Edward's Aquifer is a vital underground water source located in central Texas, primarily supplying drinking water to the city of San Antonio and surrounding areas. This aquifer is composed of porous limestone, which allows water to flow and be stored efficiently. It plays a crucial role in supporting local ecosystems and providing water for agriculture and industry. The aquifer is recharged by rainfall and surface water, making its health dependent on weather patterns and land use. Conservation efforts are essential to protect this resource from pollution and over-extraction, ensuring a sustainable water supply for future generations.