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15 February 2005 <br /> AGE-NC Project No. 02-0950 <br /> Page 5 of 7 <br /> by a DHS-certified laboratory for the following constituents: <br /> • TPH-g and TPH-d in accordance with EPA Method 8015 Modified; and <br /> • BTEX and the fuel additives DIPE, ETBE, MTBE, TAME, TBA, 1,2-DCA, EDB in <br /> accordance with EPA Method 8260B. <br /> Laboratory reports for the soil analyses, testing methods,laboratory QA/QC reports, and sample <br /> chain of custody documentation will be presented in a report with findings and recommendations. <br /> 3.4. REPORT PREPARATION <br /> Upon completion of field work and receipt of final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation. The report will include a description of the work <br /> performed and results of the sampling and analysis. Conclusions,applicable recommendations,and <br /> maps will be included in the report. The report will be reviewed and signed by a California <br /> Registered Geologist. <br /> 4.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist.Procedures for the advancement of the CPT and monitoring well pilot borings, <br /> soil sampling,monitoring well completion,ground water sampling,equipment decontamination and <br /> sample shipment are outlined below. <br /> 4.1. CPT ADVANCEMENT . <br /> The CPT soil boring will be advanced to a depth of approximately 100 feet bsg utilizing a 25-ton <br /> truck-mounted CPT drill rig equipped'with 2-inch diameter hollow-stem rods.At the CPT location, <br /> the first soil boring will utilize a hydraulic ram to advance a piezocone to the desired depth. Soil <br /> parameters such as cone bearing, sleeve friction, friction ratio and pore water pressure will be <br /> measured as the piezocone is advanced. The data will be utilized to obtain a computer-generated <br /> interpretation of the penetrated soil lithology. Rinseate generated during drilling activities will be <br /> containerized in properly labeled Department of Transportation(DOT)-approved 55-gallon drums, <br /> and stored on-site in an area lacking public access. Disposal alternatives will be evaluated at a later <br /> date based on laboratory results of rinseate. <br /> Advanced GeoEnvironmental,Inc. <br />