REP09075

• Permit No: C1981028
• IBM Index Class Name: Report
• Doc Date: 9/28/2006
• Doc Name: 2005 AHR Review letter
• From: DRMS
• To: Coors Energy Company
• Annual Report Year: 2005
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Require-

Requirement Require-ment ment
complied
Comment
citation with ?
es/no
V. Minimization of
disturbance to the CDRMS Changes to the hydrologic balance within and adjacent to the
hydrologic
regulation
es permit area, if any, would be the minimum that can be
balance within
4.05.1(1) Y expected from a surface coal mining operation.
and adjacent to
the ermit area
W. Prevention of
material damage CDRMS Previously discussed monitoring data and ground water
to the hydrologic regulation yes quality predictions indicate material damage has been
balance outside 4.05.1(1) prevented.
the ermit area
X. Agreement of CDRMS The Probable Hydrologic Consequences section of the
observed regulation
2.05.6(2) and permit application predicts no appreciable impacts to the
hydrologic hydrologic balance. Monitoring data in the hydrology
impacts with requirement report confirms this prediction. No impacts to ground

"probable to keep
information
Yes
water have been found in downgradient alluvial monitoring
hydrologic well, DH-96. Should degradation of ground water by
consequences" current,
CDRMS leachate immediately adjacent to pits occur, it would be a
(PHC) projected
regulation minor impact. No adverse impacts to surface water quality
in mining permit
2.03.3 1 have been found at the Keenesburg Mine.
Y. Adequacy of CDRMS
ground water regulation yes
monitorin ro ram 4.05.13(1)
Z. Adequacy of CDRMS
surface water regulation yes
monitoring 4.05.13(2)
ro ram
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