This is a link to the NOAA page, where you can find contact and other information: http://www.nwr.noaa.gov/Marine-Mammals/Seals-and-Sea-Lions/Sec-120-Draft-EA.cfm
You have only until February 19th to be heard by them before they make a decision. This is the last paragraph of the draft:
"NOAA will consider all substantive comments received by 5 p.m. (PST) on Feb. 19, 2008. You may submit comments by e-mail. See the Federal Register notice, below, for more information; or contact Garth Griffin, 503-231-2005."
The email address is firstname.lastname@example.org.
Please let them know that sea lions have always been on the Columbia river, and so have salmon. It is not sea lions who are to blame for the extinction of salmon. It is dams and over-fishing, and gill nets. If they really want to save the salmon, they will need to curb fishing, and to redesign the dams to allow passage of fish from below to above the dams and back again. Let them know that we value the sea lions as a link in our increasingly fragile local ecology, and we will not accept any harm to any of them. The sea lions are our neighbors. Let them live.