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(YVATC predominantly south to southwest. A review of groundwater analytical data collected to date indicates the dissolved hydrocarbon plume has been essentially defined in the south, and west directions and is inferred in the north (upgradient) and east (crossgradient) directions. Even though the plume boundary to the north is inferred, field observations and PID measurements of the soil sample collected from boring SB-10 in the capillary fringe, and analytical data from the soil sample analyzed from that boring indicate that groundwater at that location is likely not impacted by petroleum hydrocarbons. A sample of the floating product from well MW-2 was analyzed in January 1996 for a fuel fingerprint by Sequoia Analytical of Redwood City, California, and the product was identified as weathered diesel fuel (Smith Technology, May 1996). Total petroleum hydrocarbons as diesel (TPHd) was subsequently added to the analysis suite in September 1996 and dissolved hydrocarbons the gas and diesel range have since been detected in water samples collected at the site. Groundwater samples analyzed by EPA method 8260 have not detected the presence of methyl tertiary butyl ether (MTBE) or other fuel oxygenates above laboratory detection limits. Free product was been monitored and removed from MW2 on a monthly basis from the time a passive skimmer was installed in this well on June 27, 1997 until December 1999. Due to the minimal amount of free product being recovered (<0.5 liters per quarter) in comparison to the relatively large capacity of the skimmer's recovery reservoir (>2 liters), the free product skimmer has been monitored only on a periodic basis and at minimum once per quarter, beginning in March 2000. During the Third quarter 2000, a total of less than 0.1 liters of product was removed. To date a total of approximately 17.04 liters of product have been removed from the skimmer placed in MW2. A summary of product volume removed and previous product analytical data is presented in Table 3. During a project meeting on August 9, 2000, which was attended in part by Mr. Jeff Wong and Ms. Margaret Lagorio of PHS/EHD, the need for additional subsurface characterization was discussed in order to evaluate the site as.a candidate for No Further Action. PHS/EHD formally requested this additional work in correspondence dated August 14, 2000. SCOPE OF WORK In brief, the scope of work will include the advancement of four additional soil borings at the project site in an effort to determine the vertical and horizontal extents of petroleum hydrocarbons at the site. Two of the borings will be placed where floating product was observed during previous drilling activities to investigate the vertical extent of contamination and to determine whether free product remains at the site. The two remaining soil borings will be paced north and east of MW2 to define the lateral extent of petroleum hydrocarbons in these directions. 92054.00WREPORTSMORKPLANDOC 3