Alpha pCi/L 5.3 2 4 2.6 6.7 4.2
Gross Beta pCi/L 6 4 <2.0 4.7 <5.5 4 2
Radium-226 pCi/L <0.2 <0.2 <0.2 0.20 <2
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Radium-228 pCi/L <1.0 <1 0 <1.0 <1.4 <2
Radium-226+-228 pCi/L <1.2 <1.2 <1 2 <1.6 <4
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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.
**-Not sampled
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Table 6 Total and SPLP Data
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Whirlwind Mine Waste Rock
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