Asking the Right Questions before Selecting your Geomembrane

Timothy D. Stark

August 8, 2025

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Top 10 Questions to Answer before Selecting your Geomembrane if No Details Available or They are Wrong:
- Can the geomembrane handle what is being contained?
- How long do you want to contain this liquid?
- What is the application and size of the geomembrane containment area? Is it a bottom liner or cover system?
- Will the geomembrane be exposed or unexposed to UV light?
- What is the location, i.e., temperature and site access?
- What are the applicable regulations for your containment system?
- Is your selected membrane type suitable for tight spaces, mechanical attachment, pipe boots and structures where the watertightness cannot be fully tested, nor guaranteed long term due to operational stress?
- Is site subgrade ready for geomembrane/geosynthetics installation?
- What are current conditions at the site? What are the pre-existing conditions?
- What is the timeframe for installation (Fall, Winter, Spring, or Summer)? What are the safety conditions for installation?

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