2014-06-18_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 6/18/2014
• Doc Name: Weekly CQA Report- Weeks ending 05/31/14 and 6/7/14.
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

amec' ' ,
A Cat excavator began anchor trench excavation on the 9,450 elevation between stations AO+00
to A4+50.
SLF Processing:
Cameron Site: No soil liner fill mining or processing occurred at the Cameron Site.
Approximately 244,860 tons of SLF material has been produced and remains stockpiled at the
Cameron Site for future use.
Squaw Gulch Borrow Site: Soil liner fill mining and processing was completed at the Squaw
Gulch Clay Borrow Site (the source was depleted). Approximately 143,198 tons of soil liner fill
material was produced. The soil liner fill processing equipment will be transferred back to the
Cameron site.
Underdrain System:
Primary Underdrain: Work was completed for the primary underdrain on May 23, 2014_
Secondary Underdrain: No work was performed on the secondary underdrain.
Tertiary Underdrain: Approximately 500 feet tertiary underdrain was completed on the eastern
slope of the PSSA below station B4+00.
B) Underground Workings
Confirmatory drilling was conducted at underground workings#6119 and#6260. Both sites will
be blasted and additional remediation is required.
Excavation at underground workings 96625 and#6627 began. Additional remediation is
required.
Underground workings#6559, #6564, #6573,#6574, #6575,#6608,#6622,#6623, #6624, and
#6626 were excavated to competent rock, backfilled according to project specifications, and are
considered remediated.
II) Storm Water Management
Best Management Practices(BMPs) are being performed.
CQA ACTIVITIES:
1) Field Activities: Field activities and observation during this reporting period included: Slope grading
and fill placement; underground working remediation and confirmatory drilling; production drilling and
blasting; SLF moisture content and density testing; sampling and testing of leak detection fill (LDF)for
quality control and quality assurance (QA and QC); sampling and testing of drain cover fill (DCF)for
QC, and sampling and testing of SLF material for QA and QC; subgrade certification in the PSSA;
SLF inspection and certification; and tertiary underdrain installation.
11) Laboratory Activities: Laboratory testing continued with permeability, particle size distribution,
Atterberg limits, moisture-density relationships, gradations, material classification, point load, specific
gravity, and field material sampling were performed during this reporting period.
The following samples were collected and returned to AMEC's laboratory for analysis:
Drain Cover Fill sample number DCF-85 and DCF-86 (control samples).
Soil Liner Fill sample numbers SLF 152-S through SLF-155-S (control samples).
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