1. a colorless oily fuming liquid, N2H4, used as a reducing agent and a jet-propulsion fuel. 2. a class of substances derived from this substance by replacing one or more hydrogen atoms by an organic group.
More than 150 companies and government entities could be asked to cover their share of the cleanup costs. On Nov. 18, the EPA submitted a nearly $1.4 billion cleanup option for the Portland Harbor Superfund site to the National Remedy Review Board, which serves as a peer review panel for Superfund projects.
In December 2009, EPA announced the largest Superfund settlement in EPA history. Out of a global bankruptcy settlement totaling $1.7 billion for environmental cleanups at contaminated sites across the country, about $494 million will go toward Superfund cleanup in the Bunker Hill Superfund site.ut of a global bankruptcy settlement totaling $1.7 billion for environmental cleanups at contaminated sites across the country, about $494 million will go toward Superfund cleanup in the Bunker Hill Superfund site.