Wenger 72944 Especificações descarregar pdf (Página 264)

Section 6 The Selected Alternative Plan

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

6-36

• Salinities in the riverine portions of the Caloosahatchee River will

increase to allow oyster reef growth;

• Expansion of 18 acres of oyster beds in the Caloosahatchee Estuary to 100

acres in the next 10 to 15 years;

• Increase the spatial extent and improve the function of submerged aquatic

vegetation the Caloosahatchee River and Estuary;

• Salinities in the St. Lucie Estuary will be between 350 to 2,000 cfs to

allow oyster reef growth;

• Expansion of oyster beds in the St. Lucie Estuary to approximately 890

acres of oysters;

• Increase the spatial extent and improve the function of submerged aquatic

vegetation the St. Lucie Estuary; and,

• Increase the health of fish in the St. Lucie and Caloosahatchee Estuaries

by reducing prolonged discharges of large volumes of lake water. Rather

than relying on Lake Okeechobee to provide water storage, use of the

proposed EAA reservoirs with other CERP reservoirs and ASR for water

storage will have beneficial effects to the health and ecology of the lake.

• Reduction of extreme high and low levels in Lake Okeechobee, resulting

in:

o Increase in the amount and quality of submergent and emergent plant

communities in Lake Okeechobee; and,

o Improve foraging and habitat for wading birds and native fish. Some

improvement to lake water quality will occur as a result of the Project

by redirecting nutrient rich EAA drainage to the reservoirs rather that

directly to Lake Okeechobee.

Improvements to the water quality entering the WCAs will result from the

ability to more effectively store water within the proposed EAA reservoirs by

metering peak flows in the STAs. STAs are intended to provide treatment

rather than store water; however, during the wet season and flood events, they

have been used to provide both functions. Creation of the reservoirs will provide

the needed storage function, allowing the STAs primary use as water treatment

facilities. Increased residence times of water within the STAs will ensure better

treatment of waters released to the WCAs and have beneficial water quality

effects on all downstream ecosystems.

The selected alternative plan would affect 3 farm parcels covering about 33,135

acres, would displace a maximum of 20 resident non-owners. It would not

impact any known historic or cultural resources. There would be no adverse

impacts on minority or disadvantaged populations. Permanent habitat losses

due to land conversion to deep water and structures within the footprint would

be offset by the gain in habitat quality in Lake Okeechobee, the northern

estuaries and the WCAs.

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