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An alphabetical listing of General terms and items. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Wastewater   Water that has been used. RO, ultrafiltration, electrodialysis The stream of water (not product water) created as a result of processing water -the reject water or condensate. Water (H2O)   The liquid that descends from the clouds as rain and forms lakes, streams and seas (ocean). Water is a major constituent of all living matter. An odorless, colorless, tasteless liquid which exists as ice in solid form (phase) and steam in vapor form (phase). It freezes at 32 degrees F/0 degrees C and boils at 212 degrees F/100 degrees C. Water Closet   A flushable toilet. Water Conditioning   The treatment or processing of water, by any means, to modify enhance or improve its quality to meet a specific water quality need desire or set of standards. Also called water treatment. Water Softening   The reduction /removal of calcium and magnesium ions, which are the principal cause of hardness in water.  Water Source   The basic origin of a water , either a surface source (such as lake, river or reservoir) or a subsurface source ( such as well). After treatment and pumping via pipelines, the treated and pumped water becomes a water supply. Water Table   The level of the top of the zone of groundwater saturation. Waterborne Disease   A disease, caused by bacterium or organism able to live in water, which can be transmitted by water. Watertight   A condition existing in water treatment equipment and materials of such precision of construction and fit as to be impermeable to water unless sufficient pressure occurs to cause rupture. WHO   World Health Organization. Back to top