1. California Water Supply Overview Robert Shibatani CEO & Consulting Hydrologist The SHIBATANI GROUP, Inc.

3. California’s Annual Average Water Summary (MAF) 1998 (171% of normal) WET 2000 (97% of normal) NORMAL 2001 (72% of normal) DRY Total Supply (P  & Imports) 336.9194.7145.5 Total Use, Outflows, & E  /ET 331.5200.4159.9 Net Storage Change5.5-5.7-14.3 Distribution of Dedicated Supply Urban Uses7.8 (8%)8.9 (11%)8.6 (13%) Agricultural27.3 (29%)34.2 (41%)33.7 (52%) Environmental59.4 (63%)39.4 (48%)22.5 (35%) Total Dedicated Supply94.582.564.8

4.  Hydrological perspective – California is not water short  Allocation and Conveyance  Managing within existing infrastructure  Managing within existing environmental constraints

5. Storage in Major CVP Reservoirs (TAF) – October 26, 2009 ReservoirCapacity15 Yr Average WY 2009WY 2010% of 15-Yr Average Trinity2,4481,5641,05290858 Shasta4,5522,5901,3021,73067 Oroville (SWP)3,5382,0291,0591,30664 Folsom97747724336576 New Melones2,4201,5961,1031,11270 Fed. San Luis9663679230583 Millerton520230176349152 Total CVP11,3606,5953,7924,42067

6. Major Reservoir Releases (cfs) – October 26, 2009 WatershedDamWY 2009WY 201015-Yr Median TrinityLewiston473291300 SacramentoKeswick6,9705,850 FeatherOroville1,7002,0002,400 AmericanNimbus1,0061,7971,883 StanislausGoodwin4701,255695 San JoaquinFriant180351176

7. Accumulated Precipitation for Water Year to Date (inches) – October 26, 2009 ReservoirCurrent WY 2010 Driest WY 1977 Wettest WY 1983 Ave (N Yrs) % of Ave Last 24 Hours Trinity at Fish Hatchery 1.850.201.971.21 (47) 1530.00 Sacramento at Shasta 6.160.072.261.91 (52) 3230.00 American at Blue Canyon 5.340.875.061.97 (34) 2710.00 Stanislaus at New Melones 2.350.002.060.86 (31) 2720.00 San Joaquin at Huntington Lake 0.001.201.901.20 (34) 00.00

8. ANADROMOUS FISHSMELT/STRIPED BASS

11.  CVP-OCAP uncertainty  RPAs on both DOI/DOC BiOps  Salvage monitoring at the pumps  OMR flow monitoring  Pending Judge O. Wanger Decisions  Ongoing BDCP  FLOODSafe

12. Long-term threats?  Reduced Exports  Increasingly stringent In- Delta WQ standards  Standard Term 91  Federal Shortage Policy changes (M&I and Ag)  Accommodations for flood control  Climate change effects  What does it all mean to water purveyors?