I found the following information from this website http://www.homehealthtesting.com/how-long-does-alcohol-stay-in-your-system.html
"Pretty much everyone, regardless of age, size, or race, metabolizes alcohol at the same pace. That pace is .015 of blood alcohol concentration (BAC) per hour. So that means for every hour you are not drinking, .015 of the alcohol in your body is being metabolized and disappearing from your body (thanks to David J. Hanson, Ph.D. for this information). So, if your BAC was 0.08 (legally impaired), it would take about 5.33 hours for the alcohol to be eliminated from your body."
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