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)