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Project No 034-97252 <br /> Page No 2 <br /> explored (40 feet) Based on regional groundwater depth information, groundwater would be expected <br /> at the site at a depth on the order of 40 feet <br /> GROUNDWATER SAMPLING <br /> On March 6, 1998, one exploratory boring (PS-V) was advanced to a depth of 50 feet using <br /> direct push (Geoprobe®) equipment One grab groundwater sample was collected and placed in a cooled <br /> ice chest for transport under chain-of-custody protocol to a State-certified laboratory in California On <br /> completion, the boring was backfilled with neat cement and the pavement surface was patched at the <br /> boring location <br /> ANALYTICAL TESTING <br /> The collected sample was transported under Cham-of-Custody protocol and submitted to a State- <br /> certified analytical laboratory to determine the presence and concentration of BTEX/TPH-G by EPA <br /> Methods 8015NV8020M and other volatile organics by EPA Method 8260 The analyte list for EPA <br /> Method 8260 includes the common fuel oxygenates (methyl-tertiary-butyl-ether [MTBE], etc) and <br /> common chlorinated compounds such as tetrachloroethene (PCE), trichloroethene (TCE), and 1,2- <br /> dichloroethene (1,2-DCE) <br /> The following table presents the results of the chemical analyses performed on the submitted <br /> groundwater sample Copies of the Certified Analytical Results and Cham-of-Custody Record are <br /> attached <br /> i <br /> KRAZAN &ASSOCIATES, INC <br /> Offices Serving the Western United States <br /> 3497252 GWl <br />