2009-02-19_REPORT - C1996083

• Permit No: C1996083
• IBM Index Class Name: REPORT
• Doc Date: 2/19/2009
• Doc Name: 2006 Annual Hydrology Report Adequacy Review
• From: DRMS
• To: Bowie Resources, LLC
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Email Name: JJD
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
February 19, 2009
COLORADO
D I V I S ION O F
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Mr. William A. Bear Governor
Bowie Resources LLC Harris D. Sherman
P.O. Box 483 Executive Director
Paonia, Colorado 81428 Ronald W. Cattany
Division Director
Natural Resource Trustee
RE: Bowie No. 2 Mine, Permit No. C-96-083, Bowie Resources LLC
2006 Annual Report, Adequacy Review
Dear Mr. Bear:
The Colorado Division of Reclamation, Mining and Safety (Division) has finished its review of the Bowie
Resources LLC (BRL) submittal of the 2006 Annual Report and has the following comments and
questions.
2006 Annual Hydrology Report (AHR)
The requirements of the hydrologic monitoring program were followed in 2006. All of the required
sampling sites were sampled at the required sampling times. The field and lab parameter lists were
followed as well.
The precipitation data indicates that 2006 was a drier year than 2005, and this is reflected in the increased
number of spring and stock pond monitoring sites that were dry. The resultant decreases in surface water
and ground water probably contributed to the increases in the concentrations of chemical constituents at
some of the monitoring sites. However, there does not appear to be any adverse effects to the hydrologic
regime of the area.
The Division has one question concerning the sampling of stock ponds:
On permit application page 2.05-76, it is stated that inflow and outflow will be measured for the
stock ponds. However, in the field parameter list found on page T3-1 of the 2006 AHR, it is stated
that the flow rate will not be measured for ponds. Please explain.
2006 Annual Mine Inflow Report
This mine inflow report is complete and the Division has no questions. BRL reported that there were no
mine water discharges during 2006. Mine water inflow was negligible during 2006, as had been the case in
2005 as well.
The total consumptive water use at the mine increased from 263.0 acre-feet in 2005 up to 291.3 acre-feet
for 2006. This increase in the consumptive water use at the Bowie No. 2 Mine is still below the predicted
value of 326.7 acre-feet that is stated in the permit application. The water usage rate at the mine, including
pond evaporation and dust suppression, increased somewhat from 64.3 acre-feet per one million tons of
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