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n <br /> °' O <br /> ague <br /> 04 Tri-Valley Growers March 24, 1988 <br /> Project No. 1582G Page 4 <br /> Api r <br /> At the request of the SJLHD, a sample of ground-water was also taken at the <br /> water well located in the backyard of the private residence adjacent to the <br /> -- site. Permission to sample was obtained verbally from IAr. Michael Lopez, who <br /> t identified himself as the property owner. Mr. Lopez stated that the well is not <br /> used for household needs. The samplenthe red dipumly to p on laboratory- <br /> supplied containers from a faucet located <br /> Daf d neargas <br /> property. This sample was labeled, lagged on chain-of-custody form, and <br /> placed on ice for transportation to the state-certified laboratory. <br /> Two soil stockpiles remain on-site (see Figure 2). This material derived from <br /> the tank excavation has been aerating for a considerable tirr a. Prior to its <br /> replacement in the excavation pits, the soil was sampled to assure that the <br /> aeration process had been successful. Exceltech collected eight soil samples <br /> from the pile to the south and one sample from the northern pile. The sampling <br /> ` tubes were driven into the pile after the top G to 12 inches of soil had been <br /> removed. The liners were preserved and handled as previously described. The <br /> F. eight soil samples from the southern excavation soil pile were composited into <br /> one sample by the laboratory. <br /> :.. Imam <br /> For the presentation of the data and an accurate determination of the ground- <br /> water flow direction, the monitoring well was located both vertically and <br /> horizontally. The survey was conducted using modern surveying equipment and <br /> methods so that accuracy can be maintained. The results of the :purvey were <br /> added to the existing plot plan. The survey results for all monitoring wells are <br /> �- attached to this report. <br />