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Drill cuttings from the three bonngs were laid on plastic sheetmg on the east side of the existing stockpile The augers were steam-cleaned between bonngs, and the auger rinseate water was contained in two 55-gallon drums near the soil stockpile Beginning at a depth of 10 feet, soil samples were collected every 5 feet, using a spht-spoon sample barrel loaded with clean brass sample tubes Organic vapor readings and other observations were noted on the boring logs (see Appendix A), and selected samples were capped, sealed, Iabelled, and placed in a cooled ice chest prior to shipment to Excelchem Analytical Laboratory in Roseville, California The chain-of-custody form is included in Appendix B 3.2 Well Completion Initially, saturated conditions were first encountered at a depth of approximately 60 feet m VM-2 and 50 feet in VM-3 After approximately 20 minutes, groundwater stabilized near 46 feet Both wells were completed with 2-inch-diameter PVC casing, screened between 60 and 45 feet (Appendix A) The sand pack extends from 60 to 43 feet, and hydrated bentonite extends from 43 to 41 feet The wells were grouted from 41 feet to the surface with Portland cement, and a well box was installed flush with the concrete 3.3 Water Sampling Groundwater mornntonng took place on July 8 The depth to groundwater was measured with a Solmst water level meter approximately 30 minutes after being opened Depth measurements were made from the north edge of the well casing (Appendix C) The depth to the bottom of the well was also measured, and used to calculate the volume of water m the well The elevations of the top of the well casings were surveyed with a builder's level to the nearest 0 01 foot VM-3 was developed by pumping approximately 45 gallons of water with a Grundfos Readyflow-2 submersible pump The moderately turbid purge water was stored in a 55-gallon drum near the soil stockpile Approximately 15 gallons of water were pumped from VM-1 Dunng purging, a Coning Checkmate pWconductivrty meter was used to measure the temperature, pH, and conductivity of the purge water to detennnme when these parameters stabilized After purging, water samples were collected from both wells in three 40-m1 vials and one 1-liter amber bottle The very high turbidity m VM-2 caused the pump to clog after only 2 gallons had been pumped Attempts to hand bail the well were also unsuccessful, due to the large volume of sediment at the bottom of the well and the exceedingly slow recharge rate Therefore, this well was not sampled until after it had been thoroughly developed by V & W Drilling on July 10 Upgradnent sampled it on July 11, using the same procedures that had been used to sample VM-1 and VM-3 Water samples were labelled and placed m a cooled ice chest and transported under chain of custody to Excelchem Analytical Laboratory The chain-of-custody form is included in Appendix B • 3