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0 <br /> 06 December 2004 <br /> AGE-NC Project No.04-1238 <br /> Page 4 of 6 <br /> 3.2. SOIL AND GRAB GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> AGE proposes to advance up to four soil probe borings,using direct push technology,in the area of <br /> the former USTs and piping and fuel dispenser locations to assess petroleum hydrocarbon-impacted <br /> soil and ground water beneath the site. The four borings will be advanced to ground water or <br /> saturated soil is encountered(approximately 15 to 20 feet bsg).Proposed probe boring locations and <br /> depths may be modified due to field observations.As each boring is advanced, soil samples will be <br /> collected at 5-foot intervals beginning at five feet bsg and extending to the total depth of the probe <br /> boring. <br /> The proposed probe boring locations are illustrated on Figure 2. Field procedures for advancement <br /> ofprobe borings and collection of soil and grab ground water samples are presented in Sections 4.1., <br /> 4.2., and 4.3.. <br /> Selected soil and grab ground water samples from each probe boring will be submitted for laboratory <br /> analysis. The selected soil samples will be analyzed by a State of California Department of Health <br /> Services (DHS)-certified laboratory for one or more the following constituents: <br /> • TPH-g and TPH-d in accordance with EPA Method 8015M; <br /> • BTEX by EPA Method 826013; and <br /> • The oxygenated fuel additives MTBE, tertiary butyl alcohol (TBA), di-isopropyl ether <br /> (RIPE), ethyl tertiary butyl ether (ETBE), tertiary amyl methyl ether (TAME), 1,2- <br /> dichloroethane (1,2-DCA) and 1,2-dibromoethane(EDB)by EPA Method 8260B. <br /> Laboratory reports for soil and grab ground water analysis, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be <br /> presented in a report with findings and recommendations. <br /> 3.3. 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. <br /> Advanced GeoEnvironmental,Inc. <br />