2012-10-17_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 10/17/2012
• Doc Name: CQA REPORT 10/13/2012
• From: CC&V
• To: DRMS
• Type & Sequence: AM10
• Email Name: TC1
• Media Type: D
• Archive: No

•
C) Slope Contouring
No work performed during the week.
D) Soil Liner Fill (SLF)
Soil liner fill (SLF) placement was performed in the areas shown on Figure 3. Subgrade was
approved and moisture conditioned prior to placement using a tandem -axle water truck.
Placement was performed using various CAT dozers and a John Deere 120 excavator in a one -
foot compacted lift. SLF material was hauled to the Mill Platform from the temporary SLF stockpile
previously located from the East Cresson stockpile using CAT 40 -ton articulating haul trucks
loaded by a CAT 988 front -end loader. Moisture conditioning of SLF material was performed in
place using a tandem -axle water truck and compaction was achieved using a 10 -ton vibratory
smooth drum compactor. Nuclear density testing, moisture verification, and depth check testing
was performed with results within project specifications. Test locations were surveyed by Ames.
Subgrade temperatures were monitored by an AMEC field representative prior to SLF placement.
Fill material was not placed until the entire fill area was at or above 32 °F. SLF placed during
ambient temperatures below 32 °F averaged 42 °F to 51 °F.
Location
This Week
Cumulative
Comments
(tons)
(tons)
E.Cresson Clay Process
0
81,150
SLF processing is temporarily paused
Total
0
81,510
SLF processing is temporarily paused
E) Drain Cover Fill (DCF)
Drain cover fill (DCF) placement performed in the area shown on Figure 6. The DCF was hauled
from the processing area to the placement area using 40 -ton articulating haul trucks loaded by a
CAT 988 front -end loader. The DCF was placed in a 2 -foot lift using various CAT dozers except
where haul routes were established. Haul routes consisted of four -foot lifts to be spread into 2-
foot lifts later. Laborers were present at all times during placement removing debris /sandbags and
assisting the dozer operator with lift thickness. All DCF was placed on previously approved
primary geomembrane. Fill material placed during ambient temperatures below 32 °F averaged
42 °F. AMEC field representatives monitored the DCF placement constantly.
Location
This Week
Cumulative
Comments
DCF Process
0
228,613
DCF processing is temporarily paused
Total
0
228,613
DCF processing is temporarily paused
F) Miscellaneous
No work performed during the week.
II) Geosynthetics
A) Geomembrane Delivery
Geomembrane delivery is complete for the Mill Site Earthworks project.
MEW Weekly Report WE 10. 13.2012