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27 February 2007 <br /> AGE-NC Project No. 07-1514 <br /> Page 4 of 6 <br /> 1910.120) and state (Title 8. Cal. Code Reg., Section 5192) regulations. <br /> Prior to mobilization, each soil boring location will be clearly marked and a utility clearance <br /> obtained through Underground Service Alert. An EHD soil boring permit will be obtained and on- <br /> site during boring activities. <br /> 3.2. SOIL-VAPOR COLLECTION AND ANALYSIS <br /> AGE proposes to advance soil borings using direct-push technology;three borings will be advanced <br /> on the site as described below: <br /> • SV-1 is proposed to be advanced adjacent to the former UST area and boring B4 and <br /> northeast of the current UST area; <br /> • SV-2 is proposed to be advanced adjacent to west-northwest of the repair shop/main packing <br /> shed, in the vicinity of soil boring B- ; and <br /> w <br /> • SV-3 is proposed to be advanced adjacent to repair shop and north of the packing shed. <br /> The proposed locations of the soil-vapor samples were determined based upon their proximity to the <br /> current UST area and the occupancy of the various buildings as depicted on Figure 2. <br /> Each boring will be advanced to a depth of five feet bsg (1.5 meters) near building structures and <br /> soil-vapor samples collected from depths of 5 bsg each soil boring location. <br /> Field procedures for advancement of borings and collection of soil-vapor samples are presented in <br /> Sections 4.1 and 4.2. <br /> Each soil-vapor sample will be submitted for laboratory analysis an _analyzed by a State of <br /> California Department of Health Services (DHS)-certified laboratory or one or more the following <br /> constituents: �-- <br /> �. r <br /> • Volatile organic compounds (VOCs) to include BTEX and naphthalene in accordance with <br /> EPA Method 8260B; and <br /> • Fuel additives di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), methyl tertiary <br /> butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol ( BA), <br /> 1,2-dichloroethane (1,2-DCA) and ethylene dibromide (EDB) in accordance with EPA <br /> Method 8260B. <br /> Advanced GcoEnvironmental,Inc. <br />