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and soil samples were taken from the last two borings. All auger ' holes were filled with cement. Soil samples were collected by the geologist, placed in properly prepared brass sleeves, sealed, labeled ' transferred to FGL Environmental under proper chains ofved custodyd TPH-G, (Exhibit H. ) Samples were analyzed for STEX, lead. The results of soluble that & analysis revealed that Toluene, ' Ethylbenzene, Xylene, & TPH_G were detected in the samples from auger hole #4, (at the north, ) and trench #3 at the south; others were below detection limits. The results of the laboratory analysis is summarized on Table II; copies of the lab reports are included in Exhibit H. After reviewing the results of the field work and laboratory ' analysis, an Addendum to the existing workplan November iB, 1991was submitted on , proposing to do additional investigative work an an attempt to define the limits of contamination. That Addendum is included as Exhibit I. WORK DONE UNDER ADDENDUM DATED NOV. 16, 1991: Work commenced on November 21 , 1991 , under the supervision of Wm. Hunter, RG. Del--Tech Geotechnical Services employees Don Light & Randy Ramero arrived on location at 9: 15AM, and unloaded ' equipment consisting of 5 ' long, 2" OD solid stem flights, and a carbide auger bit. A 3 1/411 OD hand-auger with b ' extensions was also unloaded. Equipment also included a portable steam cleaner, and a electrical generator for operating a rotary hammer used for ' advancing the 2" flights. After reviewing prior work and the current workplan addendum, a ' location was selected 50 feet west of the site of the removed UST; at is identified as Auger "A" on Plate VII. Using the rotary hammer operated by Don Light, a 2" hole was advanced with much difficulty; the soil was a very plastic sticky bluish-grey to tan clay which extended to the bottom of the auger hale. Occasional small lenses of sandy clay were noted. Some slight odors were noted on fresh surfaces, but no visible contamination could be seen. Using a Thermo Environmental Instr. Co. Model 5808 OVM FID meter, calibrated for Benzene, a sample at 7' was placed in a sealed plastic tube & allowed to warm for several ' minutes. The probe of the RTD meter was pushed through the Plastic end cap of the tube and yielded a reading of 22 Another soil sample was taken from the fans of the auger fight ' at 9 '6" and placed in a fresh plastic tube. Using the same procedure, a reading of 6advanced to a final depth ofpP�v4was obtained. The hole was bottoming in very sticky, 4