2014-10-22_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 10/22/2014
• Doc Name: Weekly CQA Report: Week ending 10/11/14.
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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C) Geomembrane:
PSSA
Primary 100-mil DSMS(double sided microspike) LLDPE Liner Installation
ECA completed 100-mil LLDPE smooth geomembrane installation in the PSSA. No additions!
Panels were deployed during this reporting period, as all primary liner was completely installed
during the previous week. Only QA/QC and repair work occurred. Quality control was performed
using two extrusion guns. All seams were fusion welded per project technical specifications. All
work performed was observed by AM EC QA personnel.
Destruct samples PDF-144 through PDF-155 were tested and passed per project technical
specifications.
See the attached Primary Liner Map for accepted primary liner.
Secondary 100-mil SSMS LLDPE Liner Installation
Complete.
Phase 1 80-mil DSMS LLDPE Liner Installation
ECA began installation of 80-mil DSMS LLDPE Liner on the east slope from 9,550 foot bench
down to the 9,450 foot bench. Panels P-1 through P-10 were deployed on approved soil liner fill
material. Five full rolls of 80-mil LLDPE DSMS geomembrane were deployed yielding 1,316
lineal feet of fusion welds and 135 lineal feet of extrusion weld for an approximate installed
weekly total of 33,503 square feet. All seams were welded per project technical specifications.
All work performed was observed by AMEC QA personnel.
DF-1 through DF-3 and DX-1 were marked but not tested.
Approximately 135 lineal feet of anchor trench was backfilled over primary liner at 9,550 foot
bench and compacted per project specifications.
D) Low Volume Solution Collection Fill(LVSCF):
PSSA
The following LVSCF areas in the PSSA were placed to finished grade per project specifications,
inspected, and accepted for primary geomembrane placement
All areas within the PSSA have been accepted primary geomembrane placement. LVSCF
finished and accepted grade is considered complete by the end of this reporting period.
See the attached LVSCF map for all placement and accepted locations for primary geomembrane
deployment.
E) Drain Cover Fill (DCF)—Day and Night Shift:
Ames crusher operations continued drain cover fill production.
Light readings during the Night Shift ranged between 2.7 to 3.5 foot candles.
Cat 740 trucks hauled drain cover fill to the PSSA. Haul roads for the Cat 740s were maintained
at least 4 feet above the secondary geomembrane.
Drain cover fill was placed on accepted primary liner in minimum 2-foot lifts in the PSSA on
panels P1 to P4; P7 to P10; P13 to P15; P18 to P20; P67 to P68; P80 to P84; P87; P194 to
P198; P237 to P239; P241 to P243; P246 to P249; P271 to P273; P277; P280; P282; P284;
2014 10 11-MLE2 WEEKLY FINAL Page 3 c 8