2014-01-29_REPORT - C2010089

• Permit No: C2010089
• IBM Index Class Name: Report
• Doc Date: 1/29/2014
• Doc Name: Review of 2012 Annual Hydrology Report ‎(AHR)‎
• From: DRMS
• To: Western Fuels - Colorado, LLC
• Annual Report Year: 2012
• Permit Index Doc Type: Hydrology Report
• Email Name: RDZ
• Email Name: DIH
• Media Type: D
• Archive: No

Page 2
Require-
ment
Requirement
Regulation
complied
Comment
with ? (yes
/ no)
H. Antidegradation
CWQCC
New Horizon receiving waters are "Use- protected" (Segment
Rule for Surface
regulations
yes
12 of the San Miguel River) and not subject to the
Water
31.9(2) and
Antidegradation rule.
35.0.
L Sampling
Appendix
frequency at
2.05.6(3) -3
yes
surface water
of PAP
monitoring sites
J. Parameters to be
Appendix
sampled at
2.05.6(3) -3
ves
surface water sites
of PAP
K Prevention of
As indicated above (items F. and G.), the data show limited
impacts to surface
impacts on the surface water in the receiving waters that
water that
CDRMS
flow through the permit boundary. Also, the New Horizon
adversely impact
regulation
yes
North monitoring plan includes surface water monitoring of
the postmining
4.05.1(2)
the San Miguel River (SE -N217 and SE- N218), and the data
land use
indicate no significant impacts on the river.
L. Filing frequency
CDRMS
When the AHR was submitted, no sediment ponds had been
of pond reports
regulation
NA
constructed, and no pond reports had been submitted.
4.05.9
M. Timely filing of
CDRMS
When the AHR was submitted, no sediment ponds had been
pond reports
regulation
NA
constructed, and no pond reports had been submitted.
4.05.9
N. Content of pond
CDRMS
When the AHR was submitted, no sediment ponds had been
regulation
NA
constructed, and no pond reports had been submitted.
reports
4.05.9
Exceedances of standards are not problematic. They are
O. Interim Narrative
CWQCC
either: _ upgradient wells.
Standard for
regulation
yes
- In downgradient wells but upgradient concentrations are
Ground Water
41.5.C.6
comparable.
P. Sampling
All groundwater field parameters must be measured
frequency of
Appendix
monthly per the PAP. The data indicate that
ground water
2.05.6(3) -3
no
conductivity, pH, and temperature were only measured
monitoring wells
of PAP
quarterly.
Q. Parameters to be
Appendix
analyzed in
2.05.6(3) -3
ves
ground water
of PAP
samples
There are aquifers beneath the NHN Mine that are potential
targets for water supply wells. These are not believed to be in
R. Basic Standards
CWQCC
hydraulic communication with the mined stratigraphic
for Ground Water
regulations
yes
sequence, and therefore are not expected to be affected by
41.4 and 41.5
mining. The water in the mining sequence has been deemed
unusable for domestic or irrigation purposes. The water in the
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