ETL 1110-1-163
30 Jun 96
Is the slurry wall align-
b. S-B slurry wall design.
ment clearly shown on
(1) General.
the drawings?
Y__N__N/A__
Do the contract documents
Is there an adequate
adequately specify material
aquiclude which the slurry
and installation require-
wall will key into?
Y__N__N/A__
ments? See guide spec-
ification CEGS-02444.
Y__N__N/A__
Is the depth of the slurry
wall clearly shown on
(2) Pre-design issues.
the drawings?
Y__N__N/A__
Have borings been taken
Is the wall thickness
along the proposed align-
a minimum of 900 mm
ment of the slurry wall?
Y__N__N/A__
(36 in.)?
Y__N__N/A__
Have adequate borrow
Is a work platform needed
sources been identified?
Y__N__N/A__
due to the slope of the
ground surface (2 per-
Do the specifications
cent max slope)?
Y__N__N/A__
require all borrow mater-
ials be tested for
Is the work platform at
Y__N__N/A__
least 12 m (40 ft)
wide?
Y__N__N/A__
(3) Compatibility/optimization testing.
Has trench stability
Have several types of
been considered dur-
bentonite been obtained?
Y__N__N/A__
ing design?
Y__N__N/A__
Has an adequate supply
Is the site layout area
(40 L (10 gal) each) of
adequate for contractor
groundwater and tap water
staging, material, and
been obtained for the com-
equipment storage?
Y__N__N/A__
patibility testing?
Y__N__N/A__
Are stockpile locations
Has an adequate supply
shown on the drawings?
Y__N__N/A__
(50 Kg (100 lbs)) of back-
fill material been collected?
Y__N__N/A__
Has a clay plug over the
completed wall been ade-
Is the proposed testing pro-
quately designed?
Y__N__N/A__
gram adequate to optimize
the mix design and deter-
Have equipment crossing
mine the compatibility of
zones been adequately
the backfill mixture with
designed?
Y__N__N/A__
the contaminants present
at the site?
Y__N__N/A__
(5) Construction quality control.
(4) Geotechnical design.
Are Contractor qualifica-
tions outlined in the
Does the slurry wall align-
specifications?
Y__N__N/A__
ment adequately surround
the contaminated ground-
water plume or hot spot?
Y__N__N/A__
C-2
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