2009-07-15_REPORT - C1980006

• Permit No: C1980006
• IBM Index Class Name: REPORT
• Doc Date: 7/15/2009
• Doc Name: 2008 AHR Review Letter
• From: DRMS
• To: Kerr Coal Company
• Annual Report Year: 2008
• Permit Index Doc Type: Hydrology Report
• Email Name: TAK
• Media Type: D
• Archive: No

Require-

Requirement Requirement
citation ment
complied
Comment
with
(yes / not
J. Sampling Table 61 of
frequency of CDRMS
ground water mining yes
monitoring wells permit C-80-
006
K. Para- Table 61 of
meters to be CDRMS
analyzed in
ground mining yes
permit C-80-
water 006
samples
DRMS previously concluded the Marr Mine does not have
the potential to negatively impact ground water and,
therefore, a ground water point of compliance is not
warranted (Memo to Hydrology file, dated 6/13/07). For the
L. Basic Standards CWQCC loadout, the determination was based on the loadout's lack of
for Ground regulations yes deep excavations and the lack of activities that could
Water 41.4 and 41.5 generate leachate or toxic substances. (The mine portion of
the permit area underwent final bond release prior to
submittal of this report. Ground water monitoring in that
area ceased in 2007, following approval of TR-23.)
M. Restoration of
ground water CDRMS

recharge to
regulation
yes Activities at the loadout have not physically disrupted

approximate
4.05.11(3) aquifers or used ground water.
reminin rate
The Probable Hydrologic Consequences section of the
permit application predicts no appreciable impacts to
ground water systems outside the permit area.
Bedrock ground water. There have been no significant
bedrock excavations or discharges of water into bedrock at
the loadout.
N. Prevention of
adverse impacts CDRMS
to ground water regulation yes Alluvial ground water. Alluvium within the area of
systems outside 4.05.11 influence of the mine is laterally discontinuous and of
the permit area limited areal extent (less than 300 acres in aggregate). The
only water from the Marr Mine that could reach the
alluvium would be surface runoff. No mine impacts to
alluvial ground water have been found in more than 10
years of data from the downgradient alluvial monitoring
wells at the loadout (AP-1 and AP-2).
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