[APWG] NEWS: Groups sue EPA, want tougher ship discharge rules

[Olivia Kwong]

http://news.yahoo.com/s/ap/20090113/ap_on_re_us/invasive_species

Groups sue EPA, want tougher ship discharge rules
By John Flesher, Ap Environmental Writer - Mon Jan 12, 8:32 pm ET

TRAVERSE CITY, Mich. -- Environmentalists sued the federal government 
Monday over new rules that critics say do too little to prevent cargo 
ships from dumping invasive species into the nation's waterways.

The Environmental Protection Agency is requiring oceangoing vessels to 
exchange their ballast water, or rinse their ballast tanks if empty, 
before entering U.S. coastal waters and the Great Lakes. Environmentalists 
say more extensive treatment of ballast tanks is necessary to keep 
invasive species from foreign ports from damaging U.S. aquatic ecosystems.

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