2014-02-07_REPORT - M1980244 ‎(2)‎

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 2/7/2014
• Doc Name: Response to weekly CQA adequacy
• From: CC&V
• To: DRMS
• Email Name: TC1
• Email Name: TAK
• Media Type: D
• Archive: No

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Cat dozers graded the slopes downwards near station 06 +00 to Q12 +00 and stockpile shot rock near station
A6 +00.
A Cat 330 excavator was grading the Y2 to 1 slope on the northwest side of the PSSA area near stations A0 +00.
Clay (SLF) Processing:
Cameron Site: No Clay mining or processing occurred at the Cameron Site. Approximately, 244,860 tons of clay /
soil liner fill (SLF) material have been produced at the Cameron site. SLF produced from the operation remains
stockpiled at Cameron Site for later removal / use.
Squaw Gulch Clay Borrow Site: Clay processing took place at the Squaw Gulch Clay Borrow Site.
Approximately, 19,300 tons of soil liner fill material has been produced at the Squaw Gulch Clay Borrow Site to
date.
A John Deere 870 excavator was used to load Cat 777 haul trucks with clay till at the upper portions of the Squaw
Gulch Clay Borrow area. The till was transported to lower portion of the borrow area for processing.
Underdrain System:
Secondary Underdrain: Approximately, 200 feet of secondary underdrain was installed between stations C6 +00
and E11 +00 and 810 feet was installed in the Phase 2 diversion Channel area adjacent to Dump. Approximately, a
total of 5,064 feet of Secondary underdrain has been completed.
Primary Underdrain: No work was performed on the Primary underdrain during this reporting period. A total of
1,294.60 feet of Primary underdrain has been completed.
Tree /Slash Grubbing and Clearing, Chipping:
No clearing and grubbing occurred.
B) Underground Workings
Confirmatory drilling was performed on underground working No. U6397. All borehole locations were established
on a 4 -foot center isolating any voids found. Further remediation efforts will be ongoing until remediated. Summary
of the remediation efforts will follow when remediation is completed.
UG #6123 was blasted and the shot rock was removed from the working.
Two depressions were excavated at UG U6387 to competent rock at depths of 16 feet and 22 feet. The
depressions were backfilled using excavated material placed in 18 inch to 25 inch lifts that were compacted using
the excavator bucket.
C) Highway 67
No significant construction activities were observed at the Highway 67 Realignment.
South MSE Wall:
No significant activities occurred at the South MSE Wall; however, Ames worked on removing tailings and timbers
from the Crib Wall. The timbers will be used as the facade at the south MSE wall; the tailings were stockpiled for
later removal.
II) Storm Water Management
Best Management Practices (BMP) is being performed. Erosion control efforts took place during this reporting
period following any precipitation.
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