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Spring 2004, V.19 N.1 Table of Content	Costly New Septic Tanks Keep Nitrogen out of Water
News Around the Lagoon Costly New Septic Tanks Keep Nitrogen out of Water Water Management District Uses Grove Land to Store Excess Water Environmentalists Urge Action on Ship Ballast Water Supreme Court Rules EPA can Overrule State in Clean Air Case Halting Toxic Cleanups Water the Oil of the 21st Century New Gates Reduce Silt from Canals in Indian River County Key West Asks Cruise Ships to Stop Dumping Endangered Species Act may be in Danger Manatee Deaths Drop Here, but Rise on West Coast Conservation Groups Sue for EPA to Regulate Water Pollution in Florida New Tag Aims to Help Protect Coral Reefs Politics Trump Science Chemical Industry Seeks Approval of Pesticides at Expense of Wildlife	On Grant Farm Island, homeowners must use high-tech septic tanks to keep excess nitrogen from the Indian River Lagoon. But elsewhere in Brevard County, people can still install tanks that release excess nitrogen and phosphorus than can foul groundwater and help spur harmful algae blooms. Brevard has more than 70,000 households on septic tanks, including most of the homes south of Melbourne Beach. Some are old, not maintained properly, and can leak or backup during storms, contaminating ground water. Advanced-treatment septic tanks of Advanced Water Engineering Inc. use sponge-like materials and extended biological processes to treat out nitrogen. They cost upward of $10,000 installed, about twice as much as a traditional septic tank. They also use 40% less space for drain fields and reduce the need to dig up roads to fix old broken sewer pipes. Next Article:  Water Management District Uses Grove Land to Store Excess Water

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