2009-07-15_REVISION - M1980244 ‎(28)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 7/15/2009
• Doc Name: LOB Relocate- Appendix C- Weekly Reports
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

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Earth & Environmental
2. LOB Delivery Road
Overburden shot rock this past week between Stations 25+50 (+/-) and 30+00(+/-)
and between Stations 2+00(+/-) and 4+00(+/-) has been transported to the Joe
Dandy Main Cresson backfill using 5 Cat 777, and 3 to 7 Volvo Haul Trucks, a
Komatsu 800 excavator, and a CAT 875 track excavator aided by a Cat D-10
dozer. (Double shift work)
Rockbreakers has continued drilling the LOB Delivery Road cut between Stations
25+50 (+/-) to 22+50 (+/-) and 20+50 (+/-) to 22+00 (-F/-) for blasting. The
aforementioned areas this past Tuesday, Wednesday and Friday were shot.
Rockbreakers has been working double shifts. Four track drill rigs are working.
3. LOB Conveyor Corridor
No overburden rock transported to the Joe Dandy Main Cresson backfill.
D. Cut to Fill
1. LOB Pad
Work is complete.
2. LOB Delivery Road
Overburden shot rock between stations 30+00 (+/-) and 29+00 (+/-) transported
with two Volvo haul trucks to the LOB Delivery road fill section between stations
36+00 (+/-) and 40+00 (+/-) early in the week. By Tuesday, the fill was
completed. Additional equipment working the fill: 1 D-8 Dozer, 2 D-6 Dozers,
one Komatsu 800 track excavator, and one smooth drum vibratory roller. Fill
placement by method specification as outlined in the Project Documents.
3. LOB Conveyor Corridor
Rockbreakers completed drilling blasting pattern at cut area at conveyor transfer
station 5. Cut area has not been shot yet.
E. Subgrade Preparation
1. LOB Pad Soil Liner Fill (SLF)
Completed the SLF and fine grading the LOB Pad on. Wednesday AM in
preparation for the Geomembrane. Field densities taken by Nuclear Methods
(ASTM D-2922 & 3017) are passing with tests > 95% of Standard Proctor
(ASTM D-698). Water contents are averaging about 1% to 2% over optimum.
Depth checks to verify clay thickness were taken and recorded on the SLF.
Depths measured meet or exceed the project specifications. All depth check holes
were filled with a mixture of bentonite and water.
2. LOB Conveyor Corridor
Conveyor Alignment 1, Station 0+00: Repairs to the Geomembrane have been
completed, tested and recorded on Phase IV pad. 2-feet of drain cover fill was
placed on the Geomembrane completing the work. 2-feet of select structural fill
placed and compacted to the bottom elevation of the planned footing. In place
densities by Nuclear Methods (ASTM D-2922 & 3017) indicated tests were
Sheet 2 of 11
LOB Weekly Report WE 04.18.09.D