Palm Beach Post
May 09, 2007

Water managers move ahead with cleaning Lake O

http://www.palmbeachpost.com/hp/content/local_news/epaper/2007/05/09/0510WATER.html

Water managers said Wednesday they're speeding ahead with $11 million worth of projects to scrape noxious muck from Lake Okeechobee, seizing on one of the ecological bright spots of the region's shriveling drought.

The work is aimed at gouging a total of 3.8 million cubic yards of muck from various spots around the lake - approximately enough to bury the Kravis Center under a 240-foot-tall pile.

At the same time, the projects will remove a little less than 1 percent of the polluting phosphorus coating the 730-square-mile lake's bottom. And it will unclog some navigation canals near Belle Glade's marina.

The projects are possible because 18 months of abnormally dry weather have dropped the lake to within 4.5 inches of its all-time record low water level. That means much of the lake's bottom is now dry, muddy beach - accessible to trucks and bulldozers, not boats.

What might spoil the water managers' plans? For one thing, rain might make the lake start rising again, even though that would ease their worries about the drought.

"We'll either run out of time or we'll run out of money," said Susan Gray, deputy director of watershed management at the South Florida Water Management District. But for now, she said, the drought "has given us a tremendous opportunity." The district is carrying out the projects in cooperation with agencies such as the state Fish and Wildlife Conservation Commission, Glades County and the city of Belle Glade.

The lake once had a sandy bottom, but decades of manure- and fertilizer-laden runoff have left it coated with about 300 million cubic yards of muck and more than 30,000 tons of phosphorus. The muck smothers potential plant habitat, and the phosphorus sloshes around the lake in stormy weather, worsening the lake's pollution woes.

The 2004 and 2005 hurricanes spread the muck even further. Only recently has the lake shown signs of recovering from the ecological damage that Hurricane Wilma wreaked in October 2005, Gray told the board.