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2008-04-15_REVISION - M1980244 (329)
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2008-04-15_REVISION - M1980244 (329)
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Last modified
6/15/2021 5:52:13 PM
Creation date
5/12/2008 10:33:47 AM
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Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
REVISION
Doc Date
4/15/2008
Doc Name
VOL VII APP 13 Summary Audit Report
From
CC & V
To
DRMS
Type & Sequence
AM9
Media Type
D
Archive
No
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<br />Discuss the basis for the Finding/Deficiencies Identified: <br />• <br />• <br />Spill prevention and containment SOPs are in place for all cyanide unloading, <br />storage, mixing, and cyanide application activities. Operating directives on <br />unloading, mixing and storage are also provided by CyPlus and incorporated by <br />CC&V as SOPs. These measures include regular (daily/monthly) inspections, <br />inter-departmental meetings and record keeping, and regular training. Training <br />activities have included mock drills designed to emphasize responses to cyanide- <br />related emergencies. CC&V has also completed a "community exposure <br />analysis' by a qualified third-party consultant. This review and its findings have <br />been incorporated within the overall cyanide handling and emergency response <br />program. <br />Secondary containment design and as-built drawings were reviewed. Plans <br />show that secondary containment includes the capacity to contain 110% of the <br />largest tank within an individual containment area, plus solution in the <br />respective service pipeline(s). The entire ADR plant and cyanide unloading <br />facilities are also lined. All secondary containment areas are served by sumps <br />with pump-back equipment. Key pumps are automatic and are activated when <br />fugitive flows are measured; activation switches are triggered by transducer- <br />measured water levels. SOPs are posted at the various monitoring points; in- <br />heap pond levels are not allowed to exceed 80% of the permit volume limits. <br />Environmental Resources field inspection report forms are used to track <br />daily/monthly conditions. <br />All CC&V cyanide process water pipelines are aboveground, and placed on <br />synthetic liners. Spill containment measures are provided for all such pipelines. <br />These are all located over the top of the VLF liner system or inside the <br />containment areas of the ADR plant. The engineered liner and LVSCS design <br />involves a number of redundancies that reduce the risk of fugitive cyanide <br />solution leaving the containment area or facilities. <br />CC&V has awell-engineered and tested leak detection program that enables <br />rapid identification of potential fast or slow leaks in the supply pipelines and <br />distribution system. Process Operations and Environmental Resources personnel <br />routinely inspect cyanide process solution pipelines. There is no perennial <br />surface water in the mine area, so inspections are designed to protect storm <br />water and ground water quality. <br />Cresson Protect <br />Name of Mine <br />~~ <br />Signature of Lead Auditor <br />10 September 2007 <br />Date <br />Page 20 of 41 <br />
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