Officials identified the source of the leak , shut down the pipeline temporarily , and began fuel recovery operations . Travis AFB began collecting and analyzing soil and groundwater samples to determine the nature and extent of the petroleum contamination . Beginning in October 2010 , Travis AFB conducted an excavation of the fuel‐contaminated soil along the pipeline . A Dual‐Phase Extraction ( DPE ) system was installed in 2013 to extract as much fuel from the subsurface as possible . After the DPE system was run , a chemical oxidant was introduced that stimulated the growth of naturally‐occurring microbes that broke down the remaining fuel into harmless compounds .
By January 2016 , it appeared that the oxidant had broken down the residual fuel . In order to verify that the cleanup is complete , two additional monitoring wells were installed to analyze water samples . In addition , multiple soil samples from different depths will be collected and analyzed for any sign of remaining fuel . All impacted property in the right of way is expected to be back to its original condition by the middle of 2017 .
Source : Site Assessment of the February 2009 Jet Fuel Pipeline Leak , http :// www . travis . af . mil / About‐Us / Environment / Search ; Biological Opinion for the Proposed Travis Air Force Base JP‐8 Pipeline , 2009
Findings
• A fuel leak from a pipeline serving Travis AFB was discovered in Suisun City in 2009 . Clean up was conducted and completed in 2017 .
• Travis AFB no longer utilizes the pipeline that resulted in a fuel leak . The current pipeline is operated by a computerized system that is equipped with leak detection .
ISSUE MINOR‐7
Clear Zone Not all of the Clear Zone for T land .
Compatibility Assessment
DOD airfields have designated safety zones com and accident potential zones ( APZ ) that extend runway . Development is a concern in these are where aircraft mishaps are more likely to occur recommendations for compatible land uses wit Incompatible development in these areas incre general public and aircraft crews .
The CZs have the highest risk because they are runway , where mishaps are most likely to occur recommends that only open space and agricult in the CZs . The CZs start at the ends of the runw wide by 3,000 feet long , covering about 413 acr CZs extend outside of the Base boundary , onto DOD does not own . Travis AFB holds three ease owners covering the 235 acres beyond the insta prevent development within the CZs .
Findings
• The CZs associated with the Travis AFB ai land beyond the installation boundary . T easements with the private property own incompatible development .
TSS Background Report