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ri � n <br /> John Pestana QTIP Trust <br /> �) Page 2 <br /> Resources <br /> A Ground Zero technician, Anthony Scoma, advanced hand auger borings (HBs) on July 10 and 11, <br /> 1997, and an experienced staff geologist, Jeanne Buckthal, completed soil descriptions and <br /> photoionization detector (PID) readings Argon Laboratories (Argon, ELAP #1873) and Sequoia <br /> Analytical (Sequoia, ELAP#1210)completed the laboratory analyses for all soil samples <br /> INVESTIGATIONS UNDERTAKEN <br /> On July 10 and 11, 1997, eleven (11) soil borings (HB 1 through HB 11) were advanced with a hand <br /> auger at the locations shown on Figure 2 Boring HB 1 was located adjacent to the former waste oil <br /> tank, HB2 and HB3 were in the vicinity of the former product lines, HB4 through HB6 were adjacent <br /> to the former underground storage tanks (USTs), HB7 was near the former northern pump island, and <br /> HB8 through HB 11 were along the northern property boundary I-Estoncal soil boring data, including <br /> site plans showing boring locations, are included in Attachment A <br /> FIELD ACTIVITIES <br /> Drillinia Methods <br /> Soil borings were hand-augered to depths ranging from 6 to 9 5 feet below ground surface (bgs) for <br /> the purpose of collecting soil samples Soil samples were collected by advancing the boring to a point <br /> immediately above the sampling depth, and then driving a percussion sampler containing a brass sleeve <br /> into the relatively undisturbed soil The sampler and brass sleeves were washed thoroughly with a <br /> laboratory-grade detergent and water before each use <br /> Soil cuttings were placed in one 55-gallon metal drum for temporary storage and will be transported to <br /> the Forward, Inc landfill in Stockton for disposal Rinsate water was contained in one 55-gallon poly <br /> drum, which was also used to store purge water generated during groundwater sampling completed on <br /> July 24, 1997 The groundwater sampling results were submitted under separate cover (August 13, <br /> 1997) Rmsate and purge water was transported by American Valley Environmental to a State <br /> licensed TSD Facility for disposal <br /> Soil encountered was logged for soil type and subjective evidence of petroleum hydrocarbons such as <br /> soil discoloration or petroleum odor The PID was used to evaluate the presence of volatile organic <br /> vapors in the soil After soil samples were collected, the borings were grouted to the surface with neat <br /> cement Field notes are included in Attachment B <br /> DLholo <br /> Soil encountered consisted pnmanly of lean clay to a depth of approximately 6 to 7 feet bgs, underlain <br /> by silt with fine sand to sand Odors were generally noted below a depth of approximately 6 feet <br /> pCstana.036\sumrpt doc <br />