1. August 23, 2012 Urban Water Institute August 23, 2012 Can the Colorado River meet our Region’s Future Water Supply Needs? Bill Hasencamp Manager, Colorado River Resources Metropolitan Water District of Southern California

2. August 23, 2012 Urban Water Institute Urban Southern California’s Water Supply Sources LAKESHASTA LAKEOROVILLE Bay-Delta STATE WATER PROJECT (2.0 MAF) LOS ANGELES AQUEDUCTS (0.5 MAF) COLORADO RIVER AQUEDUCT (1.25 MAF) METROPOLITAN WATER DISTRICT SERVICE AREA LOCAL 2.0 MAF

3. August 23, 2012 Urban Water Institute

4. August 23, 2012 Urban Water Institute Colorado River Apportionments (Million acre-feet) Apportionments Deliveries in 1990s Mexico Upper Basin States Lower Basin States 1.71 2.8.31.04 3.86 4.4.84 1.5.05.39.80 2.4.2 5.1.49 1.8 2.5.02

5. August 23, 2012 Urban Water Institute One of Many Arizona Spreading Basins Store 100,000s AF Annually

6. August 23, 2012 Urban Water Institute California’s 1931 Seven Party Agreement 4 MWD 0.550 5MWD 0.662 6IID, CVWD, PVID0.300 7Additional Ag Use -- 1931 Agr. Priority (maf/yr) 1PVID 2Yuma Project 3(a)IID & CVWD 3(b)PVID 3.850 } 4.4

7. August 23, 2012 Urban Water Institute

8. August 23, 2012 Urban Water Institute maf PVID Yuma Project IID3.10 CVWD0.33 MWD*0.55 Total4.40 * Amount fluctuates based on PVID/Yuma Project use, unused IID and CVWD water 0.42 (Average) Quantification Settlement Agreement Quantified Water Budgets

9. August 23, 2012 Urban Water Institute Comparison of CA’s Water Rights Under QSA IID’s Share IID’s Share

10. August 23, 2012 Urban Water Institute Comparison of CA’s Water Rights Under QSA IID’s Share IID’s Share MWD’s Share

11. August 23, 2012 Urban Water Institute Comparison of CA’s Water Rights Under QSA IID’s Share IID’s Share MWD’s Share CVWD’s Share

12. August 23, 2012 Urban Water Institute California Plan and QSA Major Terms (2003) Quantify Coachella and Imperial’s priority rights Quantify Coachella and Imperial’s priority rights Implement Agricultural Conservation Measures Implement Agricultural Conservation Measures –Line All-American and Coachella Canals –Fund System Efficiency and Fallowing Programs in IID Transfer conserved water to San Diego County and Coachella Valley Transfer conserved water to San Diego County and Coachella Valley Provide Special Surplus to Metropolitan to keep Aqueduct filled through 2016 Provide Special Surplus to Metropolitan to keep Aqueduct filled through 2016 The 4.4 Plan was projected to keep MWD’s Aqueduct full for at least a decade, but that goal was no realized… The 4.4 Plan was projected to keep MWD’s Aqueduct full for at least a decade, but that goal was no realized…

13. August 23, 2012 Urban Water Institute

14. August 23, 2012 Urban Water Institute MWD’s Water Supply Crash Cutback Began Jan. 1, 2003 Cutback Began Jan. 1, 2003 2002 Available Supply: 2002 Available Supply: –1,250,000 Acre-feet Initial Approved Supply 2003: Initial Approved Supply 2003: –513,000 Acre-feet

15. August 23, 2012 Urban Water Institute QSA Transfers Delayed to Protect Salton Sea Formed in 1905 Formed in 1905 –Sustained by Ag drainage 25% Saltier than Ocean 25% Saltier than Ocean –Salinity increase 1%/yr –Soon too Salty for Fish QSA Protected Sea from Transfer Impact for 15 years QSA Protected Sea from Transfer Impact for 15 years –IID fallows land and delivers water to Salton Sea to mitigate SDCWA transfer through 2017 –State to cover any increase in transfer mitigation costs –State agrees to restore Sea

16. August 23, 2012 Urban Water Institute Southern Nevada Water Agency Arizona Groundwater Storage Program Yuma Desalting Plant/Drop 2 Desert Water Agency Coachella Valley Water District Palo Verde I.D. MWD/SDCWA Partnerships AAC Lining IID Conservation

17. August 23, 2012 Urban Water Institute Colorado River Supply Available to Metropolitan Water District

18. August 23, 2012 Urban Water Institute MWD's ICS Stored in Lake Mead 2006-11 Total 2012 ICS balance, after losses: 435 TAF

19. August 23, 2012 Urban Water Institute Where do we go from here? Long-term Options for Refilling CRA Additional Ag Transfers in CA? Additional Ag Transfers in CA? –IID Board stated no new transfers beyond QSA –PVID has provided temporary increases –CVWD and Bard have limited options Binational Projects with Mexico? Binational Projects with Mexico? –Much potential, but currently no mechanisms in place –Following panel to discuss current effort in more detail Partnerships with other states? Partnerships with other states? –Interstate water sharing? Basin Study is 7 states effort to evaluate most promising options and plan for their implementation Basin Study is 7 states effort to evaluate most promising options and plan for their implementation

20. August 23, 2012 Urban Water Institute Bill Hasencamp 213-217- 6520 whasencamp@mwdh2o.com