The long-term WB was calculated for each compartment and STA 3/4 separately.

The average daily value of each WB component for the 36 year simulation period was

used to represent the magnitude of each component. The averages are presented in units

of ac-ft/day to allow comparison between the compartments and STA 3/4. The change in

storage was calculated from the difference in volume between the first and last day of the

dataset. The long term water balances for each compartment are presented in Table 4-1.

 Several key insights may be gained from inspection of the 36 year water balance.

The differences between natural WB components, rainfall, ET, and GW offset each other

for the EAASR and STA 3/4. GW and ungaged flows can be assumed to be negligible on

a long term average. The resulting simplified long term WB was used in the remainder

of the report.

Table 4-1. Thirty Six Year Water Balance for EAASR and STA 3/4
 WB Term C1 C2 C3 C4 STA 3/4
 Inflow (ac-ft/day) 485 470 442 290 2,201
 Transfer (ac-ft/day) 105 318 83 280 NA
 Ungaged (ac-ft/day) 0 0 0 2.1 0
 Rainfall (ac-ft/day) 58 120 58 118 208
 GWI (ac-ft/day) 0.3 0.2 0.0 0.1 0.2
 Total Inflow (ac-ft/day) 648 908 583 690 2,409
 Outflow (ac-ft/day) 261 695 218 488 2,177
 Transfer (ac-ft/day) 318 88 296 83 NA
 Ungaged (ac-ft/day) 4.0 3.6 2.5 0 13.4
 ET (ac-ft/day) 64 119 64 118 216
 GWo (ac-ft/day) 0.3 1.8 0.5 1.0 0.2
 Total Outflow (ac-ft/day) 648 907 582 690 2,407
 Storage Increase (ac-ft/day) 0.2 0.7 1.2 0.7 2.5
 Net Error (ac-ft/day) 0 0 0 0 0
 Average Depth (ft) 8.26 4.79 8.54 4.54 2.35

Single Compartment Reservoir Configuration Scenarios

 The single compartment (SC) reservoir is the simplest scenario. Two scenarios

were performed to provide a basis for further comparison in the two and four