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.
Just like the cost to repair heating oil tank, remediation costs vary based on location. For example, a cleanup for an underground tank leakage in New York may cost $20,000 or even more. In New Hampshire, oil cleanup in a residential area costs at least $15,000.