_GENERAL DOCUMENTS - M1988112

• Permit No: M1988112
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Name: Monitoring Requirement Summary
• Media Type: D
• Archive: No

2.2 i s osal Area and E—mb
��� ankmenL System
During operations, the settlement sensors will be checked on
a monthly basis and adjustments, if required,
will be made on the basis of the on- q �n subsequent lifts
going monitoring program.
p Monitoring will include quarterly sampling of tailin
gs- to
determine gradations, in-place densities, and deposition angles.
Density control tests will
be
=� performed on the tailings sand
r — deposited in the disposal area to verify that deposition obtains the
required density. After a trend has been established in the to deposition testing, BMR will submitdings
_ Division showing the trends and requesting technical al revision to the
• required monitoring, reduction in the
Following establishment of a beach of tailings upstream of the
embankment and prior to construction of subsequent embankment raise
a specific study of tailings affected by the raises will be
performed. This study will include a determination of inplace
density, degree of saturation and material gradation for evaluation
of the structural integrity of the tailings under static and seismic
induced loading. "
1
Monitoring of the flow site and quarterly sampling of the
seepage from the drain system at the base of the tailings will be
performed. A plot of the rate of seepage over time will be
maintained and compared to the predicted rate. Chemical analysis
of the collection pond seepage on a
quarterly basis parameters identified in Table G.I-2 of the approved permit fwill
r the
performed. In addition, the leak detection system of the collection
Pond will be monitored for any water weekly during initial
start-up and monthly thereafter. six month
2.3 Mass and Water Balance Moniterino
1 Each of the elements used in the evaluation of the mass and
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