2014-03-28_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 3/28/2014
• Doc Name: Weekly construction quality assurance report week ending 3/22/14
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

Twi I M-le
Cat dozers cut the slope to rough grade near between stations A4 +00 to A6 +00, 610 +00 to B12 +00, F8 +00 to
F10 +00, and DD6 +00 to DD16 +00.
A John Deere 870 excavator loaded 740 haul trucks with shot rock from STA C6 +00. The material was transported
to the rip rap plant for processing.
A John Deere 870 excavator loaded 740 haul trucks with clay rejects. This material was transported for use as
structural fill between STA H28 +00 to H30 +00. The structural fill was placed and compacted per method
specification.
Note: An AMEC field professional monitored structural fill material temperatures placed within fill areas. Average
structural fill temperatures were above 32 °F.
Clay (SLF) Processing:
Cameron Site: No clay mining or processing occurred at the Cameron Site. Approximately, 244,860 tons of clay 1
soil liner fill (SLF) material have been produced at the Cameron site. SLF produced from the operation remains
stockpiled at Cameron Site for future use.
Squaw Gulch Clay Borrow Site: Clay mining and processing took place at the Squaw Gulch Clay Borrow Site.
Approximately, 94,417 tons of soil liner fill material has been produced at the Squaw Gulch Clay Borrow Site to
date.
Underdrain System:
Secondary Underdrain: A Cat 320 excavator completed the tie -in to the previously constructed portion of
secondary underdrain near STA H2 +00. The underdrain was continued upslope approximately 100 feet.
Installation followed project specification. Construction of secondary underdrain is not complete in this area.
Primary Underdrain: A Cat 320 excavator reworked the underdrain trench between STA 14 +00 and 15 +00 to tie it
together.
Tree /Slash Grubbing and Clearing, Chipping:
No clearing or grubbing occurred.
B) Underground Workings
UG #6153: Previously filled with coarse shaft backfill; however, a cave -in occurred, requiring additional material to
be placed into the working. A Cat 330 excavator was used to fill the underground working with coarse shaft backfill.
Four (4) Cat 740 haul truck loads; 96 yd' of coarse shaft backfill material, was placed into the working. Backfill not
complete; remediation efforts to be continued.
UG #6274: Blasting of previously drilled underground working.
n) Storm Water Management
Best Management Practices (BMP) is being performed. Erosion control efforts took place during this reporting
period following any precipitation (snow removal and runoff from melting snow and ice).
Page 2 of 6 MLF.2 WF 22 March 2014.doc