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30 August 2007 <br /> AGE-NC Project No. 07-1517 <br /> Page 5 of 7 <br /> Each of these tasks is described in greater detail below. <br /> 3.1. PRE-FIELD WORK ACTIVITIES <br /> A health and safety plan will be prepared in accordance with Occupational Safety and Health <br /> Guidance Manual for Hazardous Waste Site Activities(National Institute for Occupational Safety <br /> and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, 1985). <br /> Prior to excavations and drilling, the areas of excavation/drilling will be clearly marked and an <br /> utility clearance obtained through Underground Service Alert. <br /> 3.2. SOIL EXCAVATION AND WASTE HANDLING <br /> The phase of the scope of work includes the excavation of hydrocarbon/lead-impacted soil from the <br /> area east of the building on site. The shallow soil areas which will be remediated are depicted on <br /> Figure 3. <br /> Based upon laboratory results of soil samples collected during the preliminary soil assessment <br /> removal procedures/sampling, an estimated maximum of 120 yards of impacted soil will also be <br /> removed from the site and transported for disposal. Soil will be excavated to a maximum depth of <br /> two feet below bsg. <br /> Soil will be excavated/exposed from locations corresponding to soil samples AA,BB and CC for <br /> characterization as hazardous waste(requiring disposal at a Class I Landfill),and will be segregated <br /> for sampling.The remaining soil will be excavated/exposed and stockpiled for disposal. <br /> During excavation activities, excavated soil will be screened for volatile organic compounds(VOCs) <br /> using an organic vapor monitor(OVM)equipped with a photo ionization detector(PID).Excavated <br /> soil that appears visibly stained, has measurable VOCs or has a petroleum hydrocarbon odor will <br /> be considered impacted. Soil will be excavated using a backhoe or small front loader(bobcat). Soil <br /> will be temporarily stored on plastic for loading and disposal. Based on OVM readings and field <br /> observations,excavated soil will be segregated into clean soil (if appropriate) and impacted soil. Soil <br /> will be stored on 6 millimeter plastic and covered with plastic on-site pending appropriate removal <br /> and disposal. <br /> The vertical limit of the excavation will be a maximum of 2 feet bsg.While the lateral limits of the <br /> excavation will be determined by the excavation proceedings.The maximum dimensions of either <br /> excavation will not exceed 25 feet in either direction,unless the vertical extent of the contamination <br /> has been determined and the lateral extent is more extensive then vertical extent.The limits of the <br /> excavation will be governed by the property line (east) and buildings (west). <br /> Advanced GeoEnvironmental.Inc. <br />