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 Sampling Data and Leach Test Results
- l ._ Water samples from Mine Sump-- - Colorado 1 __..orado Water standards SPLP Tests of Ore Sam SPLP Taste of Waste Rock Samples
Sample I D. OdL-2951 1290-001 0744-001 Ground Water Surface Water 129461 129462(W 92 129463(WW3) 129844(WW4) 12 ) 1
Major lone: �u 9ts -_ - - - - --- (- i 1118/2007 1Mi/Y007 1N0/2007 1M0/2007 1H8/2007
Date 9I7112009 10/24/2009 1/1712007 Domestic Water Agricultural Ih- Stream e) Domestic Water Agriculture 111$12007
Sodiumm/L 144 140 123 9.3 10.7 _ 11.8 10 _8.6 11.2
Calaum _ _.__�mg/L _- 13 _ 12.4 9.2 _- - -- 5.1 16.1 8.8 5.2 5.3 3.0
Magnesium mg/L 6 4.8 5.0 1.2 2.8 2.3 1.11 0.9 0.8
Potassium _ 10.5- 9 9.3 - _ _ - - <0.5 <0.5 -- 2.2 <0.5 <0.5 2.6
Chloride _ �.m IL 29 20 17 __ 250� -� 250 - _ <1 <1 I <1 <1 0 <1
Fluoride 0.39 0.6 0.3 _- 4.0 2 T- 2.0 - - - <0.1 0.1 0.1 <0.1 <0.1 0.1
N as - �.. _<0.1 <0.1 <0.1 <0.1 <0.1 <0.1
N as Nitrate*Nitrite /L _ 1.2 0.5 10.00 1000, -t- 10.0 100 <0.1 <0.1 - -<0.1 <0.1 <0.1 _ <0.1
N es_Narate A 0.72 10.0 _ _
1.0 10. -<0.1 <0.1 <0.1 <0.1 <0.1 <0.1
Phos ate /L 0.01 _ ,__ _-
Ph08 horns <0.1 <o.i <0.1 _ <0.1 <0.1 .0.1' <0.1
Bicarbonate /L 366 314 - -- _ - -- -i 29 43 41 24 25 24
Carbonate
m - <t
-. -- -
Silica ___ _ 8.6 _ - 3.5 3 8 4.4 2.6 2.8_ 3.3
- __. _ 36 28 260. _. _ -- - 250 250 - 3 33. 15 4 ,.. 2,- 3
Sulfate 19
Total Dissolved Solids A 390382 _
Other: 340 .. - -- - 38 104 52 40 52
Total Suspended Solitls 21.8
Hardness 671 - 43.8 17.8 51.6� ---- 3 36 42` _-- -
Ammonia /L -- 282 1 34 1 37 1 36
ws _ - .. 31 37 36
H su �� - 7.50 8.30 � -.,){ ,' 6.5 to 8.5 6.5 to -- _ 159 9.87 .'. 10.1 102 10.1
Total Alkalin Q 302 280 286 36
p 8.5te9.0 5.0 to 9.0 _ 10.1 9.89
Conductivity umhollcm 708 595 87.4 1251 83.5 87.9. 92._6
Turbift
Metals;
_ assoNed Total 1.5 Dissolved 2 Diasohrod Dissolvetl 5 _. TotalAlum -_ -- -- -- --0.2 -- <0.1�... _ _._g _ _. __ _ - -0.2 0.2 - 0 2 0.2
Antimony mg/L T <0.05 0.006 _ 0.003 0.004-' <0.001 <0 001 0 001
Arsenic mg/L 0.015 0.023 0.027 0.05 0.1 0.1DO 0.1 yj 0.1 �" "H'-- 0.033 0 0 002 026
Barium mg/L 0.30 _ 0.2 0.1 2.0 __ 1.0 <0.1 <0.1 <0.1 <0.1 0.2 10.1
Beryllium mg/L <0.01 0.004 0.1 0.100 0.004 0.1 c0.001 <0.0011 <0.001 <0.001 <0.001 <0.001
Boron mg/L 0.04 0.1 _ 0.75 0.75 dissoIved 0.75 <0.1 <0.1 W.1 <0.1 <0.1- <0.1
Cadmium mg/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, <0002 <0.001
Chromium mg/L <0.001 <0.05 0.1 0.1 0.100 0.051 0.1 0.05 <0.05 <0.05 <0.05 _
Copper __ mg/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 __ mg/L _ _. 0.07 1.07 0.09 0.3 5 _ 0.3(dissolvedl 0.3 0.09 0.03 0.071 0.07T 0.051 0.11
Lead _ mg/L c0.001 <0.05 <0.05 0.06 0.1 0.100 0.05 0.1 6.004 <0.001 0.001 <0.001 <0.001 <0.001
Manganese mg/L_ _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 mg& 0.00001 c0.001 0.002 0.01 0002 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
_. _.._
Molybdenum _ mg/L I _0.005 <0.1 _ <0.1 <0.1 0.3 0.8 <0.1 `Q 1 <0.1� <0.05
Nickel 2� - <0.05 <0.05 0.1 0.2 0.200 0.1 0.2 <0.06 <0.05_ <0.05 <0.05 <0.05'
Selenium 0.040 0.016 0.030 0.05 0.02 0.020 _ _0 05 _ 0.02 , .;Q0.014
.,<.. 0.014 <0 00a <0.004
__ <0.01
Silver <0.0001 j <0.01 0.05 0 1 <0 01 <0.01 <0.01 <0.01 <0.01 _
L __.� -_ - c0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Thallium ti c0.1 0.002 0 0005
Uranium ilL 86.0 --�_. -- - d _ --
Uranium 0.098 0.189 0.130 - -- 0.03 _� , 9.1l9;, T�0 <0.0004 <0.0004 <0.0004
Vanadium 2 <0.0 <0.1 <0.1 0.1 ----- -�--- r <0.1
_..
Zinc _ 0.00-6I1L <0.01 <0.01 5 2 2 5 2 0.02 0.02 0.02 0.05, 0.02_ 0.02
Radionuclides - - - ---- - - - - -
i
Gross AlpM pCill, �_-- 92.3 15 a _ _ 140t3.4 1310t9.9 1130t13 5.330.8 _ 2.4t0.6 2.830.E
Gross Beta i/L 28.6 4 mre ar __ _ 1_ 70.9t2.3 aaata.s 1036i7.3 6.4_t1.4 40 4.7t1.4
Radium 226 pCill- 4.6 9.7 32__ 5 c _ _ 6.7t2.0 24.2t3.5 134t7.8 <0 2 <0.2 <0.2
Radium 228 Ci/L _ __ 2.0 5 c 12.2t4.7 13At4.8 16.4t4.8 <7.0 <1.0 <1.0
Radium 225-228 pCi/L- - 9.7+ 5.2 5 5 5 18.9 37.6 150.4 <1.2 <1.2 <1.2
ao The Gross AI ha Activity standard excludes alpha activ' tlue to Radon and Uranium.The majo' of the ross aI ha count m these samples is(_�_-_) DD Y d r 1_^_ty _99 P p attributable to uranium and radon. _
(b)Based on the sum of beta emitters present and a risk-based anal sis if 2-Iaera�er da drink) water intake.
(c)The stendaM ofThe of 5 pCUL is for combined Radium-226 and Radium-228��
tl Uranium levels in the Lower Dolores River Basin cannot be increased above 30 uglL oratrove 30 or badround,.whichever is greater.
e Numeric table values for Segment 3a of the Lower Dolores River water quality standards. _
The Colorado Water Quality Control Commission has calculated a health-based standard of 0.02 u/L for arsenic.