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08 September 1997 <br /> AGE-NC Project No. 95-0137 <br /> Page 3 of 6 <br /> staff geologist. Upon sample retrieval, the middle brass sleeve will be removed from the sampler. <br /> The ends of the sleeve will be immediately covered with Teflon or aluminum sheets, sealed with <br /> plastic end caps, secured with tape and immediately placed in a chilled container for transportation <br /> to a State-certified laboratory. Each sample sleeve will be labeled with the following: boring <br /> Iocation, depth, time, date and sampler's initials. <br /> 3.2. EQUIPMENT DECONTAMINATION <br /> All sampling tools and brass sleeves used for sample collection will be thoroughly rinsed with clean <br /> water after washing with a solution of Alconox. All hollow stem augers are steam-cleaned prior to <br /> advancement in each borehole. <br /> 3.3. LABORATORY ANALYSIS <br /> Selected vapor, soil and water samples Nvill be analyzed for total petroleum hydrocarbons quantified <br /> as gasoline and diesel (TPH-g, TPH-d), volatile aromatics (benzene, toluene, ethylbenzene and <br /> xylenes: BTE&X) and volatile organic compounds (VOCs, including methyl tertiary butyl ether <br /> [MTBE]) for identification of oxygenated fuel additives. Samples will be analyzed in accordance <br /> with the EPA methods 8015m, 8020 and 8240b. A ground water sample will be analyzed for total <br /> iron; total dissolved iron and total dissolved manganese in accordance with EPA. method 6010. <br /> Laboratory reports, laboratory quality assurance/quality control (QA/QC) reports and sample chain <br /> of custody documentation will be presented in a report with the findings and recommendations. <br /> 3.4. SOIL VAPOR EXTRACTION/I1V--SITU AIR SPARGING PILOT TEST <br /> AGE will perform an SVE/IAS pilot test to evaluate remediation alternatives for the site. The SVE <br /> pilot test will be conducted for an eight-hour period; the IAS pilot test will have a duration of <br /> approximately 96-hours (4 days). <br /> For the SVE test, an internal-combustion unit will be used to apply a vacuum to one extraction well. <br /> The induced vacuum will be measured at a second SVE well and several monitoring wells <br /> throughout the site. Additionally, the vapor concentrations from the extraction well, ground water <br /> depths and others SVE unit parameters (operation speed, air flow and vacuum) will be measured <br /> during the SVE pilot test. Four soil vapor samples will also be collected during the pilot test and <br /> submitted to a laboratory for the appropriate analysis. <br /> Advanced GeoEnvironmental,Inc. <br />