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,0 November 2000 <br /> AGI.-NC Project No. 99-0645 <br /> Park 4 of 9 <br /> ['lie proposed initial scope of work will include the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Drilling, soil sample collection and <grah eater observations <br /> • Completion ofsoil borings into wells; <br /> • Sail sample analysis. <br /> • Development, sampling oi,monitoring wells, <br /> • Properly disposing of produced ground water; <br /> • Preparation of quarterly reports. <br /> 3.1 . Pl.•:RVII 1-TING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will he obtained from the PHS-EHD. In addition, an update to <br /> the health and safety plan presently on-file will he prepared in accordance with Occuj)atimiul.Sutetl, <br /> and Heulih Gui(kinc•e -Vulmal for- Hu_al-(Ioms lVeisle Site Aclivilies (National Institute for <br /> Occupational Safety and Health Administration. U.S. Coast Guard and U.S. Frivironmental <br /> Protection Auencv. 1985). Prior to mobiIIzation. the ground water extraction well location will he <br /> clearly marked and a utility clearance obtained through Undergrotund Service ,-alert. <br /> �.�. DRILL.ING, SOIL SAMPLING AND WELL COMPLETION <br /> AGE proposes to advance seven soil borings. collectrM soil and grab water samples and potentially <br /> complete three borings as ground water monitoring wells. The location of the proposed soil borinrTs <br /> are depicted in Figure ?. <br /> The proposed ground water w-cllswill he placed in the area of highest potential ground water MTBE <br /> contamination at the site. within the former IISTs (See Figure ?) and at locations appropriate for <br /> ground water flow direction monitoring and partial delineation of any dissolved Hydrocarbons. The <br /> .yells will he screened from 75 to 95 feet bsg. <br /> The soil borings will he advanced utilizing a truck-mounted, hollow-stem drill rig equipped with <br /> 8?5-inch hollmN-stem augers. Soil samples will be collected from within the 8,25-inch hollow-Stena <br /> augers at flee-foot intervals using a California split-spoon sampler and brass sleeves. The sampler <br /> \s ill he driven by dropping a 140-pound wei�,ght from a height of,(l inches. The number of blows <br /> required to drive each 6-inch length 01' the s:1111pler (counts) are to be recorded on boring logs <br /> compiled by an AGF' stalYgeolotoist. <br /> ldrunc•rd(;cul':rnirrrnrircntnl,lur. <br />