2010-02-15_HYDROLOGY - M2007044

• Permit No: M2007044
• IBM Index Class Name: Hydrology
• Doc Date: 2/15/2010
• Doc Name: Submittal of Jan. 2010 Discharge Monitoring Report
• From: Energy Fuels Resources Corp
• To: DRMS
• Media Type: D
• Archive: No

Whirlwind Water Sam l ng Data and Leach Test Results
Water Samples from Mine Sump Colorado Water Standards SPLP Tests of Ore Samples SPLP Tests of Waste Rock Samples
Sample I.D. GJL-2951 1299-001 0744-001 Ground Water Surface Water 129451 W1 129452 W2 12945 3 129 W4 129455 W5 129456 WW6
Date 9/11/2006 10/24/2006 1/17/2007 Domestic Water Agricultural Stream a Domestic Water Agriculture 1/18/2007 1/18/2007 1/18/2007 1/18/2007 1/18/2007 1/18/2007
Major Ions: units
Sodium m L 1 144 140 123 1 9.3 10.7 11.8 10 8.6 11.2
Calcium m L 13 12.4 9.2 5.1 16.1 8.8 5.2 5.3 3.0
Magnesium m L 6 4.8 5.0 1.2 2.8 2.3 1.1 0.9 0.8
Potassium m L 10.5 9 9.3 <0.5 <0.5 2.2 <0.5 <0.5 2.6
Chloride m L 29 20 17 250 250 <1 <1 <1 <1 <1 <1
Fluoride m L 0.39 0.6 0.3 4.0 2 2.0 <0.1 0.1 0.1 <0.1 <0.1 0.1
N as Nitrate+Nitrite m L 1.2 0.5 10.0 100 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
N as Nitrate m L 0.72 10.0 10.0 100 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
N as Nitrite m L 1.0 10 1.0 10 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
Phosphate m L 0.01
Phosphorus m L <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
Bicarbonate m L 365 314 29 43 41 24 25 24
Carbonate m L <1
Silica m L 8.6 3.5 3.8 4.4 2.6 2.8 3.3
Sulfate m L 19 36 28 250 250 250 3 33 15 4 2 3
Other:
Total Dissolved Solids m L 390 382 340 38 104 82 52 40 52
Total Suspended Solids m L 21.3
Hardness m L 57 43.8 17.8 51.6 31.2 17.5 17.0 10.7
Total Alkalinity m L 302 280 266 36 36 42 34 37 36
Ammonia m L <0.01
va �, a
H S.U. 7.50 8.30 6.5 to 8.5 6.5 to 8.5 6.5 to 9.0 5.0 to 9.0 '�,:` 11 1 ,,;,
Conductivity umhos/cm 708 595F 87.4 159 1251 83.51 87.9 92.6
Turbidity NTU 4.4
Metals Dissolved Total Dissolved Dissolved Dissolved Total
Aluminum m L 1.5 0.2 5 0.2 <0.1 0.2 0.2 0.2 0.2
Antimony m L <0.05 0.006 0.003 0.004 <0.001 <0.001 <0.001
Arsenic m L 0.015 0.023 0.027 0.05 0.1 0.100 0.1 f 01 0.033 0.002 0,.026
Barium m L 0.30 0.2 0.1 2.0 1.0 <0.1'1 <0.1 <0.1 I <0.1 0.2 <0.1
Beryllium m L <0.01 0.004 0.1 0.100 0.004 0.1 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Boron m L 0.04 0.1 0.75 0.75 dissolved 0.75 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1
Cadmium m L <0.0001 <0.01 <0.01 0.005 0.01 0.010 0.005 0.01 <0.002 <0.002 <0.002 <0.002 <0.002 <0.001
Chromium m L <0.001 <0.05 0.1 0.1 0.100 0.05 0.1 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
Copper m L <0.001 <0.01 <0.01 1 0.2 0.200 1.0 0.2 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Iron m L 0.07 1.07 0.09 0.3 5 0.3 dissolved 0.3 0.09 0.03 0.07 0.07 0.05 0.11
Lead m L <0.001 <0.05 <0.05 0.05 0.1 0.100 0.05 0.1 0.004 <0.001 0.001 <0.001 <0.001 <0.001
Manganese m L 0.025 0.03 <0.01 0.05 0.2 0.200 0.05 0.2 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Mercury m L <0.00001 <0.001 0.002 0.01 0.002 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Molybdenum m L 0.005 <0.1 <0.1 <0.1 0.3 0.8 <0.1 <0.1 <0.1
Nickel m L L <0.05 <0.05 0.1 0.2 0.200 0.1 0.2 4.05 <0.05 <0.05 <0.05 <0.05 <0.05
„, a
Selenium m L „•,t} 0.016 0.05 0.02 0.020 0.05 0.02 0. 0.014 <0.004 <0.004
'_.
Silver m L <0.0001 <0.01 0.05 0.1 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Thallium m L <0.1 0.002 0.0005 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Uranium Ci/L d
Uranium m L 0.03 <0.0004 <0.0004 <0.0004
�. .,.. „
Vanadium m L <0.01 <0.1 <0.1 0.1 0.1 <0.1 <0.1 <0.1
Zinc m L 0.006 <0.01 <0.01 5 2 2 5 2 0.02 0.02 0.02 0.05 0.02 0.02
Radionuclides
Gross Alpha Ci/L 92.3 15 a 140t3.4 1310t9.9 1130±13 5.3t0.8 2.4t0.6 2.6t0.6
Gross Beta Ci/L 28.6 4 mrem/ear b 70.9t2.3 444t4.9 1030t7.3 6.4t1.4 <2.0 4.731.4
Radium 226 Ci/L 4 6 �" 5 c f $ <0.2 <0.2 <0.2
Radium 228 Ci/L w 5 C) <1.0 <1.0 <1.0
IN
Radium 226+228 Ci/L
k 5 5 5f �: <1.2 <1.2 <1.2
Notes:
a The Gross Alpha Activity standard excludes alpha activity due to Radon and Uranium.The majority of the gross alpha count in these samples is attributable to uranium and radon.
b Based on the sum of beta emitters present and a risk-based analysis if 2-liters per day drinking water intake.
(c)The standard of 5 Ci/L is for combined Radium-226 and Radium-228.
d Uranium levels in the Lower Dolores River Basin cannot be increased above 30 u L or background,whichever is greater.
e Numeric table values for Segment 3a of the Lower Dolores River water quality standards.
f The Colorado Water Quality Control Commission has calculated a health-based standard of 0.02 u L for arsenic.