The U.S. Coast Guard has published “Ballast Water Treatment, U.S. Great Lakes Bulk Carrier Engineering and Cost Study” on its Internet portal Homeport.
The intent of this study is to investigate the design and ballast water management (BWM) practices of US flag vessels operating solely within the Great Lakes; assess the potential for these vessels to install and operate ballast water management systems to kill or remove living organisms; and develop generalized, installation design and cost estimations, including a land-based alternative to shipboard ballast water treatment.
It is available for download at:
Or go to https://homeport.uscg.mil:
Select Missions > Environmental > Ballast Water Management Program > General Information > EPA/Coast Guard studies and other reports >, look for
Ballast Water Treatment, U.S. Great Lakes Bulk Carrier Engineering and Cost Study (CG-D-12-13), November 2013