Thirsty Central Florida has plans for St. Johns _ Jacksonville
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Published Wednesday, September 5, 2007
Thirsty Central Florida has plans for St. Johns
The river would lose hundreds of millions of gallons under the proposals
DAVID HUNT
Imagine the Empire State Building flooded nearly to its trademark lightning rod.
That's about how much water the St. Johns River could lose each day under plans to quench a thirsty Central Florida.
Utility managers are considering taking up to 262 million gallons daily from the St. Johns and a tributary, the Ocklawaha
River, to support a groundwater network not expected to handle population growth beyond 2013.
The idea has led to much debate over environmental and development issues
from Orlando, where the water is most needed, to Jacksonville, where the
water's loss could be most noticeable.
"It really is quite a domino effect. It's not like you're just pulling an amount of
water out or turning a faucet off a little bit," said Quinton White, a Jacksonville
University biologist and the school's arts and sciences dean. "This is another
example of man trying to harness nature. I don't think we've ever successfully
done that."
White said he sees the drawdown blending more of the Atlantic Ocean's
saltwater into the river's already salty lower basin, killing off freshwater plants
and species. He also said the change in flow could create sediment deposits big
enough that dredging will be more frequently necessary to make way for
Jacksonville's cargo traffic.
Planning the drawdown are dozens of Central Florida utility managers and the St. Johns River Water Management District,
a regulatory agency charged with finding a compromise between development and environmental needs.
The water management district is projecting a 4.9 percent reduction in flow, which officials say should not have significant
impacts on salt levels and sea life. Printed agency research shows the drawdown likely would increase the river's habitat
for pink shrimp while shrinking the amount of space for blue crabs.
Five conceptual plans are under discussion. If any moves forward, construction could begin by 2009. Projected
construction costs range between $800 million and $1.2 billion, with state tax dollars funding as much as $500 million, said
agency Water Supply Management Director Barbara Vergara.
While financial issues have become part of the debate, opponents claim the water management district is meddling with
Mother Nature and could be sacrificing one of Jacksonville's most precious resources. Agency officials say some of the
concerns have been alarmist.
"People get images in their minds of what it looks like out west with the Colorado River stopping in California or the Rio
Grande not running to the Gulf of Mexico," said James Gross, an agency senior project manager. "We're talking about
reducing the discharge of the St. Johns River to the ocean by 4 percent. We're not talking about permitting out every drop
of water."
Even at 262 million gallons each day, enough water to fill nearly 400 Olympic-size swimming pools, it may not be long until
the region thirsts again. Vergara said the St. Johns River Water Management District has anticipated this and has been
working on plans to desalinate ocean water for the past seven years.
The idea to treat river water has been developing since the mid-1990s, when planners were examining ways to get more
drinking water for growing St. Johns County. Vergara said drawing from the river was considered too complicated a
solution in that case because of the salt levels in the river's northern sections.
In Central Florida drawing from the river is a much more sound idea, she said, because the north-flowing freshwater
pushes away south-flowing saltwater. Although not as expensive as desalination, treating river water will be more costly
than what utilities are used to, she added.
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Thirsty Central Florida has plans for St. Johns | Jacksonville.com http://jacksonville.com/tu-online/stories/090507/met_196934057.shtml
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