Wenger 72944 Especificações descarregar pdf (Página 157)

Section 5 Formulation of Alternative Plans

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

5-3

Prior planning efforts have concluded that additional water storage areas must

be located near Lake Okeechobee as this will ensure a robust hydraulic

connection to the lake and the flexibility needed to better manage high water

levels in the lake. Proposed locations and management measures for achieving

additional water storage in the vicinity of Lake Okeechobee include:

1. Additional Storage in Lake Okeechobee,

2. Storage North of Lake Okeechobee,

3. Storage East and West of Lake Okeechobee,

4. Aquifer Storage and Recovery Systems (ASR)

5. Flow-way from Lake Okeechobee to WCAs, and,

6. Storage South of Lake Okeechobee in the EAA (recommendation of

Restudy).

In this section, the efficacy and environmental implications of each of these

locations and management measures are assessed, in addition to a consideration

of cost-effectiveness.

5.2.1.1 Additional Storage in Lake Okeechobee

Additional water storage could be accommodated in Lake Okeechobee. Storage

could be provided by adjusting the lake regulation schedule (known as WSE 25

and set to allow lake levels to fluctuate between 15.5 and 17.5 NGVD) to allow

higher lake levels to provide the needed dry season environmental and

agricultural deliveries, while restricting the wet season discharge to the

estuaries and WCAs. In order to maintain protection of surrounding land uses,

the Herbert Hoover Dike (HHD) around the lake would also need to be modified

to accommodate the higher water levels.

Additional water stored in the lake could meet the following project planning

objectives:

1. Improve the timing of environmental deliveries of water to the WCAs.

More water would be available to meet the needs of the natural system

when the natural system needs it.

2. Reduce Lake Okeechobee regulatory releases of water to the WCAs. The

lake could hold back water and not send it to the WCAs when the WCAs

already have too much water.

3. Reduce regulatory releases of water from Lake Okeechobee to the St.

Lucie and Caloosahatchee Estuaries. The lake could hold back water and

not send it to the estuaries in such large volumes that their natural

salinity regimes are harmed.

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Wenger 72944 Especificações Página 157