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INTERNATIONAL TECHNOLOGY CORPO:ZATiON <br /> well. Water samples were placed directly from the bailer into laboratory supplied sample <br /> containers. No headspace was left in the samples to be analyzed for volatile organic <br /> constituents. A field blank sample consisting of distilled water was collected for quality <br /> assurance purposes. Each container was placed in a "zip-lock" bag, security taped, and placed <br /> in a refrigerated ice chest until delivery to the certified, contracted laboratory. Chain-of- <br /> custody forms accompanied the samples at all times. <br /> 4.0 Laboratory Analyses <br /> The water samples were analyzed by Precision Analytical Laboratory, Inc. for Total <br /> Petroleum Hydrocarbons (TPH) as Gasoline and Benzene, Toluene, Ethylbenzene, and total <br /> Xylenes (BTEX) by EPA methods modified 5030 and 602, respectively. <br /> 5.0 Site Hydrogeology <br /> Groundwater was encountered from 29.53 feet to 30.47 feet below the well heads, with the <br /> water table being situated at approximately 24 feet below mean sea level. No free product <br /> was encountered in any of the wells. The site specific potentiometric contours are depicted <br /> on Figure 3, with a groundwater gradient of 0.004 ft/ft to the north northwest. All water level <br /> data is contained in Table 1. <br /> 6.0 Results <br /> 1� <br /> The results of the analyses are summarized in Table 2, with copies of the Analysis Request <br /> and Chain-of-Custody Record Form and laboratory reports following this report in <br /> Appendices A and B, respectively. <br /> MZ/03-17-92NST/0097MER 2 <br />