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.
1 Cost for a single-story 2,000-square foot home with around 180 linear feet of gutter is about $90-$225. clean gutter is designed to draw water away from a home's foundation, according to Do It Yourself.com. When a gutter overflows with debris, it may also cause roof damage.A gutter cleaning service may be priced by the square footage of the home, or the linear foot of gutter.