2. WATER

4. Pure water has no smell or taste Pure water has no smell or taste It is possible that humans are drinking water that a dinosaur once drank It is possible that humans are drinking water that a dinosaur once drank Humans can only live a week without water Humans can only live a week without water 66% of the human body is water 66% of the human body is water

5. Chicken 75% Water Tomato 95% Water Human 66% Water

6. How much Water exists? Less than 1% of all of the Earth’s water is available to us!

7. How much Water exists? Estimated Total: 3,700,000,000,000,000,000,000 gallons Estimated Total: 3,700,000,000,000,000,000,000 gallons Water covers 70% of Earth’s surface Water covers 70% of Earth’s surface ALL WATER ORIGINATED BILLIONS OF YEAR AGO During the formation of Earth During the formation of Earth From comet and meteor impact From comet and meteor impact

8. Sources For human use Surface Water 66% Ground Water 19% Saline Water 14% Most salt water sources are not used for drinking water. IT’S TOO EXPENSIVE

9. From Source to you Community SystemsOther

10. LA WATER SOURCES Founding Los Angeles River Los Angeles River 1910s - 1920s Owens Valley Owens Valley 1930s - 1940s Colorado River Colorado River Feather River Feather River Mono Lake Mono Lake

11. NYC WATER SOURCES Founding Shallow wells Shallow wells 1840s - 1890s Croton Watershed Croton Watershed 1900s - 1920s C atskill Watershed C atskill Watershed 1930s - 1960s Delaware Watershed Delaware Watershed

12. Water Treatment - Part 1 COAGULATION SEDIMENTATION FILTRATION DISINFECTION & STORAGE

13. Water Treatment - Part 2

14. Waste water Treatment

15. How much Water exists? Estimated total of 3,700,000,000,000,000,000,000 gallons EARTH WILL NOT RUN OUT OF WATER

16. How much Water exists? Problems will arise from uneven distribution of freshwater Water is not currently economically practical to transport

17. How much Water exists? CountryTotal Renewable Freshwater Supply (gal/yr) Brazil12,000,000,000,000,000 United States of America8,100,000,000,000,000 United Kingdom460,000,000,000,000 Saudi Arabia6,300,000,000,000 Djibouti790,000,000,000

18. How much Water IS USED? American Resident 100 gallons per day European Resident 50 gallons per day Sub-Saharan African Resident 5 gallons per day

19. How much Water IS USED?

20. Empire State Building (steel) 3.5 BILLION gal Automobile 39,090 gal Cotton Shirt 700 gal Beef (1 lb) 12,000 gal Chicken (1 lb) 500 gal Orange 13 gal

21. 21 st century challenges A growing demand for water A growing demand for water Poor water quality in many areas Poor water quality in many areas Inadequate water data collection and regulation Inadequate water data collection and regulation Instability of the water supply due to climate variability Instability of the water supply due to climate variability NEED TO REDUCE WATER DEMAND CANNOT SIMPLY INCREASE WATER SUPPLY

22. Importance of conserving Many uses of water do not have a viable substitute Many uses of water do not have a viable substitute Excessive human water use disrupts the ecosystem Excessive human water use disrupts the ecosystem Decline in biodiversity Decline in biodiversity Contamination of water sources Contamination of water sources

23. How to conserve water Personal Hygiene: Don’t leave the faucet running! Eat foods that require less water. It takes more than 1 million gallons of water per year to grow food for an American family. Repair your leaky faucets. 10 gallons per day are lost to leaky faucets in the average American home. Conserving Electricity and Gas is conserving Water! When you recycle a pound of paper, you save 3.5 gallons of water A washing machine uses half the water of washing dishes by hand.

24. How Well Do you know Your Water?

25. RANDOM WATER FACTS Water Sources and Treatment How we Use Water Water Conservation Water in Pop Culture

26. Your students can help a school receive clean water

27. Choose a partner today and go into action!