As liners for potable water As liners for reserve water (e.g., safe shutdown of nuclear facilities) As liners for waste liquids (e.g., sewage sludge) Liners for radioactive or hazardous waste liquid As liners for secondary containment of underground storage tanks As liners for solar ponds As liners for brine solutions As liners for the agriculture industry As liners for the aquiculture industry, such as fish/shrimp pond As liners for golf course water holes and sand bunkers As liners for all types of decorative and architectural ponds As liners for water conveyance canals As liners for various waste conveyance canals As liners for primary, secondary, and/or tertiary solid-waste landfills and waste piles As liners for heap leach pads As covers (caps) for solid-waste landfills As covers for aerobic and anaerobic manure digesters in the agriculture industry As covers for power plant coal ash As liners for vertical walls: single or double with leak detection As cutoffs within zoned earth dams for seepage control As linings for emergency spillways As waterproofing liners within tunnels and pipelines As waterproof facing of earth and rockfill dams As waterproof facing for roller compacted concrete dams As waterproof facing for masonry and concrete dams Within cofferdams for seepage control As floating reservoirs for seepage control As floating reservoir covers for preventing pollution To contain and transport liquids in trucks To contain and transport potable water and other liquids in the ocean As a barrier to odors from landfills As a barrier to vapors (radon, hydrocarbons, etc.) beneath buildings To control expansive soils To control frost-susceptible soils To shield sinkhole-susceptible areas from flowing water To prevent infiltration of water in sensitive areas To form barrier tubes as dams To face structural supports as temporary cofferdams To conduct water flow into preferred paths Beneath highways to prevent pollution from deicing salts Beneath and adjacent to highways to capture hazardous liquid spills As containment structures for temporary surcharges To aid in establishing uniformity of subsurface compressibility and subsidence Beneath asphalt overlays as a waterproofing layer To contain seepage losses in existing above-ground tanks As flexible forms where loss of material cannot be allowed.