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06 February 2003 <br /> AGE--NC Project No. 98-0504 <br /> Page 4 of 9 <br /> 3.0. SCOPE OF WORK <br /> The scope of the work includes the advancement of three pilot soil borings for the installation of <br /> ground water monitoring wells, collection of soil samples'and quarterly ground water monitoring. <br /> The scope of work will consist of the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Drilling and soil sample collection; <br /> • Monitoring well installation and development; <br /> • Ground water sampling and analysis; and <br /> • Preparation of monthly reports. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the PHS-EHD. In addition, an update to <br /> the health and safety plan presently on-file will be prepared in accordance with Occupational Safety <br /> and Health Guidance Manual for Hazardous 6Yaste ,Site Activities (National Institute for <br /> Occupational Safety and Health Administration, U.S. Coast Guard and U.S. Environmental <br /> Protection Agency, 1985). Prior to mobilization, the proposed well locations will be clearly marked <br /> and a utility clearance obtained t4rough Underground Service Alert. <br /> 3.2. DRILLING AND SOIL SAMPLE COLLECTION <br /> AGE proposes to advance three pilot soil borings at the site for installation of ground water <br /> monitoring wells,using a truck-mounted,hollow-stem drill rig equipped with 8.25-inch hollow-stem <br /> augers to advance the well borings to approximately 45 feet bsg; the total depth of each well boring <br /> may vary according to hydrogeologic/geologic conditions encountered during drilling. One of the <br /> borings will be advanced at the eastern edge of the property down-gradient of the known <br /> hydrocarbon release, one at the southwestern portion of the site adjacent to the southeast edge of the <br /> former UST area and one north of the former UST in the area of the highest petroleum hydrocarbons <br /> concentration (Figure 2). <br /> Soil samples will be collected from within the 8.25-inch hollow-stem augers at five-foot; intervals <br /> using a California split-spoon sampler and brass sleeves. Selected soil samples will be analyzed by <br /> a State of California Department of Health Services (DHS)-certified laboratory for the following <br /> constituents: <br /> Advanced Geo Enviro"mental,[ne. <br />