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Job No. 16-03017 June 10, 2003 Page 2 The project involved removal of product lines from the subject property by West Star Environmental Inc. (West Star). The product lines were removed from the approximate locations shown on Figure 1, Sampling Location Plan. At the time of our arrival at the subject site on April 30, 2003, the product lines were already exposed. At the location of the product lines, West Star had excavated subsurface soils to depths in the range of 4 to 5 feet below existing grade (see Figure 1, Sampling Location Plan). Following excavation of the product lines on April 30, 2003 a total of three (3) soil samples (S-1 @ 5.0', S-2 @ 5' and S-3 @ 5.0') were collected from beneath the product lines (see Figure 1, Sampling Location Plan). Soil samples were collected by driving 2 -inch by 6 -inch brass tubes into the soil. The sample locations and depths were chosen in consultation with Ms. Dina Abate, Environmental Health Specialist with the San Joaquin County Environmental Health Department. The soil samples were stored in an ice chest during transportation from the subject site and kept cool with "Blue -ice". The samples were picked up on the following business day by Castle Analytical Laboratory (CAL/EPA Department of Toxic Substance Control certified laboratory) of Atwater, California. Proper chain -of -custody protocol was maintained throughout the transfer. The soil samples were refrigerated during the overnight storage. fM, 019 0lDKy: /31►�1) The soil samples were accompanied to the analytical laboratory by a chain -of -custody form. Chain -of custody form was initiated at the time of sampling. Duplicate chain -of -custody form was placed in the project file. Chain -of custody documentation included the following information: ASR Engineering, Inc.