As the result of environmental concerns, the U.S. Military is installing Wash Facilities for various armored equipment at all applicable military facilities. The resulting wash water, which can result from cleaning tanks is collected, treated and released. The volume of wash water can be large and is intermittent. Therefore, equalization impoundments are required. Contaminants include oils, degreasers, glycols, diesel, JP8 and surfactants.

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