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7.0 LABORATORY ANALYTICAL TESTING <br /> All soil samples obtained during the field exploration were delivered under Chain-of-Custody <br /> documentation to Del Mar Analytical Laboratory, located in Colton, California. The laboratory is <br /> certified by the State of California Department of Health Services, Environmental Laboratory <br /> Accreditation Program to perform the testing reported herein. <br /> Collected soil and groundwater samples were analyzed for volatile fuel hydrocarbons (VFHs) and <br /> extractable fuel hydrocarbons (EFHs) in accordance with EPA Test Method 8015 (modified for <br /> gasoline and diesel respectively), and by EPA Test Method 418.1 for total recoverable petroleum <br /> hydrocarbons (TRPHs). Samples were also analyzed for benzene, toluene, ethylbenzene and total <br /> xylenes (BTEX) and methyl tert-butyl ether (MTBE) by EPA Test Method 8020. The <br /> groundwater samples were evaluated for the presence of volatile organic compounds (VOCs) using <br /> EPA Test Method 8260. <br /> Selected soil samples were also analyzed for total recoverable oil and grease (TROG) in <br /> accordance with EPA Test Method 413.1. This method can help determine if naturally occurring <br /> organics in soils are a contributing factor to detected TRPH concentrations. <br /> JN 4007-088-01 <br /> Ihg\=w07-06jwi\arc tac.doc <br /> 7-1 <br />