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f i <br /> %W01 %NOV <br /> 14 November 1995 <br /> AGE-NC Project No. 95-0185 <br /> Page 2 of 5 <br /> Ground water flow direction near the site varies seasonally. However, the overall regional flow <br /> direction is northeast. <br /> 3.0. SCOPE OF WORK <br /> 3.1. DRILLING AND SAMPLING <br /> A subsurface investigation of the site is necessary to determine the lateral and vertical extent of <br /> hydrocarbon-impacted soil and/or ground water. AGE proposes to advance four probings at the site <br /> to determine the extent of impacted soil. Probings wiII be advanced to depths of approximately 20 <br /> feet (ground water), using"direct push" technology. <br /> Probings will be advanced within and around the former UST excavation. Grab ground water <br /> samples will be collected from two of the probings-using a Geoprobe water sampler. Proposed <br /> probing locations are illustrated in Figure 2. <br /> Soil samples will be collected at five-foot intervals in each probing, beginning at a depth of 10 feet. <br /> If impacted soil and/or ground water is present at the site, additional probings may be advanced at <br /> the site. <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 soil and ground water samples will be analyzed for total petroleum hydrocarbons quantified <br /> as diesel (TPH-d) and volatile aromatics (benzene, toluene, ethylbenzene, and xylenes: BTE&X) in <br /> accordance with EPA methods 8015/5030 and 8020/602, respectively. Laboratory reports of both <br /> soil and ground water analyses, testing methods, laboratory quality assurance/quality control <br /> (QA/QQ reports, and sample chain of custody documentation will be presented in a report with the <br /> findings and recommendations. <br /> 4.0. PROCEDURES <br />