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.
Prices for post-construction cleanup vary, of course, but the average price for a residential job is $500-$800. For commercial cleanup, budget anywhere from $0.10 to $0.50 per square foot, depending on the type of cleaning.bviously, a light cleaning is less expensive than a deep cleaning. 1  For large commercial properties, rough interior cleanup might cost $0.10-$0.30 per square foot. 2  For a 25,000-square-foot building, that works out to $2,500-$7,500. 3  For a 100,000-square-foot building, thatâs $10,000-$30,000.