2008-05-29_REPORT - M2007044

• Permit No: M2007044
• IBM Index Class Name: REPORT
• Doc Date: 5/29/2008
• Doc Name: First quarter 2008 report
• From: Energy Fuels Resources Corp.
• To: DRMS
• Email Name: GRM
• Media Type: D
• Archive: No

,j-p7 11
ENERGY FUELS RESOURCES"
CORPORATION
DECEIVED
May 23, 2008
G. Russell Means MAY 2 9 2008
Colorado Division of Reclamation, Mining and Safety GRAND JUNCTION HELD OFFICE
DIVISION OF
101 South 3ra, Suite 301 RECLAMATION MI.N',NG & SAFETY
Grand Junction, CO 81501 / RECEIVED
Transmittal: First QuarterU2008 port, File No. M-2007-044
Whirlwind Mine, 'Mesa County, Colorado JUN 0 5 2008
Dear Russ: Division of Reclamation,
Mining and Safety
Attached is the quarterly report for the Whirlwind Mine. Water samples were collected
from the Whirlwind Mine sump and the PR Spring tank pipe. DP Spring was checked and
a flow measurement was recorded. The laboratory report for the two samples is attached
along with photographs of PR Spring and DP Spring.
The flows at PR Spring and DP Spring were estimated by determining the time required
to fill a 5-gallon bucket. The estimated flow rates are consistent with historical records
for these springs. The inflow within the Whirlwind decline could not be measured
directly because it occurs over approximately 100 feet of the decline. The Whirlwind
inflow of 2.5 gpm was estimated by calculating the daily discharge from the mine sump
to the untreated water tank at the surface during April 2008. This inflow rate was higher
than the 1.5 gpm that was estimated at the start of dewatering operations in November
2007. In November, the inflow rate was calculated by measuring the rise in water within
the decline when the dewatering pump was shut off. The difference in inflow rate
between November and April is attributable to the hydrostatic pressure that the mine
water pool exerted on the sides of the decline during initial dewatering. This hydrostatic
pressure would have reduced the rate of water inflow until the pool water level dropped
to below the seep area.
The analytical data for PR Spring and the Whirlwind Mine sump were added to Tables 1
and 2, respectively, which also show previously collected data for comparison purposes.
The water sample from PR Spring (see Table 1) was similar in chemistry and water
quality to previous sampling events. The sample from the mine sump (see Table 2)
contained elevated levels of total suspended solids (3,540 mg/L) and total metals because
the miners were working immediately adjacent to the sump at the time of sample
collection. The elevated suspended solids have affected our water treatment plant
E)ierg} 1_` els Resources C ca-porado:7 44 1_ nion llotilevard, Stiitc: 00
Lakewood, CO 80128 1 hone.: 03)-974-2140