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September and October 1994. <br /> IGroundwaterg radient was calculated to be 0 00048 ft/ft directed due south during the <br /> September monitoring. The gradient during the October monitoring was calculated to be <br /> 0 0013 ft/ft directed N 560 E The September gradient is significantly more shallow than <br /> previous monitorings, and represents a 100 degree change in flow direction. The October <br /> monitoring shows a return to previous flow direction and gradient. Figure 3 and Figure 4 <br /> illustrate the relative groundwater elevations and gradient directions <br /> 4.2 Analytical Results of Groundwater Samples <br /> No petroleum hydrocarbons were detected in any of the samples collected during the <br /> September 1994 monitoring The analytical results are summarized in Table 2 The <br /> laboratory report and chain-of-custody are included in Appendix B <br /> TABLE 2 <br /> ANALYTICAL RESULTS OF WATER SAMPLES <br /> Genova Bakery <br /> 749 North Sierra Nevada Street, Stockton, California <br /> (Ag(L) <br /> Sample ID Gasoline Benzene Toluene benzene Xylene <br /> MW-816-16-94 ND ND ND ND ND <br /> MW-8/9-16-94 ND ND ND ND ND <br />' MW-9/6-16-94 ND ND 052 ND 29 <br /> MW-9/9-16-94 ND ND ND ND ND <br /> EW-1/6-16-94 ND ND ND ND ND <br /> EW-1/9-16-94 ND ND ND ND ND <br /> Ag/L = parts per bAhon(ppb) <br /> ND = None Detected <br /> 5.0 CONCLUSIONS & RECOMMENDATIONS <br /> 5.1 Hydrocarbon Impacted Groundwater <br /> Monitoring wells MW-8 and MW-9 were installed to investigate the extent of hydrocarbons <br /> in groundwater MW-8 was installed near MW-1, MW-9 was installed near MW-3,well EW- <br /> 1 is located near MW-2. In 1988, free product was present in MW-1 and MW-2 The <br /> groundwater flow direction in 1988 was north-northeast. Because of the installation of the <br /> VES and the sharp drop in groundwater depths, no groundwater monitoring activities were <br /> 0-1-s-1 w.ee s<�8.e <br /> C--B."Qws.vwn 1 <br />