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1.2 Laboratory Testing <br /> Soil Samples <br /> Hand Auger Samples <br /> Two hand-auger soil samples will be taken at impacted area #1 at a depth of 2 feet begs. HA-1 <br /> will be at the northern boundary of the area, approximately 1 feet south of the asphalt crossing, <br /> centered in the railroad tracks. HA-2 will be taken approximately 15 feet south of the asphalt <br /> crossing. The samples will be collected in stainless steel sleeves using a slide hammer. Teflon <br /> film will be placed at each sleeve end followed by plastic caps. The samples will be analyzed for <br /> TPH diesel and hydraulic oil. <br /> Excavation Areas <br /> Twenty samples will be taken from the two excavations and analyzed for total petroleum <br /> hydrocarbons by EPA Method 8015 modified for diesel range (C12-C22) and hydraulic oil range <br /> (C22-C32). The sampling locations are described below. <br /> Excavation 41 <br /> A total of ten samples will be taken from the excavation. Seven sidewall samples will be taken <br /> at 2 feet b9 s: three along the western sidewall taken at the northern boundary, mid-section (25 <br /> feet southward), and at the southern boundary; four samples along the eastern boundary taken at <br /> the northern boundary, center of the small section extending eastward, mid-section (25 feet <br /> southward), and at the southern boundary. Three samples will be taken from the center of the <br /> excavation at four feet bgs at the northern boundary, mid-section, and southern boundary. <br /> Rough& Ready Island 2 Tetra Tech, Inc. <br /> Revised Draft SAP November 18, 1998 <br />