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. September 9 , 1996 from beneath each hoist post after removal at approximately 8 feet bgs . Soil samples were designated H1 through H4 . One sample (HT) was collected beneath the dual foist hydraulic tank (approximately 35 gallons ) - at 6 feet bgs and one sample (SUMP) was collected beneath the oil/water separator at approximately 5 feet bgs . Sample locations are shown in Figure 2 and chemical summaries are found in Tables A and B. - OVEREXCAVATION ACTIVITIES Soil remediation involved the limited excavation and removal of suspected or confirmed hydrocarbon impacted soils . Soils were overexcavated from the fuel UST complex, center (dual post) hoist area, and former pump islands . Overexcavation and associated sampling activi.tes were performed on September 11, 1996 and October 9 , 1996. Overexcavation and sampling activities were performed under the direction and observation of Harlin Knoll, inspector and representative with San Joaquin County Public Health Services . Hoist Overexcavation On September 11, 1996 additional soil was excavated around the vicinity of the dual post hydraulic hoist where the • initial sample H4 was collected. The soil around the former hoist was removed and the final excavation measured approximately 4 feet in width, 5 feet long and 8 1/5 feet in depth. Soil sample HX-8 . 5 was collected in the bottom of the excavation beneath former sample H4 . See Figure 3 for sample location and Table A for analytical summary. Fuel UST Overexcavation The original fuel UST excavation was extended vertically to approximately 17 to 18 feet -bgs on September 11, 1996 . Additional excavation bottom samples were collected and designated TXB1, TXB2 and TXB3 . Excavation sidewall samples designated TXS1 through TXS6 were also collected at depths between 14 to 16 feet bgs as shown in Figure 3 . Sample depths are found with chemical summaries in Table C. After receiving chemical analytical data from September 11, 1996 sampling, additional excavation was performed on October 9, 1996 . Overexcavation continued along the southern sidewall approximately 5 feet and vertically to 19 feet bgs in the vicinity of former samples TXB1 and TXS3 . A soil sample designated OXB1 was collected from the excavation bottom beneath former sample TXB1 at approximately 19 feet bgs . And sidewall sample OXS1 ,was collected at approximately 16 . 5 feet bgs in the vicinity of former sample TXS3 . The final fuel UST excavation dimensions were approximately 37 Page 3