U.S. EPA Contaminated Site Cleanup Information (CLU-IN)

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Travis Air Force Base Fact Sheet, 2 pp, 2017

Fuel releases were detected in 2009 from a pipeline formerly used to deliver kerosene-based JP-8 jet fuel to Travis AFB. After Travis AFB stopped the leak and finished initial responses to protect human health and the environment, the field team used several cleanup technologies to remove the fuel hydrocarbons as efficiently and cost effectively as possible. Initially, passive skimmers were used to collect the fuel that floated on the water table, followed by dual-phase extraction to remove both fuel and contaminated water. With the addition of vacuum extraction, the system removed over 7,700 lb of fuel constituents in less than a year. Although injections of oxygen-releasing compound were implemented for biodegradation of fuel constituents in the contaminated soil, complete cleanup of residual fuel from the clay-rich soil required a more aggressive technology, and a Vapor Energy Generator (VEG) system was used to achieve fuel concentration reductions in the 96-99% range. The VEG system used steam injected into the subsurface to heat the soil, mobilize the fuel constituents, and speed up fuel removal. The system routed extracted fuel back into the burner assembly for destruction, and the extra heat generated more steam to keep the cleanup process going. http://www.travis.af.mil/Portals/30/documents/Final%20Sixth%20Jet%20Fuel%20Leak%20Fact%20Sheet%2003-14-2017.pdf

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