1.3  How water gets to people living in towns

We obtain the water we use from three basic sources: groundwater, surface water and rainwater. Groundwater includes all water that is found underground within the rocks. Surface water means water in rivers, lakes, pools and ponds. Rainwater replenishes both groundwater and surface water, and can also be collected directly. These sources are discussed further in Study Session 3. For the purpose of this introductory study session, here is a brief summary.