2014-05-14_REPORT - C2009087

• Permit No: C2009087
• IBM Index Class Name: Report
• Doc Date: 5/14/2014
• From: DRMS
• To: Peabody Sage Creek Mining, LLC
• Annual Report Year: 2013
• Permit Index Doc Type: Hydrology Report
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

Peabody Sage Creek Mining, LLC
Page 6
0514/2014
wells
2009 -087
17. Parameters to
Volume 1, p. 2.04-
All required parameters were analyzed.
be analyzed in
105 of CDRMS
ground water
mining permit C-
samples
2009 -087
18. Basic Standards
CWQCC regulations
The PSCM did not generate significant amount
for Ground Water
41.4 and 41.5
of leachates in 2013. Eight groundwater wells
exceeded the pH standard (8.5) in 2013. The
baseline water quality for pH associated with
the eight groundwater wells exceeded the 8.5
standard. Eight groundwater wells exceeded
the manganese standard (0.2 mg /l) in 2013.
As mentioned in the above item number 8
above, in soils with a high pH a standard of 10
mg /l would be more appropriate than the 0.2
mg /l. In 2013 no PSCM wells displayed a value
higher than 5.0 mg /l. Three wells exceeded
the fluoride standard (2.0 mg /l). The iron
standard was exceeded at alluvial well 71.
The baseline conditions for all of the above
mentioned wells exceeded the basic standards
for groundwater prior to the issuance of C-
2009 -087.
19. Restoration of
CDRMS regulation
For the 2013 water year, water levels at all
ground recharge to
4.05.12(3)
wells fell within their historic ranges. All
approximate pre-
alluvial wells displayed seasonal water level
mining rate
fluctuations in response to periods of
precipitation recharge.
20. Prevention of
CDRMS regulation
Compliance with the Basic Standards for
adverse impacts to
4.05.11(1)
ground water, as in item 10, indicates the
ground water
permittee is preventing adverse impacts to
systems outside
ground water quality outside the permit area.
permit area
Monitoring data indicate the permittee is
preventing impacts to water quantity outside
the permit area. All alluvial wells showed