HOVENSA self disclosed on August 5, 2005 that it used the incorrect equation to calculate the Reid vapor pressure (RVP) for 39 batches of gasoline. Upon recalculation, one of these batches, comprising 2.9 million gallons of gasoline, was found to exceed the volatility standard of 9.0 pounds per square inch (psi).
HOVENSA requested that EPA apply its Final Policy Statement entitled Incentives for Self-policing: Discovery, Disclosure, Correction, and Prevention of Violations ( Audit Policy ). EPA agreed that HOVENSA has satisfied all of the conditions set forth in the Audit Policy, except for systematic discovery of the violations.