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1.0 INTRODUCTION <br /> The project site is located at 3931 Newton Road, in an industrial area on the northeast outskirts of <br /> Stockton near U S Highway 99 The location of the site is shown in Figure 1, and the site facilities <br /> are shown in Figure 2. Originally agricultural property, the site was developed as a commercial <br /> truck terminal in 1973 The property occupies an area of about 3 5 acres <br /> Topography in the area is generally flat, although the project site is elevated several feet above the <br /> adjacent parcels There is a maintenance building and office fronting Newton Road, with a large, <br /> unpaved storage yard/parking lot in the rear A diesel and gasoline fueling facility, consisting of two <br /> underground storage tanks (UST's), was formerly present on the south side of the storage yard <br /> (Figure 2) This facility was removed in 1989 and replaced with an aboveground fueling facility, <br /> which is located to the west of the abandoned facility <br /> 2.0 PROCEDURES <br /> Groundwater monitoring took place on January 2 The wells were opened and allowed to equalize <br /> with atmospheric pressure before water depths were measured The depth to groundwater was <br /> measured with a water level meter and the measurements were recorded on the Well Monitor <br /> Report(Appendix A) <br /> The wells were purged of standing water before samples were collected Well GT-10 was not <br /> purged or sampled because the water level was below the bottom of the well All of the other wells <br /> purged slowly, and the purged water was undsually muddy The wells were also slow to recharge <br /> All three of these conditions were due to the low water level, which was below the base of the first <br /> aquifer, at the level,of the underlying aquitard That zone consists of silt and clay <br /> After purging, samples were collected in disposable plastic bailers and transferred to 1-liter amber <br /> bottles Samples were also collected at the tap on the domestic well (G-1) The samples were <br /> labeled and placed into a cooled ice chest, and then shipped to McCampbell Analytical for analysis <br /> All samples were analyzed for TPH-diesel The laboratory report is contained in Appendix B <br /> One well (GT-2) was buried under road base, and GT-9 was stili buried under a pile of broken <br /> concrete Gillies personnel cleared the road base from GT-2 on January 3, and Upgradient <br /> personnel returned to the site to purge and sample that well However, after purging was completed, <br /> the pump became lodged in the well and could not be extracted, preventing sampling of the well <br /> Personnel from V&W Drilling were retained to assist on January 6 and again on: January 9, but <br /> were unable to remove the pump <br /> 2 <br />