1. John J. Entsminger, General Manager www.snwa.com Belts, Suspenders and Safety Pins: How America’s Driest City is Preparing for an Uncertain Future

2. Approximately: -8,000 square miles -2 million residents -40 million annual visitors -4 inches annual rainfall Southern Nevada: A Snapshot

3. Regional water supply planning Conservation programming Operate Major Regional Facilities Water Quality Facility construction What We Do: 3

4. Southern Nevada relies on Colorado River resources to meet 90 percent of its water demands.

5. Nevada receives 300,000 acre-feet of Colorado River water annually.

6. Beginning in 1999, the Colorado River Basin has been experiencing severe drought conditions.

7. January 2000Elevation: 1,214 ft. July 2010Elevation: 1,087 ft. The drought has had devastating impacts to Lake Mead’s water elevations.

8. 8 2015 20202040204520502055 2060 Ongoing, persistent drought projections anticipate that reservoir elevations will remain low. Elevation Probabilities

9. Access to water supplies Access lost at 1,000 feet – currently at 1,085 feet Compromised water quality Additional treatment costs Additional power costs New facility or facility upgrade costs Supplemental resource costs Loss of operational flexibility Note: Analysis done using Historical Hydrology only What does lowered Lake Mead elevations mean for Southern Nevada?

10. Lake Mead Intake Profile Intake 1 Intake 2

11. What We’re Doing: Reducing Demands Working with Colorado River partners Securing temporary and long-term supplies Safeguarding our access

12. Southern Nevada has been diligent in its conservation efforts.

13. Development codes Landscape rebates Watering restrictions Fixture retrofit kits Water audits Car wash coupons Efficient irrigation programs Water Efficient Technologies Pool cover rebates Water Smart Contractor program Water Smart Home program Water Upon Request program Water Conservation Coalition Water Smart Innovations Conference Conservation Helpline Demonstration Gardens H2O University Water waste investigations

14. 1.5 mil 1.6 mil 1.7 mil 1.8 mil 1.9 mil 2 mil Population 14 Southern Nevada consumptively used about 32 billion gallons less water in 2013 than in 2002, despite annual population increases and millions of annual visitors. Water Use (Acre-feet)

15. Since Water Smart Landscapes Program inception: $205 million invested to date 78 billion gallons saved 170 million square feet of turf converted* *Southern Nevada has removed enough grass for a roll of sod to extend 86 percent of earth’s circumference! (Approximately 25,000 miles) 15

16. What We’re Doing: Reducing Demands Working with Colorado River partners Securing temporary and long-term supplies Safeguarding our access

17. Coordinated operations of the system’s two major reservoirs Shortages River augmentation Environmental issues Since the onset of the drought, the seven Colorado River Basin states have been cooperatively addressing river issues:

18. Protecting river supplies remains a priority for the Basin States: System Conservation programs Weather modification efforts Conservation and resource opportunities with the country of Mexico

19. The United States also began working with Mexico to address basin-wide concerns. 1944 Water Treaty (US-Mexico) MINUTE 318 Mitigated earthquake impacts – stored water in one country on behalf of another. MINUTE 319 Creates pilot program to replenish Colorado River Mexican Delta wetlands and outlines conditions for delivery reductions among the countries 19

20. What We’re Doing: Reducing Demands Working with Colorado River partners Securing temporary and long-term supplies Safeguarding our access

21. Temporary water supplies will meet interim demands until more permanent supplies are developed. Arizona Water Bank California Water Bank Southern Nevada Water Bank Virgin and Muddy River Tributary Conservation and Imported ICS Brock Reservoir ICS Yuma Desalting Plant Extraordinary Conservation ICS Binational ICS Virgin River, Nevada

22. Groundwater Development Project alignment A water supply separate from the drought-stricken Colorado River is necessary.

23. What We’re Doing: Reducing Demands Working with Colorado River partners Securing temporary and long-term supplies Safeguarding our access

24. Intake 1 Intake 2 1,000 Feet 1,050 Feet The SNWA is constructing a third intake in Lake Mead to access the deepest part of the lake. 860 Feet Intake 3

25. -Replaces capacity in the event declining lake levels render Lake Mead Intake No. 1 inoperable -Accesses water of best quality (deepest part of lake) -Construction started 2008; to be finished in 2015 New Intake Site Intake No. 3

26. Pumping Station Discharge Pipeline Intake 1 Water Treatment Plant Intake Structure Access Shafts Intake Tunnel Connector Tunnel Intake 2 Connection Intake 2 Major Project Components $817 million, all locally funded 3 shafts (Up to 30 ft. diameter and 600 ft deep) 4 miles of tunnel (Up to 20 ft in diameter) A 100-ft tall steel and concrete intake structure on the lake bottom

27. Cutter Discs Irreparable Cutter Discs Worn Cutter Disc Tunnel Boring Machine

28. Cement trucks for intake structure placement Intake structure

29. Total Tremie Concrete = 11,300 cy February and March 2012

30. 10-ft.

31. INTAKE 1 INTAKE 2 WATER TREATMENT FACILITY INTAKE STRUCTURE ACCESS SHAFTS (Complete) INTAKE TUNNEL CONNECTOR TUNNEL Completed Jun 2010 Completed Jul 2014 INTAKE 2 CONNECTION Completed Mar 2012 Lake Mead Intake No. 3 Current Progress – August 2014 Current Tunnel Progress - 77%

32. It will take a suite of tools to minimize Southern Nevada’s drought risks. When these tools are used in concert, Southern Nevada will enjoy reliable water supplies for years into the future.