Where does faucet water come from?

The water you get from your faucet can come from two places - from the water in lakes or rivers (surface water), or from water that comes from wells (groundwater). Many people in this area who live in large cities or towns get their water for drinking from lakes and rivers. But, most people in the United States get their drinking water from groundwater.

from: http://www.epa.gov/region7/kids/drnk_b.htm