approaches. A model in the water quality discipline was therefore sought to assess which of several alternatives are better. Simple empirical and mass balance models were found that can be used for the EAASR. Comparable lake and reservoir systems were found to provide parameter estimates for EAASR. Due to the wide range of possible operational conditions and planning and design challenges, a water quality model developed specifically for the EAASR was be necessary. The water quality model must therefore incorporate measures to meet the planning and design challenges of the EAASR project. Chapter 3 presents several iterations of EAASR configurations that have been developed throughout the project. Early configurations used a combination of Components A, B, and C of Figure 2-2. Configurations were then formulated using only Component A. The sizing of the reservoir was evaluated first. Three configurations were developed to evaluate the volume of the reservoir. Four additional alternatives were developed to evaluate the depth of the reservoir. A 12 foot deep, 360,000 acre-foot reservoir was subsequently decided upon. Three configurations were then developed to assess the compartmentalization of the reservoir. The configurations were developed for a single compartment, two compartments, and four compartments. The location of the compartments affected the source of water received for both the EAASR and STA 3/4. Unlike early configurations, internal transfers between the compartments occurred from multiple compartments. The review of the EAASR configurations was performed to provide the context in which the water quality model is developed. To use these configurations, a water quality model should include depth, area, and compartmentalization with varying area. Due to the inter-reservoir transfers, the model must be able to simulate reservoirs in series, with