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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

Gallinea Ferruginea   One of several types of bacteria that use iron in their metabolism and are capable of depositing gelatinous ferric hydroxide. Also known as iron bacteria. Germicidal Ultraviolet   An ultraviolet light that peaks at a 2,537 angstrom wavelength and is in a wavelength that lies between 200 and 300 nanometers. This is known as the germicidal or short-wave ultraviolet band. Giardia   A common waterborne protozoan that forms cysts and is resistant to disinfectants such as chlorine and ultraviolet light. Giardia can be removed by filters that all particles of four microns and greater in size. Giardia Lamblia   A type of cyst found in the intestines of mammals and in water contaminated by mammal droppings. The giardia lamblia cyst, which is common and is frequently carried by water, is capable of causing a contagious waterborne disease characterized by acute diarrhea. This disease is referred to as beaver fever, because beaver droppings can contain giardia lamblia. Groundwater   Water found beneath the surface of the ground. Ground water is primarily water which has seeped down from the surface by migrating through the interstitial spaces in soils and geologic formations. Back to top