Hydropneumatic a water delivery system, usually small, that maintains water pressure in the distribution system by means of pressure in a compressed air tank.
Nekton assemblage of swimming organisms in a body of water.
Khor a dry watercourse; a ravine.Dripstone deposits of calcium carbonate that include stalactites, stalagmites, columns, and cave pearls; stone projection used to dispose of rainwater.High levels of nitrogen in water are usually caused by agricultural runoff or improperly operating wastewater treatment plants.Index of Biotic Integrity a multi-metric measure of biological condition developed from collection of data for fish or other organisms.Such processes include extended aeration, trickling filtration, and rotating biological contactors.Recharge rate the quantity of water per unit of time that replenishes or refills an aquifer.Displacement distance by which portions of the same geological layer are offset from each other by a fault.Macrointervebrate an animal without a backbone, large enough to be seen without magnification and unable to pass through.595 mm mesh.Well injection the subsurface placement of fluids into a well.
Safe yield the annual amount of water that can be taken from a source of supply over a period of years without depleting that source beyond its ability to be replenished naturally in wet years.
In Texas, the Water Year is from October 1 through September.
Langelier Saturation Index (LSI) an index reflecting the equilibrium pH of a water with respect to calcium and alkalinity; used in stabilizing water to control both corrosion and scale deposition.
Swape beam with which water is raised to irrigation ditches.
Mesotrophic reservoirs and lakes that contain moderate quantities of nutrients and are moderately productive in terms of aquatic animal and plant life.
Bioassessment monitoring the aquatic environment to determine the health of a stream.
Bioaccumulation uptake and retention of substances by an organism from its surrounding medium (usually water) and from food.Stream segment refers to the surface waters of an approved planning area exhibiting common biological, chemical, hydrological, natural, and physical characteristics and processes.Examples include hunting, fishing, boating, water-skiing, swimming, and some power production.Resilience the ability of an ecosystem to maintain or restore biodiversity, biotic integrity, and ecological structure and processes following disturbance.Electrodialysis a process which uses an electrical current and an arrangement of permeable membranes to separate soluble minerals from water.BOD Biochemical Oxygen Demand.Bank the sloping land bordering a stream channel that forms the usual boundaries of a channel.When a sewer is constructed this way, wastewater treatment plants can be sized to treat sanitary wastes only and all of the water entering the plant receives complete treatment at all times.Percolating waters waters passing through the ground beneath the Earth's surface without a definite channel.Lindane a pesticide that causes adverse health effects when present in domestic water supplies and is toxic to freshwater fish and aquatic life.Chlorine is the most commonly used disinfectant tirage au sort coupe du monde 2018 simulation for recycled water, potable water supplies, wells, and swimming pools. .