Two Compartment Reservoir Configuration Scenarios

 The EAASR was portioned into two compartments (TC) for further analysis. The

two compartment configuration is the most similar to the current design of the EAASR.

The total external inflows and outflow for the EAASR are the same as in the single

compartment case. The key difference is in how the water moves between the two

compartments. Four scenarios were evaluated. The first scenario, which was considered

to be the TSP scenario, was referred as the TC base scenario and is presented in Figure

4-5. The second scenario routed STA 3/4 inflows directly from the canals through the

respective compartments before entering the STA. The second scenario is referred to as

the TC STA scenario (Figure 4-6).

 The TC base Scenario's long-term water balance for the 36 year average of the

area, inflows, and outflow were calculated (Figure 4-5). The total average inflow to

Compartment 1 was 2,011 ac-ft/day, including inter-reservoir transfers. The total average

inflow to Compartment 2 was 1,284 ac-ft/day, including inter-reservoir transfers. Of this

total, 1,717 ac-ft/day was released to STA 3/4. The average depth of the EAASR was 5.9

feet in both compartments. Thus, the mean HRT for Compartment 1 was 45 days and 70

days for Compartment 2. STA 3/4 results were equal to the single compartment base

scenario.