The model run results cover the period May 20 through June 9 and are based on the following assumptions:

Common Assumptions

1. CCFB Gates are operating to Priority 1.

2. The Delta Cross Channel gates are closed on weekdays and open on weekends until the last day of this forecast.

3. Suisun Marsh Salinity Control flashboards are in. All three gates are in the open position.

4. San Joaquin River flow at Vernalis is at 1905 cfs at the beginning of the forecast period and is estimated to decrease to 1900 cfs by the end of the forecast period.

5. San Joaquin River EC at Vernalis is at 268 umhos/cm at the beginning of the forecast period and is estimated to increase to 269 umhos/cm at the end of the forecast period.

6. Sacramento River flow at Freeport is at 16071 cfs at the beginning of the forecast period and is expected to decrease to 15500 cfs by the end of the forecast period.

7. CCFB inflow is at 598 cfs at the beginning of the forecast period and is expected to increase to 3700 cfs by the end of the forecast period.

8. Export at Jones Pumping Plant is at 3555 cfs at the beginning of the forecast period and is expected to decrease to 1800 cfs to the end the forecast period.

9. The Middle River barrier was closed on May 9. Intermediate culvert operations begin on May 21, followed by full culvert operations on June 2.

10. The Old River near Tracy barrier is closed on May 21. Intermediate culvert operations begin on May 21, followed by full culvert operations on June 2.