Wenger 72944 Especificações descarregar pdf (Página 309)

Section 8 Plan Implementation

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

8-7

Until a new source of water of comparable quantity and quality is available to

replace the water lost as a result of project implementation.

The analysis of effects on existing legal sources was conducted by evaluating

water supply performance measures, including stage and volume probability

curves for basins and/or indicator regions and water budget 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, was simulated with the regional model, and the modeled outputs were

compared to those produced for the base condition representative of conditions

as of December 2000 (the Pre-CERP Baseline).

To evaluate project effects on the legal sources for the above-listed user groups,

the sources supplying water to those user groups as of December 2000 must be

identified and the project’s potential effects on those sources must be evaluated.

In general, the selected plan increases the quantity of water available from

existing legal sources for agricultural and urban water supplies, Seminole and

Miccosukee Tribal water supplies, Everglades National Park, and fish and

wildlife compared to Pre-CERP Baseline quantities. Implementation of the

selected plan will also result in a transfer of a portion of the existing legal source

for agricultural water supply in the Everglades Agricultural Area from Lake

Okeechobee to water supplied by the reservoir. However, implementation of the

selected plan will not preclude operation of the C&SF project to deliver water

from Lake Okeechobee to meet agricultural water supply needs or to the WCAs

and Everglades National Park to meet environmental demands for water supply

in those areas. Therefore, no additional sources of water need to be identified

due to the partial transfer resulting from project implementation since Lake

Okeechobee will continue to provide water to agricultural users and the WCAs

and Everglades National Park. An explanation of the modeling performed,

analytical methods, and the results of this evaluation are contained in Annex G

of this report.

8.4.3 Identification of Water to be Made Available for the Natural System

As discussed above, the EAA Storage Reservoir Project is intended to

beneficially affect environmental conditions in Lake Okeechobee, the St. Lucie

and Caloosahatchee Estuaries, and the Water Conservation Areas and

Everglades National Park.

Beneficial effects in Lake Okeechobee and the Caloosahatchee and St. Lucie

Estuaries are achieved by reducing harmful water levels in Lake Okeechobee

and the volume, frequency, and duration of damaging freshwater discharges to

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Wenger 72944 Especificações Página 309