ETL 1110-1-162
30 Sep 01
Is the hydraulic conductivity of the drainage material greater
than 1 102 cm/s (ft/s)?
Y__N__N/A__
Does the granular drainage layer have a minimum thickness
of 300 mm (12 in.)?
Y__N__N/A__
Is the final slope, after allowance for settlement and
subsidence, greater than 3%?
Y__N__N/A__
i. Collection Transportation System .
Are drainage pipes sized and have adequate perforations
to collect drainage?
Y__N__N/A__
Do the drainage layer collection points freely drain into
perimeter ditches or natural drainage swales?
Y__N__N/A__
Are the outlets of the drainage pipes placed above the bottom
of the perimeter collection trench to prevent clogging?
Y__N__N/A__
j. Geomembrane.
Will a geomembrane be used at this site?
Y__N__N/A__
Have various material types been considered?
Y__N__N/A__
Does the membrane need to be textured?
Y__N__N/A__
Is the minimum allowable thickness 1.0 mm (40 mils)?
Y__N__N/A__
k . Low-permeability Clay Layer.
Will a clay layer be used at this site?
Y__N__N/A__
Is the entire clay layer designed so that it is below frost
depth?
Y__N__N/A__
Is the clay layer a minimum of 600 mm (2 ft) in thickness?
Y__N__N/A__
Has a clay borrow source been identified and tested?
Y__N__N/A__
C-7
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