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03 August 2001 AGE-NC Project No. 99-0641 Page 3 of 6 3.0. SCOPE OF WORK Based on observations made during the waste oil product line abandonment and the analytical results from the associated soil sampling, a ground water sample must be collected to determine if PCE- impacted ground water is present beneath the site. The assessment will require the following activities: • Permitting and pre-field work activities; • Soil sample collection and analysis; • Ground water sample collection and analysis and; • Report preparation. 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES Applicable site assessment permits will be obtained from the PHS-EHD, and a site-specific Health and Safety Plan will be prepared. Prior to mobilization, each soil probe anal/or soil boring location will be clearly marked and a utility clearance obtained through Underground Service Alert (USA). The PHS-EHD and USA will be contacted a minimum of 48 hours prior to conducting investigation activities. 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS Initially,AGE proposes to advance one soil probe boring in the vicinity of the former waste oil UST. The location of the proposed probe boring is illustrated in Figure 1. The soil probe boring is proposed to be advanced to a depth of approximately 30 feet bsg.However, total depth of the probe boring will be based on field observations and field screening using an organic vapor monitor (OVM). Soil samples will be collected from the probe boring at five-foot intervals from 5 feet bsg to the total depth of the boring. Field procedures for advancement of probe borings and collection of soil samples are presented in Sections 4.1 and 4.2, respectively. Up to two soil samples will be submitted for laboratory analysis. Selected soil samples will be analyzed by a California Department of Health Services(DHS)-certified laboratory for the following constituents: * Volatile organic compounds by EPA Method 8260B. Advanced GeoEnvironimental,Inc.