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ISSUE 2: What is the difference between an animal unit and animal threshold numbers ?

April 26, 2017Animal difference ISSUE Numbers threshold

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ISSUE 2: What is the difference between an animal unit and animal threshold numbers ?

1 Answer

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RESPONSE: The term, “animal unit” (AU), refers to a unit of measurement to administratively compare sizes of animal feeding operations among different species of animals. It was defined by the U.S. Environmental Protection Agency in 1976 for the purpose of administering the federal National Pollutant Discharge Elimination System (NPDES) regulatory program.