REP41178

• Permit No: C1981014
• IBM Index Class Name: REPORT
• Doc Date: 4/27/2007
• Doc Name: 2006 Annual Hydrology Report
• From: Energy Fuels Coal, Inc.
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

EFCI Southfield Mine -Year 2006 Annual Hydrology Report April 25, 2007

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j (
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j _ i TABLE 6
I ~
MW-16 WATER QUALITY DATA
-- -t ~ _ __
- ----- . ~
- _ _
i i ( ' j
i i
~ ------ ~ - - `
SAMPLE DATES: 1
2006 -~----
979-2005
MPARAMETER I UNITS 6/20/2006 i 11!20/2006 AVERAGE ~ MIN. AVE. I MAX.
pH (lab)_ {
Conductivit at 25C I units
umhos/cm dry ___
~ _ dry___ ~ _ __ 6.800
1190.000 7.764
2322.155 i 8.600
4980.000
Temperature (field) ! deg C ~ E 12.000 14.668 ~ 19.500
Solids, total dissolved mg/I i 704.000 1656.566 ` 3710.000
Bicarbonate as CaCO3 j m /I ( 192.000 ~ 537.959 ' 1100.000
Calcium, dissolved ~
Chloride -----~~~-- _mg/I _ _
mg/I
-~-~~~--~-
--------~~
-- 1.070__
-5.600 41.971 j
59.910 ~ _220.000__
279.000
Magnesium, dissolved m /I ~ 0.000 6.299 33.700
Nitrogen, ammonia mg/I 0.000 0.942 ( 36.000

Nitro en, nitrate nitrite _ ___
~ mg/I ____
-
0.000
4.127 __
24.800
Phosphorus, ortho mgll 0.000 0.029 0.200
Phos horns, total m /I 0.000 0.091 0.310
Sodium, dissolved mg/I 197.200 530.174 980.000
Sulfate mg/I 51.000 712.755 1850.000
Arsenic, dissolved m /I 0.0000 0.0007 0.0040
Cadmium, dissolved /I 0.000 0.001 0.010
Iron, dissolved
Manganese, dissolved mg/I
m/I _____ _ 0.000__
0.000 0.806_
0.029 _ 8.8_00_
0.270
Mercury, dissolved mg/I 0.0000 O.DD01 0.0017
Selenium, dissolved____ mg/I 0.000 0.005__ 0.053
_
Zinc, dissolved _
_
~ m /I _____ ____ _ _
0.000 __
0.038 _
_
0.272

NOTES:
1. Zero data values used for parameters analyzed for but not detected above MDL.
2. Blank data field = no data. I
3. MW-16 -dry beginning in 2001 -March 2003 and periodically since (averages based on all previous years samples) j
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