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05 April 1999 <br /> AGE-NC Project No. 98-0511 <br /> Page 2 of 5 <br /> 3.0. SCOPE OF WORK <br /> The scope of work will include the advancement of four soil probe borings to depths between 20 and <br /> 50 feet bsg. If there is significant field evidence that the soil samples collected adjacent to EW-1 are <br /> impacted below 25 feet bsg. an additional soil probe boring, number five, will be advanced <br /> northwest of the proposed boring adjacent to EW-1. Soil and ground water samples will be collected <br /> from each probe boring. Assessment activities will included the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Soil sample collection and analysis; <br /> • Ground water sample collection and analysis; <br /> • Calculation of the remaining hydrocarbons in soil (mass balance) and determination of the <br /> transport fate of the ground water plume; and <br /> • Report preparation. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the PHS-EHD. As required by PHS-EHD <br /> permitting, a health and safety plan 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. Environrmental Protection Agency, <br /> 1985). Prior to mobilization, each soil probe location will be clearly marked and an utility clearance <br /> obtained through Underground Service Alert. <br /> 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br /> Initially,AGE proposes to advance three or four soil probe borings in the vicinity of the former UST <br /> to evaluate the lateral and vertical extent of petroleum hydrocarbon impaction. Proposed probe <br /> boring locations are illustrated in Figure 2. <br /> Three soil probe borings are proposed to be advanced southwest, south, and southeast of EW-1 to <br /> depths of 20 feet bsg. One soil probe boring will be advanced adjacent to EW-1 to an estimated <br /> depth of 50 feet bsg to determine the vertical extent of impacted soil. Total depths of probe borings <br /> will be based on field observations and field screening using an organic vapor monitor (OVM). <br /> Advanced GcoEnvironnicntal,Inc. <br />