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Section 8 Plan Implementation

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

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the estuaries via the C-43 (Caloosahatchee) and C-44 (St. Lucie) Canals. For

these three benefit regions (Lake Okeechobee, St. Lucie Estuary, Caloosahatchee

Estuary), the primary beneficial environmental effect is to improve fish and

wildlife habitat in those areas by lowering damaging high water levels and by

reducing damaging discharges of freshwater; therefore, the selected plan was not

formulated and will not be operated to make available additional water for the

protection of fish and wildlife in those areas. However, the existing water

delivered to those areas for the protection of fish and wildlife was considered as

part of the evaluation performed to identify and quantify the beneficial effects of

the project.

To identify the quantity of water made available by the selected plan for the

protection of fish and wildlife in the Water Conservation Areas and Everglades

National Park, the selected plan's effects were evaluated by comparing depth

and flow volume probability curves using data produced by the South Florida

Water Management Model. To identify project effects, the regional water

management system including the operations of the selected plan were

simulated with the model and the modeled outputs were compared to those

produced for the base condition representative of current conditions (the

Existing Condition PIR Baseline).

The results of this evaluation indicated that the selected plan will provide

additional water for the protection of fish and wildlife in WCAs 3A and 3B and

Everglades National Park, which will be reserved or allocated for the natural

system under State of Florida law in accordance with the requirements of

Section 601(h)(4) of the Water Resources Development Act of 2000. A detailed

explanation of the modeling performed, analytical methods, and the results of

these evaluations are contained in Annex G of this report.

8.4.4 Identification of Water for Other Water-Related Needs

In addition to maintaining the quantity of water available to meet water supply

demands as of December 2000 and increasing the quantity of water available

that is beneficial for the protection of fish and wildlife, it is also anticipated that

some CERP projects, including the EAA Storage Reservoir project, will increase

the amount of water available for other water-related needs of South Florida,

including providing water to meet additional and future water supply demands

and for the prevention of saltwater intrusion into the freshwater aquifer.

Similar to the process for identifying water made available for the protection of

fish and wildlife, to evaluate the selected plan's effects on water for other water-

related needs, the selected plan was modeled with the South Florida Water

Management Model and the modeled outputs were compared to those produced

for the base condition representative of current conditions (the Existing

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