INSPEC07646

• Permit No: M1980244
• IBM Index Class Name: Inspection
• Doc Date: 6/18/2003
• Doc Name: Response to Inspection
• From: CC & V
• To: DMG
• Inspection Date: 5/29/2003
• Media Type: D
• Archive: No

CC Cripple Creek 8t Victor Gold Mining Company
A Joint Venture - ANGLOGOLD (coLOR4oo) CORP., Manager
&v Operations Office
P.O. Box 191 • 100 North 3rd Street
Victor, Colorado 80860
[phone] • Fax [phone]
Sent Certified Return Receipt
7001-1940-0002-5402-1725
June 17, 2003
RECEIVED
JUN 18 2003

Mr. Berhan Keffelew
Environmental Protection Specialist
Colorado Department of Natural Resource
Division of Minerals and Geology
Office of Mined Land Reclamation
Permit :1~'y~}~ a~{-t~- Confidental?:
Class: ~ Type-Seq.:
From: To:
Doc. Name:P~ Fides-s~T4-rr31a/4 tSZT'rdAl
1313 Sherman Street, Room 215
Denver, Colorado 80203
Doc. Date (if no date stamp)
Re: CC&V Response to Division of Minerals and Geology ("DMG") Potential Issues in
Inspection Report Dated June 2.2003
Dear Mr. Keffelew:
DMG has raised questions about potential impacts to the Geomembrane (synthetic liner)
and clay Soil Liner Fill ("SLF") of a composite liner system (single synthetic liner over
SLF) that may result from hydraulic head on the liner system during the construction
period. The questions were raised with respect to the construction of the Phase IV
Pregnant Solution Storage Area (PSSA) Low Volume Solution Collection System
(LVSCS) during the DMG inspection of May 29, 2003 and subsequent Inspection Report
dated June 2, 2003.
At the time of inspection, the PSSA was under construction and was not yet operational.
The PSSA was essentially dry but for small puddles of rainwater on the uppermost liner.
Drain cover fill had not yet been placed on the liner in this azea. There was no ore stacked
in the PSSA and no cyanide solution had been applied to any portion of the Phase IV
PSSA, as it was still under construction.
John Lupo, PhD. P.E. and Senior Project Manager for Golder Associates, as Design and
Certifying Engineer for the Phase IV Valley Leach Facility ("VLF"), has addressed
DMG's questions in a letter to CC&V dated June 3, 2003, as attached. Dr. Lupo has
concluded, based on engineering analysis, that even if the LVSCS had five feet of head
applied in the sump area, and hypothetically there was an additional 30 feet of operating
head in the PSSA, that SLF settlement would be less than 0.5 inch. This amount of
settlement is well within allowable specifications for the PSSA composite liner.