AFS/Airport - ST009 JP4 Fillstands
Chemicals, Diesel, Gas, Petroleum Product
Past Work on Site
Two fuel islands, diesel to the east and JP-4 to the west, were located within the JP-4 fillstands source area. The current use of the fillstands is to provide distribution of JP-8 fuel. A JP-4 separator building (Building 1572) and a buried 2000-gallon waste fuel tank were located approximately 100 feet east of the fuel islands. A floor drain in the fuel/water separator building was connected to the waste fuel tank by a drain pipe. An underground diesel fuel pipeline extended west/northwest to east/southeast across the site approximately 100 feet north of the fuel island. The pipelines, originating from MGH, supplied fuel to the fillstands. The depths of the pipelines are not known. Petroleum contamination was found in the soil and groundwater. Air Force Installation Restoration Program Site ST009. This site is located adjacent to the Vehicle Maintenance Facility and past reports have combined the two sites occasionally. Petroleum contaminated soil remains within the source area. Groundwater contamination is extensive and still requires additional delineation. --Updated 2011-- Site ST009 includes two fromer USTS, two removed fillstands, a current sill stand, a 300 gallon AST, B1572, and portions of B1573. In April 2010 a Work Plan for Site Inspection, Remedial Investigation, and Site Characterization Former Galena Forward Operating Location, Alaska was developed. JP4 Fill-stands was identified as a candidate for the site characterization pathway. The goal of the site characterization pathway is to characterize the nature and extent of contamination both laterally and vertically. Target analytes at this site are: DRO, GRO, RRO, VOCs, PAHs, metals, PCBs, and pesticides. This site was also analyzed for possible analytes based on a 500ft radius from the site boundary. Based on the site use, the target analyte list for this site was not adjusted. August 2010 Results from the Second Triad meeting: Data from the on-site lab was available at for this site. Analytes that that the on-site lab can analyze for include: GRO, DRO, RRO, and BTEX. The on-site lab can also perform PCE and TCE screenings. The other target analytes for this site are sent to an off-site lab and the results were not available for discussion. This site will be re-visited once all data is available. On-site Lab data: BTEX screening level exceedances at SS009_GP017,GP009, GP013, GP012, GP014, GP004, GP011, GP003, GP001, GP005, GP008, GP006, GP015, GP007, and GP002. Seven additional step outs were approved: 1. North side of the Old abandoned pipeline (OAP), 2. North side of OAP, 2A. Next to corner of building, NE of GP008, 3. Step out from GP017, 4. Step out from Western samples, 4A. NW edge of plume, 4B. Western side, avoid the ditch Results from the Fourth Triad meeting: Data from the on-site lab was available at for this site. Analytes that that the on-site lab can analyze for include: GRO, DRO, RRO, and BTEX. The on-site lab can also perform PCE and TCE screenings. The other target analytes for this site are sent to an off-site lab and the results were not available for discussion. This site will be re-visited once all data is available. On-site lab results from the first set of step out locations: Step out locations ST009_GP0019, GP025, GP024, GP023, and GP020, were slightly above the screening levels (SL) for BTEX. ST009_GP021 showed 4,000J mg/kg GRO at 26 ft bgs, ST009_GP020 showed 2070mg/kg GRO at 26 ft bgs. It was agreed that there was no need to perform further step outs beyond the road at this site. The smear zone is delineated to the south and west, but not to the north and east. Additional stepout samples to the north and east were aproved in 2011.