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SECOND QUARTER REPORT[' KWIKEE FOODS 2081 Country Club Boulevard Stockton,California June 1, 2001 lEX1EC17f'aVIF, SUMMARY Groundwater monitoring took place on May 17, 2001. The depth to groundwater was measured with a water level meter after all seven wells were opened and allowed to stabilize for approximately 15 minutes. A Grundfos submersible purge pump was used to purge the wells of standing water, which was stored in DOT-approved drums on site. After purging, seven water samples were collected in glass vials and transported to the laboratory, where they were analyzed for Total Petroleum Hydrocarbons as gasoline, BTEX, and MTBE. The hydraulic gradient map derived from groundwater depth measurements is highly unusual. The static water level in two wells in the central portion of the site (KF-1 and KF-2) is higher than in wells to the north or south, implying that groundwater is slightly mounded in the central portion of the site and the piezometric surface slopes slightly in both directions away from this mound. This is the first time since monitoring -began in 1994 that this situation has been observed. Hydrocarbon concentrations remain below detection Iimits in all but, two wells. TPH-g, benzene, and MTBE were detected in the two wells near the southwestern corner of the site (KF-3 and KF- 5), and xylene was also detected in KF-3. These results duplicate those that were obtained in the first quarter of the year, and the concentrations are almost unchanged. Consistent results have now been obtained for four consecutive quarters, and there is no longer any doubt that contamination is limited to the southwestern portion of the site and the area south and west of the site. Groundwater monitoring will continue through the end of 2001, and a Problem Assessment Report will be prepared. We anticipate that a Site Closure Report will be completed by year's end.