REMEDIAL ACTION WORK PLAN OPERABLE UNIT 2, LANDFILL ...

PART 3 EXECUTION
3.1 INSTALLATION
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
3.1.7
Use deployment methods and equipment that do not damage the geomembrane or the
supporting subgrade surface.
Use deployment and installation methods that minimize wrinkles. Remove
geomembrane folds and fishmouths.
Use trained personnel to perform seaming operations using seaming equipment
specifically designed for that purpose.
Use double-wedge fusion welding as the primary welding procedure. Use extrusion
welding for repairs and detail work.
Perform fusion and extrusion welding in accordance with the Installer’s approved
CQC manual.
Installer is responsible for determining whether seaming should be restricted or halted
due to weather conditions. QA personnel will increase the frequency of testing in
adverse weather conditions. Failing test welds will be cause for rejection of panels
installed in adverse weather conditions.
Use the same type of resin for the extrusion rod as for the geomembrane.
3.2 FIELD QUALITY CONTROL
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
Test in accordance with Table 02271-1.
Installer is responsible for performing trial welds. QA personnel are responsible for
documentation during peel testing.
Produce and test trial welds at least once every five hours. Perform additional tests
in case of inclement weather, or at the direction of QA personnel. Installer is
responsible for performing non-destructive tests. The QA personnel will observe and
log results of these tests.
Non-destructively air pressure test fusion welds over the entire length of the seam.
See Installer’s approved CQC manual for procedure.
Non-destructively test extrusion welds over the entire length of the seam using the
vacuum box method of testing. See Installer’s approved CQC manual for procedure.
SJ/5-14-96/SACTERUlTORDOU2/02271 02271-7 Geomembrane