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vials All samples were labeled, placed in 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 suI of all current and previous groundwater soundings are summarized in Table 1 The average <br /> depth-to-water on May 17, 2000 was 9 68 feet below the top of the casing elevation of the three <br />' project monitoring wells At that time, the local direction of groundwater flow (utilizing elevation <br /> data from the monitoring wells) was calculated at approximately E220S along a gradient of 0 012 <br /> foot/foot (equivalent to 12 feet of dip 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(Ft/Ft) <br /> MW3-1 07/09/99 1110 935 -175 East Northeast <br /> @ 0 004 ft/ft <br />' 10/22/99 1140 -205 North 40°degrees west <br /> @ 0 024ft/ft <br /> 02/08/00 1099 -164 North 16°degrees east <br /> @ 0 008ft/ft <br /> 05/17/00 1008 -073 East 220 degrees south <br /> @ 0 012ft/ft <br /> MW3-2 07/09/99 1089 922 -167 <br /> 10/22/99 1180 -258 <br /> 02/08/00 1089 -167 <br />' 05/17/00 967 -045 <br /> MW3-3 07/09/99 1039 874 -165 <br />' 10/22/99 1088 -214 <br /> 02/08/00 1023 -149 <br /> 05/17/00 929 -055 <br /> 1 Well Sampling and Monitoring Logs are included as Appendix B <br />' Groundwater Sampling and Analyses <br />' Groundwater samples collected from the monitoring wells on May 17, 2000 and analyzed for Total <br /> Petroleum Hydrocarbons as gasoline (TPHg) 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 in any well <br />' The results of all current and previous groundwater sampling analyses are summarized in Table 2 <br /> Precision Enviro-Tech laboratory report dated May 17, 2000 and chain-of-custody are included as <br /> Appendix B <br /> ost s te3 qtr4 a0 4 <br />