FORT EDWARD — Officials from the EPA and General Electric have touted the success of the first season of dredging the Hudson River, during which nearly 300,000 cubic yards of PCB-contaminated sediment was removed from the river. But does the amount of contamination removed so far, and scheduled to be removed in the scope of the entire project, come close to addressing the entire problem of PCBs dumped by GE’s Fort Edward capacitor manufacturing plant?