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1 <br /> vials All samples were labeled, placed m an ice chest, chilled on Blue Ice to 4° C, and transported to <br /> ' an FLAP-certified laboratory for analysis using appropriate chain-of-custody procedures <br /> The results of all current and previous groundwater soundings are summarized in Table 1 The average <br /> ' depth-to-water on February 8, 2000 was 10 70 feet below the top of the casing elevation of the <br /> three project monitoring wells At that time, the local direction of groundwater flow (utilizing <br /> elevation data from the monitoring wells) was calculated at approximately Nl 60E along a gradient <br /> ' of 0 008 foot/foot (equivalent to 8 feet of dap per 1000 feet of horizontal distance) (see Figure 2) <br /> ' TABLE 1 <br /> HISTORICAL GROUNDWATER SOUNDING DATA <br /> Port of Stockton Former UST Site No 3, San Joaquin County <br /> Well Date Depth To Casing-Top Water Table Avg. Flow Direction <br /> Number Sounded Water(Ft) Elevation (Ft) Elevation (Ft) & Gradient(FtM) <br /> MW3-1 07/09/99 1110 935 -175 East Northeast <br /> @ 0 004 ft/8 <br /> 10/22/99 1140 -205 North 400 degrees west <br /> @ 0 024ft/ft <br /> 02/08/00 1099 -164 North 16°degrees east <br /> @ 0 008ft/ft <br /> MW3-2 07/09/99 10119 922 -167 <br /> 10/22/99 1180 -258 <br /> 02/08/00 1089 -167 <br /> MW3-3 07/09/99 1039 874 -165 <br />' 10/22/99 1088 -214 <br /> 02/08/00 1023 -1 49 <br /> rWell Sampling and Monitoring Logs are included as Appendix B <br />' Groundwater Sampling and Analyses <br />' Groundwater samples collected from the monitoring wells on February 8, 2000 and analyzed for Total <br /> Petroleum Hydrocarbons as gasoline (TPH-g) by EPA Modified Method 8015, aromatics benzene, <br /> toluene, ethylbenzene, and total xylenes (BTEX) constituents by EPA Method 8260 No gasoline as <br /> free product was observed to any well <br /> 1 The results of all current and previous groundwater sampling analyses are summarized in Table 2 <br /> Precision Envu-o-Tech laboratory report dated February 8, 2000 and chain-of-custody are included as <br /> Appendix B <br /> r <br /> r <br /> ust sLte3 gtr3 aoc 4 <br /> r <br />