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.
BP oil spill 2010: How much will it cost? The BP oil spill will cost an estimated $12.5 billion or more. BP announced Monday it will pay for all cleanup costs in the Gulf of Mexico. May 3, 2010. Technical experts crowd a conference room at British Petroleum offices in Houston on May 2.