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3 <br /> ends are covered with Teflon and sealed with fight-fitting caps Each retained <br /> sample is identified as to location, depth and time collected <br /> ion of soil samples for laboratory analysis is based upon 1) the project <br /> The select p rY Y <br /> objectives (define contamination zone) , 2) qualitative field screening performed in <br /> the field using the organic vapor detector and 3) field observations such as <br /> lithology, odor, discoloration, or high moisture content <br /> ' DPT boring holes will be kept open for 24 to 48 hours with 3/41 inch pvc pipe to <br /> allow stabilization of ground water levels in the holes Depth to water will be <br /> measured for all holes within several hours, holes will then be closed by grouting <br /> the boring with cementlbentonite slurry <br /> The soil samples will be submitted under chain of custody procedures to and <br /> anayzed by a California DOH certified laboratory The laboratory of choice is <br /> Sequoia Analytical in Sacramento Samples will be submitted on a "normal" 10-15 <br /> ' working day turnaround basis, utilized the attached chain of custody form <br /> The soil samples will be analyzed using the following methods <br /> ' TPH-Extractable as Diesel (by EPA Method 8015M) <br /> TPH-Extractable as Kerosene(by EPA Method 8015M) <br /> TPH-Purgeable as Gasolene (by EPA Method 8015M) <br /> Benzene, Toulene, Ethylbenzene and Total Xylenes(BTEX) (by EPA Method 8020) <br /> ' B - 3 <br />