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August 5, 1988 AGS Job No. 38033-1 <br /> Marlowe Properties, Stockton, California <br /> RECOMMENDATIONS <br /> Applied GeoSystems recommends that additional subsurface work be <br /> conducted at the site. This work should include delineati,on.of <br /> the horizontal extent of ground-water contamination. Additional <br /> monitoring wells should be installed in the inferred downgradient <br /> and lateral directions of ground-water flow. At least one <br /> monitoring well should be installed in the upgradient direction of <br /> ground.-water flow. Proposed monitoring well locations are shown <br /> on the Generalized Site Plan (Plate P-2) . This work will enable <br /> Applied GeoSystems to calculate the actual ground-water flow <br /> direction and allow an indication of the extent of ground-water <br /> contamination. Sampling methodology and monitoring-well <br /> construction details should follow protocol presented in this <br /> report and used in our initial investigation. Applied GeoSystems <br /> also recommends that a selected soil sample and the ground water <br /> be analyzed by EPA Method 8240 to help identify other chemicals <br /> which may be present in the subsurface. <br /> 14 <br /> Aiop/led GOOSYSMMS <br />