Some cancer-causing waste that lies for 9 miles along the bottom of the Passaic River in Essex, Bergen and Passaic counties would be removed while some contaminated sediment would be left and capped beneath a barrier, according to a $441 million cleanup plan unveiled Wednesday by federal environmental officials. The plan, which still needs final approval, would dredge 387,000 cubic yards of contaminated sediment laced with cancer-causing dioxin, PCBs and heavy metals from North Arlington to the Dundee Dam, which lies across the river between Clifton and Garfield. The plan by the U.S. ...