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HYDRO28426
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HYDRO28426
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Last modified
8/24/2016 8:47:38 PM
Creation date
11/20/2007 9:24:17 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
Hydrology
Doc Date
11/6/1996
Doc Name
REVIEW CC&V RESPONSE ABOUT TOTAL SULFUR ANALYSES CRESSON PROJECT PN M-80-244
From
DMG
To
BERHAN KEFFELEW
Media Type
D
Archive
No
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4 • • <br />area indicate further that there is a significantly elevated acid-generating and metals-release potential <br />for waste rock at the site. <br />In the past, the Division has judged that sulfides in excess of 0.5 volume percent may be sufficient <br />to warrant protection of sulfidic rocks from weathering to prevent generation of acid rock drainage. <br />CC&V's summary indicates that sulfur exceeds these amounts in some samples, and thus must be <br />assumed to be capable of generating acid and dissolving metals. <br />From the summary presented, it could be concluded that the storage of waste rock in unlined, <br />uncapped or otherwise unprotected areas will lead to the generation of acid and dissolved metals. <br />cc: Bruce Humphries <br />Jim Stevens <br />Jim Pendleton <br />M:\M1MHI-IP\SULFUR. CC V <br />
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