PERMFILE41795

• Permit No: M1980244
• IBM Index Class Name: Permit File
• Doc Date: 8/1/2005
• Doc Name: geotechnical analyses
• From: cripple creek and victor gold mining company
• To: dmg
• Media Type: D
• Archive: No

Golder Associates Inc.
44 Union Boulevard, Suite 300
Lakewood. CO USA 80228
Telephone: [phone]
Fax: [phone]&7
ww„v.golder.com
July 21, 2005
Cripple Creek & V ictor Gold Mining Company
AngloGold Ashanti (Colorado) Corp.
100 N. 3'a Street --
Victor. Colorado 80860
Golder
~ASSOC~eS
Our Ref: 053-2399
RECEIVED
AUG 0 1 2005
Attention: Timm C. Comer. Chief Environmental Coordinator piVision ~f Mmerels and Geology
RE: SQUAW GULCH OVERBURDEN STORCA~G,(E~,AREA GEOTECHIYnICA'L~ANALYSgESp/~
AND STABILITY REVIEW M - t l U~ - ~ ~ ~ l~ ~ ~ G+~-i' 1
Dear Timm: ~L~
Golder Associates Inc. (Golder) has prepared this letter report for the Cripple Creek & Victor Gold
Mining Company {CC&V) presenting the results of the 2005 geotechnical stability review conducted
for the Squaw Gulch Overburden Storage Area (SGOSA). The geotechnical analyses were conducted
by Golder as amid-project confirmation for the stability assumptions presented in the Amendment 8
application and in response to the observed surface cracking and settlement along the SGOSA slope
and crest earlier this year.
The geotechnical analyses presented herein consists of the following components:
• -Data evaluation;
• Slope stability analysis; and
• Settlement analysis.
The stability review conducted was also based on observations made by Golder personnel during site
visits and site survey data and topographic maps of the SGOSA provided by CC&V.
EXCECUTIVE SUMMr~ItY
The results of the geotechnical stability review conducted for the SGOSA facility indicate that the
observed surface cracking and measured deformations are the result of normal and expected
settlement of the overburden materials, and are not due to global instability. The observed settlement
and cracking is considered normal for a facility of this size with fill thicknesses on the order of
400 feet.
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