2014-03-05_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 3/5/2014
• Doc Name: Weekly construction quality assurance report week ending 2/22/14
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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A John Deere excavator and Cat 740 haul trucks were used to cut the slope and remove material near stations
A0 +00 to A4 +00. A Cat 345 excavator and Cat 740 haul trucks were also used to remove material from the PSSA
floor. The material from both locations was used as structural fill at the PSSA embankment area. The structural fill
was placed using a dozer and compacted with a smooth drum roller according to project specification.
A Cat D10 dozer was ripping and mixing the existing structural fill on the ADR haul route from approximate stations
0 +50 to 2 +00. Previously stockpiled structural fill was pushed downslope and placed on the haul route surface in
18 -24 -inch loose lifts. The structural fill was placed and compacted per project specification.
A John Deere 870 excavator and Cat 740 haul trucks were used to cut and remove material located at the Phase 2
Diversion Channel near stations 14 +00 to 15 +50. The material was placed as structural fill below stations 31 +00 to
32 +00 at the Dump 4 toe. The structural fill was placed and compacted per project specification.
Dozers were placing fill near stations H28 +00 to H30 +00 in approximately 36 -inch lifts. The material came from
overbuilt structural fill removed from the slopes of the buttress fill area. The structural fill was placed and compacted
according to the project 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 later removal and use.
Squaw Gulch Clay Borrow Site: Clay mining and processing took place at the Squaw Gulch Clay Borrow Site.
Approximately, 68,873 tons of soil liner fill material has been produced at the Squaw Gulch Clay Borrow Site to
date.
By Saturday, February 22, 2014, all the clay till from the bottom portion of the Squaw Gulch clay borrow area had
been processed and Ames began moving the processing plant to the upper portion of the clay borrow.
Underdrain System:
Secondary Underdrain: Approximately, 200 feet on secondary underdrain was installed adjacent to Dump 4 and
about 100 feet of trench was excavated for secondary underdrain below ADR haul road station 23 +00
Approximately, 5,334 feet of secondary underdrain has been completed to date in the VLF.
Primary Underdrain: No work occurred on the primary underdrain.
To date, approximately 1,755 feet of primary underdrain has been completed.
Tree /Slash Grubbing and Clearing, Chipping:
No clearing or grubbing occurred.
B) Underground Workings
Confirmation drilling was completed at underground working #U6428 and the borings were surveyed. Additional
remediation work will be required.
Underground workings UG 46033, UG #6324, UG #6325, UG 46326, UG # 6398, UG 46437, and UG #6438 were
excavated to competent rock, backfilled and are considered remediated.
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