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Travis Air Force Base Fact Sheets

This database holds fact sheets on Travis Air Force Base weapons, organizations, inventory, careers and equipment. Air Force fact sheets contain up to date information and statistics. If a fact sheet is not listed, please contact the 60th Air Mobility Wing Public Affairs office at 60amwpa@us.af.mil. 

Fact Sheets Graphic

Travis Air Force Base Fact Sheets

This database holds fact sheets on Travis Air Force Base weapons, organizations, inventory, careers and equipment. Air Force fact sheets contain up to date information and statistics. If a fact sheet is not listed, please contact the 60th Air Mobility Wing Public Affairs office at 60amwpa@us.af.mil. 

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SS015 - Former Solvent Spill Area







Vegetable Oil Injection Equipment

The Solvent Spill Area covers about 1.4 acres in an area previously used for stripping paint from aircraft and includes Facilities 550 and 552. Building 552 consisted of a fenced, bermed concrete pad that was formerly used as a temporary hazardous waste collection point.  Facility 550 contained a corrosion control facility that treated and painted aircraft parts and support equipment.  A metals-processing shop in Facility 550 used cadmium-based plating solutions.

The soil was contaminated with PAH and metals. The Air Force conducted a soil removal action in June 2003 to excavate the contaminated soil and place it in a Corrective Action Management Unit.  In 2004, Facilities 550 and 552 were demolished to construct a POL (petroleum, oil and lubricants) MILCON (military construction) project that consisted of an office building, a fuel truck maintenance building, and a large concrete truck-parking lot.  The North/East/West Industrial Operable Unit Soil, Sediment and Surface Water Record of Decision (ROD) selected Land Use Controls (LUCs) to prevent the exposure of cadmium-contaminated soil beneath a small section of the parking lot.

The primary groundwater contaminants are trichloroethene, cis-1,2-dichloroethene, vinyl chloride, and tetrachloroethene.  The Air Force Center for Engineering and the Environment in conjunction with Parsons ES, Inc. conducted an enhanced bioremediation study at this site. The study involved the injection of vegetable oil into the subsurface below the water table. The purpose of this study was to demonstrate the viability of enhanced bioremediation of chlorinated solvents in soil and groundwater at Travis AFB. After two years, the project was terminated to support the construction of the POL MILCON facility. The vegetable oil did initiate the breakdown of solvents in groundwater, but there was insufficient oil to complete the cleanup process. The second picture above shows the vegetable oil injection equipment used during the study.

To support the selection of a long-term groundwater remedy, the base injected emulsified vegetable oil (EVO) into the groundwater to restart the bioremediation of the remaining solvents. Based on the results of this follow-on technology demonstration, the Travis AFB Groundwater ROD selects EVO injection in the portion of the plume with the highest contaminant concentrations and enhanced attenuation in the downgradient portion of the plume.  The groundwater remedy was installed in 2015, and monitoring of the final groundwater remedyu is ongoing.