Coco, MatthewEPA Journal2010-02-152010-02-151988http://hdl.handle.net/1969.3/26624pgs. 29-31This article discusses the decrease coho (silver) salmon production in one of Washington's principle river systems, the Chehalis River. The experts developed a series of hypotheses, discussed in this article, to be tested by experiments and data analysis and a series of studies will be conducted in EPA Region 10 that may give insight into this problem.marine environmentoffshore environmentsewage sludgecongressspecial protectionglobal oceansboston harborwest coastdischargertough choicessalmonepa diversoil rigseat seafoodair toxicsgreat lakesArticle