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KLE/NFELDER <br /> Bright People.Right Solutions. <br /> ti <br /> • TPH as referenced to Motor Oil (TPH-MO), <br /> • Benzene, Toluene, Ethyl benzene, and total Xylenes (BTEX), and <br /> • Fuel oxygenates: MtBE, TAME, ETBE, DIPE, TBA, methanol, and ethanol. <br /> Sample Location SS5 <br /> SS5 is inside of a wooden building. The building floor is elevated on piers above bare <br /> soil. Soil samples will be collected from 4 locations within the wooden building. <br /> Soil samples will be collected from three borings at depths of '/2, 5, and 10 feet below <br /> the ground surface. The fourth boring will be advanced to a total depth of 30 feet bgs <br /> while collecting soil samples at 5, 10, 15, 20, 25, and 30 feet bgs. Soil samples will not <br /> be collected below the depth at which groundwater is encountered. A single grab <br /> groundwater sample will be collected from the fourth boring. The borings will be <br /> advanced using a limited access Geoprobe drill rig. <br /> A total of 15 soil samples will be collected. However we anticipate only 12 will be <br /> submitted for analyses due to the anticipated shallow groundwater. The samples will be <br /> submitted under chain-of-custody control to a laboratory approved by the State of <br /> California Department of Health Services for the following requested analyses: <br /> • TPH-D, <br /> • TPH-MO, <br /> • BTEX, and <br /> • Fuel oxygenates: MtBE, TAME, ETBE, DIPE, TBA, methanol, and ethanol. <br /> 2.3 DATA ANALYSIS AND REPORT PREPARATION <br /> Kleinfelder will prepare a letter style report documenting the field activities. The data <br /> will be keyed to field locations and represented on a site map. The letter report will <br /> include: <br /> • A brief description of field activities, observations, and protocols; <br /> • Results of the soil and groundwater sample analysis with copies of certified <br /> analytical laboratory results and chain-of-custody documentation; <br /> • Description and documentation of QA/QC procedures employed for field and <br /> laboratory work; <br /> • A graphical representation of soil sampling locations; and <br /> • Kleinfelder's conclusions and recommendations based on the data acquired. <br /> 112884.1/ST010R347 Page 3 of 5 August 30, 2010 <br /> Copyright 2010 Kleinfelder <br />