The use of geomembranes in the storage of potable water

Abstract

In the USA and Australia in particular, water authorities prefer geomembrane lined and covered earthen constructions over concrete and steel constructions because of a myriad of benefits across installation, environmental, and project cost criteria. Floating covers for water reservoirs obstruct sunlight, which prevents algae and reactive by-products from interfering with water taste and odor, prevent the evaporation of water and disinfectants, and prevent dilution from precipitation. In addition to technical background on geomembranes used for liners and covers, this paper compares the installation costs and carbon footprint for geomembrane lined and covered water reservoirs with concrete constructions.