2014-10-07_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 10/7/2014
• Doc Name: Weekly CQA Report: Week ending 09/20/14.
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

ameO
Subgrade:
Two dozers continued slope grading the subgrade downslope of Bench DID between stations
DD1+00 to DD5+00 in the Phase 1 area while a Cat hammer hoe broke oversized rock in the
subgrade surface. The finished subgrade in this area was compacted with a smooth drum roller.
The subgrade was certified for SLF placement from Bench B to 10 feet upslope of to Bench B
between approximate stations BO+00 to 88+00.
See the attached figure of approved subgrade in Phase 1.
Soil Liner Fill:
Cat 777 haul trucks transported SLF from the Cameron stockpile to a location below Bench F
between stations FO+00 to F10+00 in the Phase 1 area on approved subgrade where it was
stockpiled for future use.
Soil liner fill (SLF)was transported from the Phase 1 stockpile located below Bench F between
stations FO+00 to F10+00 and was placed along Bench DID from stations DD4+00 to DD10+00
and upslope between stations B2+00 to B8+00. Some of the SLF was used to form a temporary
road to Bench B from Bench DD,
Low Volume Solution Collection Fill:
The following low volume solution collection fill (LVSCF) areas in the PSSA were placed to
finished grade per project specifications, inspected, and approved for primary geomembrane
placement:
From the ADR road to central PSSA floor and western slopes.
See the attached LVSCF map for all placement and accepted locations for primary geomembrane
deployment.
SLF Processing:
Cameron Site: No SLF mining or processing occurred at the Cameron Site. However, Ames
continued transporting the Cameron stockpiled SLF to a new stockpile located below Bench F
between stations FO+00 to F10+00 in the Phase 1 area. The processing equipment remains at
the Cameron site.
Underdrain System:
Primary Underdrain: Complete.
Secondary Underdrain: No work was performed during this reporting period.
Tertiary Underdrain: Complete within the PSSA footprint.
B) Underground Workings:
Confirmatory drilling occurred at underground working and UG#6313. Additional remediation is
required.
Working UG#6576 was drilled, blasted, and requires further remediation.
Working UG#6200 and were excavated to competent rock, backfilled per project specifications,
and is considered remediated.
Shot rock was excavated from working UG#6639 and it was partially backfilled for safety.
Further remediation is required.
2014 09 20-MLE2 WEEKLY FINAL Page 2 of 7