On first glance, to locals and visitors alike, the Hudson can appear as an idyllic and pristine waterway. Looks can be deceiving though and few people realize that the Hudson is actually one of the nations largest superfund toxic waste sites. Decades of unchecked industry operations along its shores have left it scarred in ways that can be invisible to the casual observer. The most well known infraction was on the part of General Electric, who dumped copious amounts of the chemical coolant PCB directly into the river from 1947-1977. Even with this legacy of abuse in the name of industry, the Hudson continues to face similar threats even today; a sprawling expansion of electrical transmission lines across the Hudson Valley, the development of massive fossil fuel infrastructure projects like the Pilgrim crude oil pipelines and the AIM natural gas pipelines, and the plan to greatly expand the amount of anchorage locations that would primarily serve tankers and barges carrying unrefined domestic crude oil between Albany and export refineries to the south.