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09 February 2004 <br /> AGE-NC Project No. 98-0452 <br /> Page 3 of 8 <br /> • Permitting and pre-field work activities; <br /> • Drilling and soil sample collection; <br /> • Monitoring well installation and development; <br /> • Ground water sampling and analysis; <br /> • Completion of a sensitive receptor survey; and <br /> • Report preparation. <br /> Each of these tasks is described in greater detail below. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the EHD. In addition, an update to the <br /> health and safetyplan presently on-file will be prepared in accordance with Occupational Safety and <br /> Health Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational <br /> Safety and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, <br /> 1985). Prior to mobilization, the proposed well locations will be clearly marked and a utility <br /> clearance obtained through Underground Service Alert, <br /> 3.2. DRILLING AND SOIL SAMPLE COLLECTION <br /> AGE proposes to advance three pilot soil borings at the site for installation of ground water <br /> monitoring wells,using a truck-mounted,hollow-stern drill rig equipped with 8.25-inch hollow-stem <br /> augers to advance the well borings to approximately 25 feet bsg;the total depth of each well boring <br /> may vary according to hydro geologic/geo logic conditions encountered during drilling. Relative to <br /> existing well MW-2, the first boring will be advanced approximately sixty feet north, the second <br /> boring will be approximately sixty feet west and the third will be approximately eighty feet south, <br /> (Figure 2). <br /> Soil samples will be collected from within the 8.25-inch hollow-stem augers at five-foot intervals <br /> using a California split-spoon sampler and brass sleeves. Selected soil samples will be analyzed by <br /> a State of California DHS-certified laboratory for the following constituents: <br /> • Total petroleum hydrocarbons quantified as gasoline and diesel (TPH-g and TPH-d) in <br /> accordance with EPA Method 8015M; and <br /> • Benzene, toluene, ethyl benzene and total xylenes (BTEX) and fuel additives, including di- <br /> isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), methyl tertiary-butyl ether <br /> (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA), methanol, ethanol, <br /> Advanced CeoFnvironmental.Inc. <br />