2013-05-15_REPORT - C1981018

• Permit No: C1981018
• IBM Index Class Name: REPORT
• Doc Date: 5/15/2013
• Doc Name: 2012 Annual Hydrology Reports Review
• From: DRMS
• To: Blue Mountain Energy
• Annual Report Year: 2012
• Permit Index Doc Type: Hydrology Report
• Email Name: ZTT
• Email Name: DIH
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
C O L O RA D O
D I V I S I O N o f
Denver, Colorado 80203
RECLAMATION
Phone: [phone]
M IN I NIN G
N
FAX: [phone]
SAFETY
May 15, 2013
John W. Hickenlooper
Governor
Scott Wanstedt
Blue Mountain Energy
Mike King
3607 County Rd. 65
Executive Director
Rangely, CO 81648
Loretta E. Pineda
Director
RE: Deserado Mine, Permit C- 1981 -018
2012 Annual Hydrology Reports
Dear Mr. Wanstedt
The Division has completed its review of the 2012 Annual Hydrology Report (AHR) received on
February 1, 2013. The Division finds the 2012 Annual Hydrology Report is in compliance of the
following Rules:
Rule 4.05.13(4)(a) — The data compiled in the 2012 AHR is kept and maintained at the Deserado Mine
office.
Rule 4.05.13(4)(b) — The 2012 AHR presents the hydrologic data and analysis resulting from the
Deserado Mine for the period of October 1, 2011 through September 30, 2012.
Rule 4.05. 13 (4)(1), (ii), (iii) — The 2012 MR identifies the water quality data obtained during the 2012
water year (October 1, through September 30). This includes data from each monitoring site. The AHR
included interpretation of the data and related impacts of the hydrologic balance.
The following is a review as per the predicted probably hydrologic consequences based on the baseline
predictions in the Deserado Mine permit. Predictions appear to be accurate and meet the operator's
obligations.
1. PHC: The impact of mining on the quantity of water in the White River will be minimal.
The water withdrawal rate from the lagoon at the White River during the 2012 reporting year was
estimated at 119,281,000 gallons or 366 acre -feet. This compares with an expected withdrawal
rate of 552 acre -feet per year at full production.
2. PHC: Groundwater inflow into the mine will be very low.
Mining in the B -Seam encountered only small flows of water and the mine is essentially dry.
Typical inflows are in order of 20 to 40 gpm with occasional short term increases when localized
perched water tables are encountered. The inflows include water resulting from leaks, water line
brakes, and other similar contributions as well as that originating from inflows from geologic
formations.
PHC: The construction of surface facilities associated with the mine will result in temporary
increase in the suspended solids concentration of the adjacent and receiving stream.
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