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25 April 2000 <br /> AGE-NC Project No. 95-0143 <br /> Page 2 of 4 <br /> 3.1. PRE-FIELD WORK ACTIVITIES <br /> A site-specific health and safety plan,prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety <br /> and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985), <br /> is currently on-file with the PHS-EHD.Prior to mobilization,the areas of excavation will be clearly <br /> marked and an utility clearance obtained through Underground Service Alert. <br /> 3.2. SOIL SAMPLE COLLECTION <br /> Two soil probe borings will be advanced using direct push technology. One soil borings will be <br /> advanced near the northeast comer of the site and one boring will be advanced in Fremont Street, <br /> as outlined by T&R. Proposed probe boring locations are illustrated in Figure 2. <br /> Soil samples will be collected at depths of 6, 10 and 15 feet below surface grade (bsg). Field <br /> procedures for advancement of borings and collection of soil samples are presented in Section 4.2. <br /> 3.3. GRAB WATER SAMPLE COLLECTION <br /> A grab water sample will be collected from boring 1613-6 at first encountered ground water. A grab <br /> water sample will be collected from a depth of approximately 50 feet below surface grade (bsg) in <br /> boring 1613-7,below a confining layer. Samples will be collected using a Geoprobe water sampling <br /> assembly and will be placed into 40-m1 volatile organic analysis (VOA)vials, 1-liter amber bottles <br /> and plastic bottles as appropriate for the required analyses. Ground water sample collection <br /> procedures are presented in Section 4.3. <br /> 3.4. LABORATORY ANALYSES <br /> Each of the soil samples and the grab water sample collected will be submitted for laboratory <br /> analysis. The samples will be analyzed by Curtis&Tompkins,Ltd., a State of California Department <br /> of Health Services (DHS)-certified laboratory for the following constituents: <br /> • Total petroleum hydrocarbons quantified as gasoline, diesel and motor oil (TPH-g, TPH-d <br /> and TPH-mo)by EPA Method 8015 Modified; <br /> • Volatile aromatic compounds (benzene,toluene, ethylbenzene and total xylenes: BTEX), by <br /> EPA Method 8020; and <br /> Advanced GcoEnviron rental,Inc. <br />