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tBank of Stockton Cuttei Lumhet Site Page 6 <br /> Quaiteily Gioundwatei Monitoring Report <br />' Pioject No 1022 <br /> August 19, 2002 <br />' 3.0 DISCUSSION <br />' 3.1 Discussion of Data <br />' Field and analytical data results are summarized in Tables 1 and 2 and <br /> illustrated in Figures 3 through 5 <br />' The map of groundwater gradient (Figure 3) suggests that the flow of <br /> gxoundwatex is to the northeast The watei table has fallen almost a foot since <br /> the last monitoring event in March of 2002 The direction and gradient of flow <br />' have remained generally consistent over the entire time the wells have been <br /> monitored <br />' In general, the analytic data suggest that contaminant levels are gradually <br /> decreasing except in the area of NIW-813 and MW-7, near the core of the plume <br /> It appears that the lateral extent of the contaminant plume may also be <br />' gradually decreasing The wells MW-10 and MW-11, at the distal periphery of <br /> the plume have been producing samples with non-detectible levels to petroleum <br />' contaminants <br /> 3.2 Future Work Schedule <br />' Quaiterly groundwater monitoring and sampling should continue Recently, <br /> Geo-Phase Environmental submitted a Work Plan that proposed pilot level <br />' remedial work to investigate possible methods to achieve an adequate level of <br /> mitigation of this site The Woik Plan has been approved by the LOP agency, <br /> and a detailed budget coveting thc, work has been submitted to the State UST <br /> IClean-up Fund foi pre-approval of the associated costs <br /> I <br /> • <br /> 2937 Veneman Ave ,#B240 Geo-Phase Environmental Inc Phone (209) 569-0293 <br /> Modesto, CA 95356 Fax (209) 569-0293 <br /> I <br />