The purpose of this standard is to provide the minimum requirements for geomembrane lining and floating-cover materials for potable water storage, including minimum requirements for materials, fabrication, and installation and quality assurance. This standard can be referenced in specifications for purchasing, fabricating, and installing geomembrane lining and floating cover materials for potable water applications. The stipulations of this standard apply when this document has been referenced to geomembrane lining and floating cover materials for potable water storage.