Coal Ash Systems

Why Choose EPI PVC Geomembranes for Coal Ash Basin Closure?

Many coal plants have begun closing as society transitions to more environmentally-friendly energy options.

Under RCRA Subtitle D, over 500 blackwater and coal ash basins or impoundments are slated for closure in the United States. These coal ash basins will require stable geomembrane liners (basin liners or coal ash liners). The two main types of basins utilized for coal ash storage and ash management are dry storage basins and wet storage basins. The wet basins, however, are of the biggest concern when it comes to closure. The major end goal for the basin owners is water quality preservation, so it is vital that the correct geomembrane product is selected.

•  Proven track record of maintaining integrity under extreme conditions

•  Exceptional flexibility for 3-dimensional performance

•  Ability to fabricate large panels for up to 80% fewer field seams 

•  Long-term endurance

•  Customizable size and shape for panels

EPI's PVC fabricated geomembrane liners are single-ply construction featuring Polyvinyl Chloride as the main polymer. Only the first-quality virgin resins are utilized and each material meets or exceeds ASTM D7176 minimum requirements for materials and ASTM D7408 minimum specifications for seam strength.**

PVC Coal Ash Liners are fabricated by EPI in panel sizes up to 40,000 square feet, 

accordion-folded in both directions, and packaged for shipment to your site

for efficient and convenient installation to save you both time and money.

EPI employs statistical process control (SPC) to ensure the highest caliber and integrity of each ash containment panel (and every panel) we produce. EPI is unique in being the only fabricator to remove samples from actual factory seams during the welding process for a rigorous, proven first-hand testing procedure that assures you of the highest-quality factory-fabricated PVC coal ash containment geomembranes available.