1. Model Overview Application of CALSIM II to Friant System

2. CALSIM Development for USJRBI, Phase I Incorporate Real-time Operational Decision Logic for Operation of Millerton Lake  Water supply allocation based on available water supply –Class 1, Class 2, and 215 water allocation made in March and updated monthly through end of June –Monthly use of Class 1 and Class 2 are dynamic based on availability of Class 2 and 215 water  Flood operation based on seasonal runoff –Water supply forecast used in February and updated monthly through end of June to target filling Millerton by end of June –Pre-release for snowmelt runoff are made each month from February through May

3. Monthly Delivery Adjustment Forecasted Snowmelt Release Monthly Delivery Pattern Annual Class 2 Allocation Annual Class 1 Allocation Annual Water Supply Forecast Water Supply Allocation Procedure Initial Monthly Delivery Rain Flood Release 215 Water Allocation Annual Delivery Monthly Delivery

4. Model Validation Model Validation  Compare Model Simulation to Historical Operation  Findings: – Model adequately mimics historical operation – Model simulation provides “benchmark” for comparative analysis

5. Model Validation Plots Annual Total Canal Delivery Annual Madera Canal Delivery Annual Friant-Kern Canal Delivery 1952-1961 Monthly Millerton Operation 1952-1961 Monthly Canal Diversions 1962-1971 Monthly Millerton Operation 1962-1971 Monthly Canal Diversions 1972-1981 Monthly Millerton Operation 1972-1981 Monthly Canal Diversions 1982-1991 Monthly Millerton Operation 1982-1991 Monthly Canal Diversions 1992-1994 Monthly Millerton Operation 1992-1994 Monthly Canal Diversions

6. Conclusion  Model adequately mimics historical operation  Model simulation provides “benchmark” for comparative analysis

7. End

8. Annual Total Canal Delivery Most differences are explainable

9. Annual Madera Canal Delivery

10. Annual Friant-Kern Canal Delivery

11. Rerouted Flood Flow to Madera Canal – Fresno River

12. 1952-1961 Monthly Millerton Operation

13. 1952-1961 Monthly Canal Diversions

14. 1962-1971 Monthly Millerton Operation

15. 1962-1971 Monthly Canal Diversions

16. 1972-1981 Monthly Millerton Operation

17. 1972-1981 Monthly Canal Diversions

18. 1982-1991 Monthly Millerton Operation

19. 1982-1991 Monthly Canal Diversions

20. 1992-1994 Monthly Millerton Operation

21. 1992-1994 Monthly Canal Diversions

22. Annual Water Supply Forecast  Water Supply Volume Available for Delivery = + Beginning of Month Storage + Inflow (through September) - Canal Loss (through September) - Minimum River Release (through September) - Evaporation Estimate (through September) - Carryover Target (end of September)  Updated Monthly From March Through June

23. Annual Class 1 Allocation Minimum of Water Supply Volume Available for Delivery Water Supply Volume Available for Delivery 800,000 AF 800,000 AF  Updated Monthly From March Through June

24. Annual Class 2 Allocation Minimum of Water Supply Volume Available for Delivery Water Supply Volume Available for DeliveryMinus Class 1 Allocation Class 1 Allocation Spill forecast Spill forecast 1,400,000 AF 1,400,000 AF  Updated Monthly From March Through June for Spills  Adjusted for Wetness in Tulare Basin

25. Monthly Delivery Pattern  Patterns are developed based on deliveries from 1982-1997  4 Sets of Monthly Patterns 1.Total Friant-Kern Canal 2.Friant-Kern Canal Class 1 3.Total Madera Canal 4.Madera Canal Class 1  CALSIM uses annual delivery allocation to select pattern  Class 2 Pattern is the Difference Between Total and Class 1

26. Historical Total Delivery Pattern

27. Historical Class 1 Delivery Pattern

28. Total Delivery Patterns

29. Class 1 Delivery Patterns

30. Snowmelt Release Forecast  Volume of Friant release, above Class 1 and Class 2, to be made with the target of filling by the end of June  Spill volume is spread throughout spring, the pattern of release is based on spill volume  Updated Monthly From February Through June  Snowmelt Release Volume = + March 1 Storage + Inflow (through June) - Canal Loss (through June) - Minimum River Release (through June) - Evaporation Estimate (through June) - Maximum Millerton capacity -Canal Delivery

31. Delivery Adjustment  Friant-Kern Canal Class 2 delivery is reduced based on Tulare Basin wetness – Natural Flow of Tule River is used as wetness indicator  Madera Canal delivery is reduced based on Madera Canal service area demands

32. 215 Water Allocation  Allocation is made only when Friant will spill for Rain flood or pre-release for snowmelt  215 water will not be allocated when delivery is reduced due to basin wetness  215 demand is 1,200 cfs for Friant-Kern Canal  215 demand is 100 cfs for Madera Canal