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07 June 1999 AGE-NC Project No. 99-0616 Page 2 of 4 3.0. SCOPE OF WORK Prior to a property transfer, the Moreno Trust will perform a preliminary site investigation to determine if hydrocarbon impact is present as the result of the operation of a UST formerly on the property. The scope of work will initially include the advancement of one soil probe boring to a depth of 30 feet below surface grade (bsg) Arithing the former UST excavation. However, if field observations indicate that hydrocarbons are present at the site,the probe boring may be advanced to greater depth or additional probe borings may be advanced. Soil samples will be collected from each probe boring. We do not anticipate encountering ground water at the site; therefore,no ground water samples will be collected. Assessment activities will include the following tasks: • Permitting and pre-field work activities; • Soil sample collection and analysis; • Report preparation. 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES Applicable site assessment permits will be obtained from the PHS-EHD. As required by PHS-EHD permitting, a health and safety plan will be prepared in accordance with Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). Prior to mobilization, each soil probe location will be clearly marked and a utility clearance obtained through Underground Service Alert. 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS Initially, AGE proposes to advance one soil probe boring in the vicinity of the former UST to evaluate the vertical extent of petroleum hydrocarbon impaction.The proposed probe boring location is illustrated in Figure 2. Total depth of the probe boring will be based on field observations and field screening using an organic vapor meter(OVM)equipped with a photo-ionization detector(PID: Thermo Environmental 580A, 10.0 eV, calibrated to isobutylene). Soil samples will be collected from the probe boring at five-foot intervals from ground surface to Advanced GeoEnvironmental,Inc.