The relentless growth of the global population over successive decades has placed a significant strain on the demand for food and potable water resources, necessitating a more efficient approach to water storage reservoirs. As the prevalence of drought intensifies, it becomes imperative to address the inherent challenges associated with traditional reservoir construction, which often includes soil with inadequate waterproofing capabilities and concrete sections susceptible to seepage through cracking within a relatively short span. This article explores the viability of geosynthetic lining as a sustainable solution for reservoirs. The selection of a suitable material is crucial, requiring characteristics that facilitate efficient installation across diverse weather conditions, cost competitiveness, and resilience to weathering when left exposed, all while allowing for easy maintenance. The bituminous geomembrane (BGM) emerges as a noteworthy option, boasting a low thermal expansion coefficient, a density greater than 1 kg/m3, and a proven track record of longevity when exposed. Its flexibility and bituminous properties enable smooth connections to various surfaces.