Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) Field Demonstration Report: Air Force Plant Number 6 Fuel Farm Dobbins AFB, Georgia

Abstract : A demonstration of the Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) approach for assessing human health risk at weathered petroleum release sites was performed at a former above ground storage fuel farm (FF) located at Dobbins Air Force Base, Marietta, Georgia. The fuel farm was used to store and dispense jet petroleum (JP) fuel, blend numbers 4, 5 and S (i.e., JP-4, JP-5 and JP-8) over a period of approximately 40 years, from the mid l950s through the early 1990s. Use of the FF was discontinued in 1993. A preliminary site characterization survey performed in 1997 detected total petroleum hydrocarbon (TPH) at concentrations ranging from 517 mg/kg to 2,239 mg/kg in four of eight grab samples of soil. A total of 15 primary soil samples were collected at depths ranging from 1.0 to 8.5 feet belowground surface to support the TPHCWG demonstration. Grab samples collected in Encore samplers from the sampling interval were analyzed by International Technology (IT) Corp. (EMAX Lab, Inc.) for TPH gasoline range orgaincs (GRO) and benzene, toluene, ethylbenzene and xylenes (BTEX). Soil composited from the sampling interval was split and subsequently analyzed by EMAX Lab for TPH diesel range organincs (DRO) and polycyclic aromatic hydrocarbons (PAHs) and by Operational Technologies (OpTech) Corp (Lancaster Laboratories) for aliphatic and aromatic hydrocarbons fractions.