Unlike CERCLA, the Massachusetts Superfund law, Chapter 21E, does include oil within its ambit. However, oil is not treated exactly the same as hazardous materials. One difference is that, in 2007, MassDEP revised the Massachusetts Contingency Plan to provide that, in certain circumstances, where “Contamination is limited to oil,” the exposure point concentration is measured at the Public Water Supply well, rather than in each of the monitoring wells, as is otherwise the case.
It is understood that oil includes gasoline, but what if the spill was in 1994 and the gasoline was leaded? More