- المجال: Government
- Number of terms: 15655
- Number of blossaries: 0
- Company Profile:
A U.S. Department of the Interior agency that oversees water resource management incuding the oversight and operation of numerous diversion, delivery, and storage projects the agency has built throughout the western United States for irrigation, water supply, and attendant hydroelectric power ...
A temporary rise in water levels resulting in inundation of areas not normally covered by water. May be expressed in terms of probability of exceedance per year such as 1-percent chance flood or expressed as a fraction of the probable maximum flood or other reference flood.
Industry:Engineering
Decayed organic matter. A dark fluffy swamp soil composed chiefly of decayed vegetation. A brown or black material formed by the partial decomposition of vegetable or animal matter. The organic portion of the soil remaining after prolonged microbial decomposition. See peat.
Industry:Engineering
Wind-deposited silt. A uniform aeolian deposit of silty material having an open structure and relatively high cohesion due to cementation of clay or calcareous material at grain contacts. A characteristic of loess deposits is that they can stand with nearly vertical slopes.
Industry:Engineering
Describes current water quality conditions for a large part of the United States freshwater stream, rivers, and aquifers. Describes how water quality is changing over time. Improves understanding of the primary natural and human factors that affect water quality conditions.
Industry:Engineering
One of five federal power marketing administrations that sell low cost electric power produced by federal hydro electric dams to agricultural and municipal users. The Bonneville Power Administration serves Idaho, Oregon, and Washington as well as parts of Nevada and Wyoming.
Industry:Engineering
A valve with a circular-shaped closing element that fits securely over an opening through which water flows. A valve that utilizes a disc moving at a right angle to the flow to regulate the rate of flow. When a gate valve is fully opened, there is no obstruction to the flow.
Industry:Engineering
A liquid that results from water collecting contaminants as it trickles through wastes, agricultural pesticides or fertilizers. Leachate may occur in farming areas, feedlots, and landfills, and may result in hazardous substances entering surface water, ground water, or soil.
Industry:Engineering
The U.S. Fish and Wildlife Service is the principal Federal agency responsible for conserving, protecting and enhancing fish, wildlife and plants and their habitats for the continuing benefit of the American people. FWS is an agency within the U.S. Department of the Interior.
Industry:Engineering
The lower, or bottom, layer of a lake or reservoir with essentially uniform colder temperatures. The lowest layer in a thermally stratified lake or reservoir. This layer consists of colder, more dense water, has a constant temperature and no mixing occurs. See stratification.
Industry:Engineering
All routine and extraordinary work necessary to keep the facilities in good repair and reliable working order to fulfill the intended designed project purposes. Maintaining structures and equipment in intended operating condition, equipment repair, and minor structure repair.
Industry:Engineering
