A generic construction quality assurance (CQA) plan for HDPE liners (for landfills, wastewater treatment plants, canals, etc.) has been prepared that, unlike those typically prepared by geotechnical and civil engineers, incorporates decades of materials science, polymer engineering, geomembrane field CQA, HOPE liner and pipe failure analysis, and liner leak location survey experience. Analysis of field performance problems clearly identifies installation practices that need careful attention. The contents of this CQA plan are outlined together with those items that need adding to make the plan project specific.
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