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direction of Eric Trevena. An excavator bucket was used to collect a sample from each location The samples were collected by removing the top 3" to 6" of soil in the bucket, then pushing a brass tube into the soil until completely filled. Soil samples were collected in clean six- inch-long brass tubes ( 2 " in diameter) . Tubes were covered at both ends with aluminum foil and sealed with plastic end caps The soil samples were then labeled, recorded on a Chain-of-Custody form, put in a cooler with ice and transported to Sequoia Analytical , Inc . located in Redwood City and walnut Creek, California UST Excavation Sampling Soil samples designated Tl through T6 were collected from beneath the fuel USTs in the excavation bottom in native soil near each end of the tanks Soil samples were collected at approximately 15 feet below grade surface (bgs ) . Soil samples designated UO and UOB, were collected beneath the used oil tank at approximately 12 feet bgs . Some of the chemical analyses for sample UO were inadvertently not included on the original Chain-of-Custody, therefore sample UOB was collected in the same approximate location as UO on March 4, 1997 to analyze for additional chemical compounds . . The used oil tank remote fill piping was sampled (RF-1 . 5 and RF2-2 5 ) at each end on September 11 , 1996 under the direction of Harlin Knoll, a inspector also with SJCPHS . The approximate sample locations are shown on Figure 2 Sample depths and chemical summaries are found in Tables A and B. Trench Sampling Trenches were excavated to expose and remove underground product piping and vent lines extending from the fuel UST complex to the service islands on September 9 , 1996 . Soil samples P1 through P7 were collected after piping was removed at depths approximately 1 1/2 to 4 . 5 feet below grade (Figure 2 ) . Samples were collected from the trench bottom and then handled as described previously. Sample depths and chemical analytical results are summarized in Table A. These samples were collected from locations designated by Eric Trevena in accordance with the RW4CB and County Guidelines Hoist and Sump Sampling One dual post hoist and two semi-hydraulic hoists were . removed and discrete soil samples were collected on Page 2