2011-02-17_APPLICATION CORRESPONDENCE - C2010089

• Permit No: C2010089
• IBM Index Class Name: APPLICATION CORRESPONDENCE
• Doc Date: 2/17/2011
• Doc Name: 2nd Surface Water Hydrology Adequacy Review
• From: Joe Dudash
• To: Marcia Talvitie
• Email Name: MLT
• Email Name: JJD
• Email Name: SB1
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
Date: February 17, 2011
To: Marcia Talvitie
From: Joe Dudash,-r 1!
RE: New Horizon I rth, Permit No. C-2010-089, Western Fuels- Colorado LLC
New Permit Application, Second Surface Water Hydrology Adequacy Review
COLORADO
D IV IS I ON OF
RECLAMATION
MINING
SAFETY
I have finished my second adequacy review of the new permit application for the New Horizon North
Mine, concentrating mainly on surface water monitoring and the Probable Hydrologic Consequences
aspects. The following are my adequacy review questions and comments:
1. In Table 2.04.7-5 on page 17 of Section 2.04.7, surface water monitoring station SW-N205 is
described as being inflow for Glasier Draw. However, referring to the topographic contour lines
on Map 2.04.7-1, it appears that runoff from this site would flow southwest into Meehan Draw,
rather than into Glasier Draw. Please explain.
2. In the last full paragraph on page 23 of Section 2.04.7, reference is made to pond NHN-001 and
ponds NHN-002 through NHN-004. Please revise this text to show that there are three ponds.
3. Referring to Map 2.05.3(3)-1, it appears that haul road embankments are immediately adjacent to
all three sediment ponds. Please discuss whether or not the standing water in the sediment pond
might come into contact with the toe of the road embankment and, therefore, affect the
geotechnical stability of the road embankment.
4. Under Rules 2.05.3(4)(a)(i)(A), 2.05.3(4)(a)(ii)(A) and 2.10(2), please add appropriate
certifications to the three sediment pond Figures 2, 3 and 4 found in Appendix 2.05.3(3)-1.
5. The Division requests that the surface and ground water monitoring program required under
Rules 2.05.6(3)(b)(iv) and 4.05.13, and mentioned on page 6 of Section 2.05.6(3), be described
more fully. The revised description should include a list of the monitoring sites, a list of the field
and laboratory parameters to be sampled and the sampling frequency.
6. In several instances in the permit application, reference is made to baseline surface water
hydrology data being located in the New Horizon 1 Area and the New Horizon 2 Area,permit
applications. Please include all baseline information relevant to the proposed New Horizon North
Mine in the New Horizon North Mine permit application.
7. In the top paragraph on page 18 of Section 2.04.7, potential uses of water for domestic drinking,
irrigation and livestock are mentioned. Please expand the discussion to include, and reference, the
applicable surface water quality standards, if any, from the CDPHE.
cc: Sandy Brown
c:/word2007/newhnorth/newappmemo2
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines