A bund consists of: an impervious bund wall or embankment surrounding the facility or tanks. an impervious floor within the bunded area. any joints in the floor or the wall, or between the floor and the wall.
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Tucson Turquoise offers many varieties of turquoise jewelry, with an emphasis on American Southwest turquoise. The following is a list of turquoise varieties from the American Southwest, mainly mines located in Nevada and Arizona.