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\/ sftw� <br /> 22 February 2000 <br /> AGE-NC Project No. 98-0432 <br /> Page 3 of 6 <br /> 3.4. SCOPE OF WORK <br /> Based on the results of the UST removal soil sampling,the PHS-EHD has directed that a work plan <br /> to evaluate the vertical and lateral extent of petroleum hydrocarbon impact at the site be prepared. <br /> The investigation of the extent of petroleum hydrocarbons at the site will consist of the following <br /> tasks: <br /> • Permitting and pre-field work activities; <br /> • Soil sample collection and analysis; <br /> • Possible ground water sample collection and analysis; <br /> • Report preparation. <br /> Each of these tasks is described in more detail below. <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. Environmental Protection Agency, <br /> 1985). Prior to mobilization, each soil probe location will be clearly marked and a utility clearance <br /> obtained through Underground Service Alert. <br /> 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br /> Initially, AGE proposes to advance three soil probe borings on the site, in the vicinity of the former <br /> waste oil UST,to evaluate the lateral and vertical extent of petroleum hydrocarbon impact to soil and <br /> ground water. Proposed probe boring locations are illustrated in Figure 2. Additional soil probe <br /> borings will be advanced if required to determine the lateral extent of the petroleum impact to the <br /> site. <br /> One soil boring may be advanced to a depth of approximately 80 feet below surface grade. Two <br /> additional borings will be advanced to 30 feet bsg. A grab water sample will be collected at the top <br /> of the water table were indicated by field observations. <br /> Total depths of probe borings will be based on field observations and field screening using an <br />