Over on allstocks people have been questioning the submerged timber's integrity so I found this excerpt from a book written about timber <A HREF="http://books.google.com/books?vid=LCCNagr09000837&id=fsniLcEwiAsC&pg=PA258&lpg=PA258&ots=QbH86J8zKF&dq=is+submerged+timber+preserved" target="_blank">http://books.google.com/books?vid=LCCNagr09000837&id=fsniLcEwiAsC&pg=PA258&lpg=PA258&...</A>