2017-02-03_PERMIT FILE - C1980004 ‎(22)‎

• Permit No: C1980004
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Appendix P Water Depletion Estimates
• Media Type: D
• Archive: No

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,.� United States Department of the Interior O
N
OFFICE OF SURFACE KRONG =
. Reclamation and Enforcement
Western Region Office�
1999 Broadway, Suite 3320
QDenver, CO 80202-3050
'CO -0026
November 4, 2011
Ms. Pam Repp, Acting Western Colorado Supervisor
- - -
---U.S--Fish, and -Wildlife Service -15
Ecological Services �at
Western Colorado Office U �$nd5a�"'`'
764 Horizon Drive, Building B
Grand Junction, Colorado 81506-3946
RE: Biological Assessment (BA) Addendum 1 for McClane Canyon Mine Expansion
Project and Fruita Loadout Facility
Dear Ms. Repp:
This is an addendum to the Biological Assessment for the CAM -Colorado, LLC McClave
Canyon Mine Expansion Project and Fruita Loadout Facility submitted to the U.S. Fish and
Wildlife Service on September 26, 2011. This addendum provides further clarification and an
additional conservation measure for the McClane Canyon Mine Expansion Project and does not
include any additional clarification or conservation measures for the Fruita Loadout Facility.
Note: This letter in draft version was originally submitted via email from OSM to Terry Ireland
on October 24, 2011, which Mr. Ireland provided comments via phone conversation with OSM
on October 25, 2011. As a result, OSM prepared a second addendum — Addendum 2 (November
1, 2011) that provided further clarification to the Fruita Loadout Facility. However,_ O_ SM
unintentionally omitted to submit this final version of Addendum I to USFWS.
Protection of Critical Habitat
Critical habitat for Colorado pikeminnow and razorback sucker may extend for some distance in
Salt Creek upstream from its confluence with the .Colorado River, although the 100 -year
floodplain in Salt Creek has not been mapped by the Federal Emergency Management Agency
(FEMA). East Salt Creek is a tributary to Salt Creek and both drainages are within Lower
Colorado River Stream Segment 13b where they are located downstream (downgradient) from
the Government Highline Canal, defined in Colorado Department of Public Health and
Environment (CDPHE) Water Quality Control Commission Regulation 37. The Table Value
Standard (TVS) for selenium for Segment 13b is 18.4 pg/L (acute) and 4.6 pg/L (chronic).
Those concentrations also apply to the water quality in critical habitat assumed to be present in
lower Salt Creek. Salt Creek is included in Colorado's Section 303(d) list of impaired Waters
for impairment (with moderate priority) due to concentrations of selenium.
PR -02 10/12