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Slide 2 presented to CASE, June 15, 2013 Slide 3 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 4 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 5 Slide 6 October 2011 October 2010 June 2013 Slide 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 ( ) Slide 8 Slide 9 Reservoir storage in Austin Area Buchanan: 41% full Georgetown: 60% Stillhouse Hollow: 81% Travis: 37% Slide 10 ring ring! Slide 11 tree rings Slide 12 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 13 ? efficiency conservation restriction Slide 14 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 15 Slide 16 Thirsty cat is Thirsty Slide 17 HISTORIC AND PROJECTED TEXAS POPULATION GROWTH 17 Slide 18 Are we ready for the next drought? Demand for water Water we have now nope Acre-feet Slide 19 What can we do? data from the 2011 regional water plans summary Water Management Strategies for 2060 Slide 20 Slide 21 Slide 22 Slide 23 Slide 24 Slide 25 Slide 26 Slide 27 Its the right thing to do. -Wilford Brimley Slide 28 Slide 29 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 30 Alliance for Water Efficiency Slide 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 thats a lot of leaks! Slide 32 outdoor use indoor use Texas residential water use 31% 69% Slide 33 Water loss audits for 2010 16.8 percent loss 3.1 apparent 13.7 real Slide 34 Slide 35 Slide 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 Slide 37 Slide 38 Slide 39 state water plan acre-feet of water municipal conservation agricultural conservation reuse Slide 40 outline Mother Natures wakeup call What is water conservation? Why conserve? How are we doing? The future Slide 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 Slide 42 Slide 43 Richland-Chambers Engineered Wetland Tarrant Regional Water District Slide 44 Slide 45 Slide 46 Water loss Slide 47 33 million gallons a year Slide 48 Slide 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 Slide 50 Slide 51 cubist toilets Slide 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) Slide 53 Slide 54 gallons of water maximum volume of tank(s) year Roberts awesome rainwater system Slide 55 gallons of water maximum volume of tank(s) year Roberts mega-awesome rainwater system Slide 56 Slide 57 conclusions Been dry; improvement coming? Conservation = using less water Many reasons to conserve water Were doing pretty good! but we can do more theoretically a lot more. and remember: Slide 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