1. Freshwater Resources Chapter 4, Lesson 3

2. 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

3. Aquifer

4. 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

6. 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

7. What Causes Polluted Water?  Contaminated water  Water can get contaminated by rain and land  Contaminated water  Water can get contaminated by rain and land

8. Laws That Protect Freshwater Resources  2 Laws: 1. 1974 Safe Drinking Water Act 2. 1977 Clean Water Act  2 Laws: 1. 1974 Safe Drinking Water Act 2. 1977 Clean Water Act

9. How are Fresh Water Resources Cleaned?  The water that flows to houses and businesses is treated in a water treatment plant.

10. Steps of Freshwater Treatment Coagulation Sedimentation Filtration DisinfectionStorage