Freshwater Resources Chapter 4, Lesson 3
Where do we get our water from? Running water Standing water Reservoirs: man-made lakes used to store water. made by dams. Groundwater Running water Standing water Reservoirs: man-made lakes used to store water. made by dams. Groundwater
Aquifer
Watershed Area of land that drains into a specific river California has 10 major watersheds Flooding can damage a watershed Area of land that drains into a specific river California has 10 major watersheds Flooding can damage a watershed
Watersheds It is important to NOT disturb watersheds BECAUSE: Supplies groundwater Replaces water Refill sources of water It is important to NOT disturb watersheds BECAUSE: Supplies groundwater Replaces water Refill sources of water
What Causes Polluted Water? Contaminated water Water can get contaminated by rain and land Contaminated water Water can get contaminated by rain and land
Laws That Protect Freshwater Resources 2 Laws: Safe Drinking Water Act Clean Water Act 2 Laws: Safe Drinking Water Act Clean Water Act
How are Fresh Water Resources Cleaned? The water that flows to houses and businesses is treated in a water treatment plant.
Steps of Freshwater Treatment Coagulation Sedimentation Filtration DisinfectionStorage