These cables contain reservoirs of dielectric fluid for insulation purposes. Since 1969, there have been 14 documented leaks from these cables, with two occurring in 1996. During the 1996 cable leaks, more than 10,000 gallons of alkylbenzene dielectric fluid entered the Sound after a barge's anchor dragged over and damaged the cables.
Dielectric fluid is composed of linear alkylbenzenes and trace quantities of transformer oil.
This fluid accumulates in sediment. DEC will select the projects to be funded. As we make these investments, we also must remain vigilant to prevent accidents that impede the progress being made in restoring the Sound. Each company also is required to give immediate notification to DEC of any future cable leaks.