CONSTRUCTIO$ QUALITY ASSURANCE ON-SITE- DISPOSAL ...

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PROJECT:
ON-SITE DISPOSAL FACILITY (OSDF)
LOCATION: FERNALD, OHIO PROJECT NO:GQ1341 TASK NO: 04
DESCRIPTION: PHASE II CONSTRUCTION WEEK ENDING: 08 APRIL 2661
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WEEKLY REPORT NO. 190
The report period covered by Weekly Report No. 190 is from Monday, 2 April 2001 through
Sunday, 8 April 2001. The Resident Engineer’s Weekly Report and the Construction Quality
Control (CQC) Consultant’s Weekly Report are combined into one report for the: (i) On-Site
Disposal Facility (OSDF) Phase II and Phase III projects; and (ii) Enhanced Permanent
Leachate Transmission System (EPLTS) project. During the period, there was 0.4 inches of
precipitation recorded.
Construction Progress
OSDF Phase 11
I
No fieldwork activities.
OSDF Phase 111
IT Corporation (IT), the Phase I11 Cell 1 Cover Construction Contractor continued providing
submittals for the construction work.
Fluor Femald continued to receive riprap (Type D Dumped Rock fill) and No. 78 stone for the
Cell 1 cover drainage layer.
IT began Phase I11 construction on 4 April 2001 with the placement of two reinforced concrete
pipe (RCP) culverts along the borrow area haul road for storm water runoff control. An access
ramp into Cell 1 was completed and the first lift of non-impacted contouring layer was started
during the report period.
EPLTS
The STAVER Group, Inc. (STAVER) placed compacted fill around Valve House 6 (VH-6). The
Leachate Detection System (LDS) pipeline from Cell 1 was cut at the tie-in point for Manhole
No. 1 (MH-1). A series of pneumatic pressure tests were run on the existing LDS carrier and
containment pipes of the LDS line into Cell 1 as required by the project specifications. The tests
resulted in a loss of pressure; however, no visible leaks were detected from the test gauge or the