Coast Guard alerts FERC to LNG tanker ballast problems

Juvenile fish could be sucked up into ship; new ideas cause concern

By CASSANDRA PROFITA
The Daily Astorian

The U.S. Coast Guard has stepped into the fray on Bradwood Landing's already complicated problem of how to prevent juvenile fish from being sucked up into liquefied natural gas delivery tankers along with the ballast water.

More: http://www.dailyastorian.com/main.asp?SectionID=2&SubSectionID=395&ArticleID=61039

Ballast water is only a small amount, compared to the amount of cooling water intake and discharge, especially from steampowered ships. Most LNG carriers are powered by steam turbine, only the newest and larger ships are being powered by multiple fueled diesel power. An average 148.000m3 steam powered LNG carrier will during a 24 hour delivery visit have a combined intake of ballast and cooling water of 74 million gallons, the ballast portion of this will be only 14 million gallons.(Blogger)

The USCG does not differentiate between river traffic of other ships and the building of a terminal in a salmon estuary, I for one see a significant difference as do many scientists and NOAA.