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The groundwater table has been above the top of all well screens since the August 1996 monitoring event The average depth to groundwater in the monitor wells was approximately 26 61 feet below the surveyed well collar measuring points on April 4, 2003, approximately 0 25 feet less (greater in elevation) as the previous quarter The groundwater elevation contours indicated that the groundwater gradient was generally toward the northeast, consistent with historical groundwater gradients Quarterly groundwater monitoring activities were conducted on July 10, 2003 The laboratory analytical results for the groundwater samples collected from MW-1, MW-3, MW-4, MW-6, and MW-7 indicated that BTEX constituents were not detected at or above laboratory reported detection limits in those samples BTEX constituents were detected at a moderate concentration in the sample collected from MW- 2, and at relatively elevated concentrations 1n the sample from MW-5 TPH-G was detected 1n MW-2, MW-3, and MW-5, at concentrations of 6 2, 0 063, and 49 mg/L respectively Laboratory analytical results indicated that MTBE was detected at a concentration of 400 gg/L in MW-2 and that MTBE was not detected at or above an elevated detection limit of 500 }ig/L in the groundwater sample collected from MW-5 Because the result for the MW-2 sample was inconsistent with historical results and the detection limit for the MW-5 sample was elevated, the samples were re-analyzed for MTBE by EPA Method 8260B The results of the EPA Method 8260B analyses indicated that MTBE was not detected in the samples from MW-2 and MW-5 at or above the laboratory reported detection limit of 5 0 gg/L The laboratory analytical results of the groundwater samples collected on July 10, 2003, were generally consistent with historical monitoring results The groundwater table remained above the top of all well screens during the July 2003 monitoring event The average depth to groundwater 1n the monitor wells was approximately 26 98 feet below the surveyed well collar measuring points on July 10, 2003, 0 37 feet deeper than the previous quarter The groundwater elevation contours indicated that the groundwater gradient was generally toward the northeast, consistent with historical groundwater gradients P 12000_prj12038 Canepa Park12038 Canepa Park\Quarterly Monitoring Reports12003 November\Site Background 11-2003 doc