See previous POLREPS.
During this reporting period the Responsible Party's contractor, ERM Inc., continued weekly oil extraction activities. The total liquids extracted thru 12/31/06 includes 41,973 gals of contaminated water and 3,983 gals of fuel oil. Weekly extraction events will continue.
ERM and Fogle's personnel will continue to inspect and replace sorbents in the creek as part of the required work under this AOC.
Work Initiated Under the Final Abatement Plan:
Air injection points for the bioventing system were installed during the earlier portion of December 06. Soil cuttings and trench soils were
subsequently sampled at a frequency of one discrete soil sample for every 20 cubic yards of material excavated (i.e., 5 discrete soil samples
per 100 cubic yards of material) and submitted to Phase Separation Science, Inc. for laboratory analysis of TPH-GRO and DRO by EPA Method SW-846 8015B. This data will be used to determine the
concentration of petroleum hydrocarbons present in the soils and for documenting the proper disposal of impacted soils.
ERM performed the baseline sampling of soils at the Facility in the area of the proposed bioventing system. Borings were completed to the water table, at a depth of 30 feet below grade. Soils were screened with a flame-ionization detector (FID) for the presence of volatile organic compounds (VOCs) in order to determine the most impacted sample interval and submitted to Phase Separation Science, Inc. for analysis of
TPH-GRO and DRO, both via method 8015B. A total of eleven field samples plus a trip blank and duplicate sample were submitted for
analysis.
Connection to the blower unit will occur by the end of January, 2007 pending approval from utility company. This activity is part of the Final Abatement Plan.
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