2. presented to CASE, June 15, 2013

3. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

4. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

6. October 2011 October 2010 June 2013

7. RESERVOIR CONSERVATION STORAGE DATA Storage for May 29, 2013: 20.944 Million acre-ft (66.5%) Conservation capacity: 31.518 Million acre-ft +0.5% from last week ( )

9. Reservoir storage in Austin Area Buchanan: 41% full Georgetown: 60% Stillhouse Hollow: 81% Travis: 37%

10. ring ring!

11. tree rings

12. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

13. ? efficiency conservation restriction

14. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

16. Thirsty cat is Thirsty

17. HISTORIC AND PROJECTED TEXAS POPULATION GROWTH 17

18. Are we ready for the next drought? Demand for water Water we have now nope… Acre-feet

19. What can we do? data from the 2011 regional water plans summary Water Management Strategies for 2060

27. “It’s the right thing to do.” -Wilford Brimley

29. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

30. Alliance for Water Efficiency

31. Water conservation plans Saved 220,000 acre-feet 407,000 meters 130,000 leaks fixed 71.5 billion gallons replaced or repaired ~5 percent of municipal use annual reports for 2010 that’s a lot of leaks!

32. outdoor use indoor use Texas residential water use 31% 69%

33. Water loss audits for 2010 16.8 percent loss 3.1 apparent 13.7 real

36. total per capita water use and residential per capita water use for the 40 largest cities in Texas from 2012 State Water Plan, p. 138

39. state water plan acre-feet of water municipal conservation agricultural conservation reuse

40. outline Mother Nature’s wakeup call… What is water conservation? Why conserve? How are we doing? The future…

41. Water in the future… The cost of water will go up Water conservation will become more important – Landscape watering – Water loss – Efficient fixtures Water reuse will increase Other sources of water (desal) will become more economically viable Transfers from agriculture to municipal use

43. Richland-Chambers Engineered Wetland Tarrant Regional Water District

46. Water loss

47. 33 million gallons a year

49. How low can you go? Currently folks use 40 to 50 gallons per capita daily indoors Indoor use in a new home is ~35 gallons per capita daily Vision 2020 for indoor use: goal of 20 gallons per capita daily

51. cubist toilets

52. How low can you go? Vision 2020 goal for toilets: 1.28 gallons per flush (ours = 1.1 gallons per flush [average]) Vision 2020 goal for showerheads: 2 gallons per minute (ours = 2 gallons per minute; current = 1.5 gallons per minute) Vision 2020 goal for dishwashers: 5 gallons (ours = 2.95 gallons) Vision 2020 goal for washing machines: 4.5 gallons (front loader) (ours = 2.6 gallons)

54. gallons of water maximum volume of tank(s) year Robert’s awesome rainwater system

55. gallons of water maximum volume of tank(s) year Robert’s mega-awesome rainwater system

57. conclusions Been dry; improvement coming? Conservation = using less water Many reasons to conserve water We’re doing pretty good! but we can do more… theoretically a lot more. and remember:

58. presented to CASE, June 15, 2013 Questions? Robert E. Mace, Ph.D., P.G. Texas Water Development Board (512)936-0861 robert.mace@twdb.texas.gov www.linkedin.com/in/robertemace