A reservoir is used to hold water until we need it. Maybe you've seen one of our reservoirs. They were in our Lee Hall Reservoir. Small streams and springs help keep our reservoirs full. Your drinking water also comes from rain and groundwater .
Rain also helps to keep our reservoirs full.
We also pump some water from underground wells. It comes from the Chickahominy River, groundwater, from rain that falls into our reservoirs and from streams and springs. The water on the earth today has been there for millions of years. It moves from the earth to the air and back to the earth again through a process called the Water Cycle . When you lay a wet towel outside in the hot sun, the towel dries because of evaporation .