Lake Superior barrel dump scandal is as murky as ever

Between 1957 and 1962, barrels containing benzene, PCBs, lead, cadmium, barium, chromium and, most likely, radioactive materials, were rolled off barges into the lake at 16 or more places along the north shore. According to the U.S. Environmental Protection Agency (EPA), this is thought to cover an area 75 square miles in size. One of the identified dump sites is within one mile of Duluth’s drinking water intake.