# Calculation of Tank Turnover to Achieve 0.3 Vol. % MTBE in Gasoline Storage Tanks

## The following equation can be used to determine the number of tank refills for any initial MTBE concentration:

## N = -(0.523+LOG (Co))/ LOG (VL/VT)

## Where: N = Number of tank turnovers (rounded up to the next integer

## Co = Initial MTBE concentration (in vol. %)

## VL = Volume of tank still full before refilling (in gallons)

## VT = Tank capacity (in gallons)