2010-01-29_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 1/29/2010
• Doc Name: Weekly Construction Quality Assurance ‎("CQA")‎ Reports- 1/3/2010 and 1/10/2010.
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Email Name: BMK
• Media Type: D
• Archive: No

ameO
Earth S Environmental
using a CAT D-10 dozer and a CAT D-9 dozer. Material generated as the cut progressed was
pushed down the slope.
E) Overburden to Stockpile
1) VLF
Oversize rock within the Phase 5 VLF fill area was removed from fill areas and hauled to the
overburden stockpile area east of the east perimeter road near stations A28+00 (+/-) to A36+00
F) Cut to Fill
1) VLF
A CAT 385 excavator and a John Deere 850 excavator were used to excavate structural fill
material from the following areas: between stations E 14+00 (+/-) and E 18+00 (+/-),
approximately 50 to 100 feet right of centerline; between stations H9+00 (+/-) and H13+00
(+/-), approximately 0 to 50 feet right of centerline; and between stations H24+00 (+/-) and
H26+00 (+/-), approximately 250 to 300 feet left of centerline. The structural fill material was
loaded into CAT 777 haul trucks.
Prior to structural fill placement existing fill areas were ripped and frost was allowed to thaw
or was removed. Existing fill temperature were monitored and found to be above 32°F before
fill placement. An AMEC representative monitored ambient temperatures on an hourly basis
during fill placement. Fill temperatures were monitored during ambient temperatures below
32°F and averaged 37°F to 41 T. On average, fill preparations were performed for one to one
and a half hours before fill temperatures were within project specification.
Structural fill was placed between stations B0+50 (+/-) and B7+00 (+/-), approximately 50 feet
left of centerline to 50 feet right of centerline and between stations C0+00 (+/-) and C5+00
(+/-), approximately 50 feet left of centerline to 50 feet right of centerline. Structural fill was
placed in 18" to 24" lifts using various CAT dozers. Each lift was moisture conditioned using a
CAT 773 water truck (when necessary) and compacted using a 10-ton vibratory smooth drum
compactor, passing over the entire fill surface at least 4 times (method compaction technique is
applicable). Ambient and fill temperatures were monitored and recorded during fill placement.
Blast pattern drilling was performed between stations E8+00 (+/-) and E14+00 (+/-),
approximately 30 feet left of centerline to 50 feet right of centerline. Blasting was performed in
these areas Thursday (1/14/2010) and Friday (1/15/2010).
G) Material Processing
1) South Cresson Clay Processing Area
Processing of Soil Liner Fill material continued at the South Cresson Clay Process. A CAT D-8
dozer, a CAT 320 excavator, and a CAT 966 front-end loader were used to process the material.
Location This Week
tons Cumulative Comments
So Cresson Clay Processing 8,516 173,277
Squaw Gulch Processing 0 35,816 Processing in area complete.
Total 8,516 205,186
VLF Weekly Report WE 01.16.10.D.doc