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13 November 2000 <br /> AGE-NC Project No. 98-0504 <br /> Page 4 of 9 <br /> Assessment will consist of the following tasks: <br /> • Permitting and pre-field work activities, <br /> • Drilling and well installation.- <br /> • Well development, Quarterly sampling of ground water-, <br /> • Properly disposing of produced soil and ground water; <br /> ■ Preparation of monthly reports. <br /> 3.I PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> :Applicable site assessment permits will be obtained from the PHS-EHD. In addition,, an update to the <br /> health and safety plan presently on-tile will be prepared in accordance with Occcrpanor?al Safety and <br /> Health Guiclunce.Wanual for Hazarzlous Wtv;te ,Site Activities (National Institute for Occupational <br /> Safetv and Health Administration, U.S Coast Guard and U.S. Environmental Protection Agency, <br /> 1985). City of Stockton encroachment permit will be obtained. Prior to mobilization, the round <br /> water extraction well location will be clearly marked and a utility clearance obtained through <br /> Underground Service ert. <br /> 3.2 DRILLING, SOIL SAMPLING AND Wl LL COMPLETION <br /> :AGE proposes to install six ground water monitoring wells as depicted in Figure 2 for the assessment <br /> and monitoring of know dissolved hvdrocarbons and well should be completed as a one six-inch <br /> diameter Lyround water well to evaluated interim remediation activities of the -round at the site, <br /> e proposed ground water extraction well will be placed in the area of highest known ground water <br /> MTBE contamination at the site, at the northern edge of the former USTs (See Figure 2). The wells <br /> will be screened from 25 to 45 feet bs�,,. <br /> Following installation, the extraction well will be developed to maximize water flow into the well and <br /> minimize the amount of fine-grained sediment drawn into the well during pumping or bailing. <br /> .Procedures for well installation and development are presented in Sections 4.2 and 4.3, respectively. <br /> The soil borings to be completed as round water monitoring wells will be advanced Utilizing a truck- <br /> mounted, hollow-stem drill rig equipped with 8.25-inch hollow-stem augers. The soil boring on the <br /> site to be completed as the ground water extraction well will be advanced with 15-inch hollow-stem <br /> augers <br /> advae=cedGeol?mTiroiuucntal,111L-, <br />