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samples were collected in clean brass sample tubes fitted within the split spoon sampler.'Immediately upon the opening of the sampler, the tubes were removed, the ends wrapped in aluminum foil, fitted with plastic caps, sealed with black electrical tape, labeled, and placed on dry ice. Advancement of the borings to groundwater in the area of VTB-1 and VTB-2 was determined to be unsafe due to the presence of overhead utility lines, buildings, and trees. As a result, drilling in this area was discontinued. Groundwater samples were collected from VTB-3 through VTB-5 by lowering a new, disposable bailer into each boring to a point immediately below the surface of the water. The water sample in each case was then transferred immediately to two Volatile Organics Analysis (VOA) vials and one 1 liter amber glass sampling bottle, promptly sealed with teflon -lined, screw caps, labeled, and placed on blue ice. Borings VTB-1 and VTB-2 were then grouted using a Portland cement -5% bentonite mix under the supervision of Ms. Eleanor Ratliff of the San Joaquin Local Health District. Slotted PVC casing was placed in boring VTB-3, VTB-4 and VTB-5 for the purpose of obtaining hydraulic gradient. Each of these three borings was sealed at the ground surface and the groundwater allowed to stabilize for a period of 24 hours. All sampling equipment and augers were steam cleaned prior to being brought on site and between all samplings. All tailings from the borings were placed in DOT drums on site as required by Ms. Ratliff. Subsequent to the above, an attempt was made to place a boring in the vacant field East of 1789 Charter Way. Due to the fact that this field had recently been well billed, the drilling rig was unable to enter the lot. As a result, it was decided to obtain the necessary water samples through the placement of well points. On August 24, 1989, one 7/8" diameter well point was inserted 30 feet into the soil using a Bosh Chip Hammer. As the clays were very stiff, the insertion of the well point was -made only after considerable effort (extraction of the well point also proved difficult). Upon the removal of the well point, it was found to be dry with no groundwater having been encountered. Due to the difficulties experienced during the well point insertion, this sampling approach was abandoned and a four-wheel drive drill rig was scheduled for August 30, 1989 so that sampling could be completed in this area. On August 16, 1989, hydraulic gradient was determined by Mr. Floyd; and exploratory soil borings VTB-6 through VTB-8 were advanced to groundwater and water samples obtained with equipment decontaminated as described above (See Site Map #2 for exact location of borings). Borings VTB-3 through VTB-8 were grouted as previously referenced, again as required by the San Joaquin '"' Local Health District.