2018-06-04_REVISION - M1980244 ‎(4)‎

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 6/4/2018
• Doc Name: Adequacy Review Response
• From: CC&V
• To: DRMS
• Type & Sequence: TR103
• Email Name: TC1
• Media Type: D
• Archive: No

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NEW M O N T Newmont Mining Corporation
Cripple Creek&victor G,)Id i.'muig Company
100 North 3i btreet
P O Box 191
Victor,CO 80860 p4
vn^r,u newmnnt con',
JUN 0 4 2018
SENT CERTIFIED, RETURN RECEIPT REQUESTED DMSION OF RECLAMATION
7017-2400-0000-4077-8807 MINING AND SAFETY
May 31, 2018
Mr. Timothy Cazier, P.E.
Environmental Protection Specialist
Colorado Department of Natural Resources
Division of Reclamation, Mining, and Safety
Office of Mined Land Reclamation
1313 Sherman Street, Room 215
Denver, Colorado 80203
Re: Project, Permit No. M-1980-244;
Technical Revision(TR-103) Preliminary Adequacy Review
Dear Mr. Cazier:
On May 2, 2018, the Cripple Creek and Victor Gold Mining Company (CC&V) submitted a
Technical Revision (TR) #103 outlining the procedures and placement of ore on the Squaw
Gulch Valley Leach Facility (VLF2). On May 24, 2018, CC&V received Preliminary Adequacy
Review comments from the Division of Reclamation, Mining and Safety's (DRMS). Please see
the responses below to address the outstanding adequacy concerns, DRMS' comments in italics
with Newmont's response to comments in bold.
1) Overall slopes: The third bullet on page 3 addresses bench widths and ore slopes specifically for the
100 foot lift thickness. However the first bullet on p. 3 limits the lift thickness to 50 feet for ROM with
a D.100 greater than three inches. Please address the four conditions under the third bullet for these
50 foot lifts.
a. On ore slope against up-sloping ground is 1.6(H):1(V), a bench with a minimum
width of 10' is required between the crest of the lower lift and the toe of the new
lift.
b. Ore Slopes against down-sloping ground is 2.5(H):1(V), a bench with a minimum
width of 55' is required between the crest of the lower lift and the toe of the new
lift.