The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund, was enacted by Congress on December 11, 1980. This law created a tax […]
A voluntary legal agreement between a landowner and a land trust or government agency that permanently limits uses of the land in order to protect its […]
A cross-flow turbine is drum-shaped and uses an elongated, rectangular section nozzle directed against curved vanes on a cylindrically shaped runner. The cross-flow turbine allows water […]
Dichloro-diphenyl-trichloroethane was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to combat malaria, typhus, and […]
An upstream eel passage constructed by providing a hole through flashboards, surface gates, or other structures near the crest of the dam. By passing trawl netting […]
Denil designs are a family of baffled-chute ladders that utilize roughness elements (i.e., baffles) to dissipate the kinetic energy of water moving through a flume to […]