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' 09 April 2002 <br /> • AGE-NC Project No 95-0141 <br />' Page 5of13 <br /> • TPH-g in accordance with EPA Method 8015 Modified/5030, <br /> • BTEX and fuel oxygenated compounds Including methyl tertiary butyl ether (MTBE), <br /> I tertiary butanol(TBA), tertiary-amyl methyl ether (TAME), di-isopropyl ether(DIPE), and <br /> ethyl tertiary-butyl ether (ETBE) by EPA Method 8260B, and <br /> • Ethanol, methanol, EDB and 1,2-DCA by EPA Method 8260B <br /> Laboratory reports for ground water analysis,testing methods, laboratory quality assurance/quality <br /> control(QA/QC) reports, and sample chain of custody documentation will be presented in a report <br /> with findings and recommendations <br /> 3 3 MONITORING WELL ABANDONMENT <br /> Wells MW-1, MW-2 and MW-4 will be filled with grout, pressure (15-20 psi) will be applied to <br /> each well for approximately three minutes to ensure gout penetration into the filter pack Each well <br /> cover box will be removed and the well will be subsequently over-drilled to a depth of approximately <br /> 3 feet bsg utilizing a truck-mounted drill rig equipped with 12-inch diameter hollow stem augers <br /> The top three feet will be backfilled with neat cement The gout n-nxture will consist of Type I/II <br /> portland neat cement and not more than 6 gallons of water per 94-pound sack of cement <br /> 3 4 WELL DRILLING AND SOIL SAMPLE COLLECTION <br /> Four "clustered" wells and one deep ground water monitoring well will be installed at the site to <br /> assess and monitor shallow and deep petroleum hydrocarbon-impacted groundwater Well locations <br /> are proposed to provide definition of the lateral and vertical extent of dissolved hydrocarbons <br /> Proposed well locations are illustrated on Figure 2 <br /> 3 4 1 Ground Water Monitoring Wells <br /> IBased on the current known distribution of hydrocarbon-impacted groundwater,AGE proposes the <br /> installation of ground water monitoring wells in the following locations <br /> • One "clustered" well approximately 80 feet southwest of monitoring well MW-6, <br /> • One "cluster" well approximately 75 feet morthwest of monitoring well MW-6, <br /> i <br /> IAdvanced GeoEnvironmentel,Inc <br />