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.
Washington Cleanup Sites. Use the table below to find information about EPA cleanup sites in Washington. Click on the small triangle near the column heading to sort the information by state, city, title (site name), type of site. Note: NPL = National Priorities List (aka Superfund).