1. ‘Cuz THAT’S how we roll!

2. Two big ideas this unit: Water Supply Water Pollution

3. 5 Ways to increase water availability Build more dams Use more groundwater Transfer water Desalinate water Conserve water

4. -Ben Franklin

6. Drought – the new normal? 2011 – worst 12 month period of drought recorded in Texas history Agriculture - $5 billion lost Wildfires Reservoirs down to 60% of water storage levels More than 900 of the state’s 4700 water supply systems had water restrictions - data from Lone Star Sierran Fall-Winter 2011

7. Conservation success San Antonio – pumps no more water today than it did 20 years ago, despite the dramatic population increase in its service area in that same period of time! Thanks to conservation! San Antonio reduced its per capita use by more than 70 gallons.

8. 65-70% of water used is wasted in evaporation, leaks and other losses

11. Power plants use water to condense steam back to water which will be cycled through again

12. Agriculture

13. Pivot circles  are very wasteful – only 40% of water reaches plant roots

14. Water sensors

15. Water sensor on plant

16. Drip irrigation

17. What can you do directly?

18. Two sides to conservation Equipment Behaviors

19. Where should we focus our conservation efforts?

20. Aerating showers and faucets

21. Water saving toilets or “dual flush”

22. Make your own!

23. Watering the landscape

24. Xeriscaping

25. What about recycling water? “Grey water reuse”

26. Use water twice! Water from sink fills toilet tank to then flush toilet.

27. Even the Alamo uses grey water! Grey water is being used more in: Golf courses Sweeping streets Fighting fires Parks Amenity lakes

28. Current Texas water reuse 2% New technology cleans water to almost distilled quality Eventually, 10% of water demand will come from reuse in Texas

29. Tradeoffs! Reuse will divert more water from rivers. Less water downstream for people and wildlife Before: River  home  river After: River  home  land

30. What about the behaviors?

31. STUFF! How do the three R’s conserve water?

32. Check for understanding Why is conservation considered the easiest way to increase the amount of water available for use? What is the name of the wasteful agricultural irrigation system? Name a way to save water in agriculture. Name a way to save water at home. How are YOU responsible for the amount of water used in industry? What is grey water? How will you identify the downstream direction on a map?