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24 July 1997 <br /> AGE-NC Project No. 97-0349 <br /> Page 3 of 4 <br /> 3.1. PROBING AND SAMPLING <br /> Soil probe borings will be advanced using a Geoprobe 5400 soil probing unit equipped with l.125- . <br /> inch diameter probe rods and an attached 2.15-inch diameter soil sampler. The initial probe boring <br /> will be advanced within the former UST area. The proposed soil probe boring location is illustrated <br /> on Figure 2. <br /> Discrete soil samples will be collected at five-foot intervals beginning ata depth of 5-feet bsg using <br /> a Geoprobe soil sampling assembly loaded with four pre-cleaned 1.125-inch by 6-inch brass sleeves. <br /> Soil samples will be preserved by covering both ends of the second brass sleeve with Teflon sheets, <br /> capping and sealing with tape. Each sample sleeve will be labeled with the following information: <br /> soil probe boring location, depth, time, date and sampler's initials. <br /> Initially, soil samples will be collected to a depth of 50 feet bsg. If petroleum hydrocarbon-impacted <br /> soil is encountered during probing activities, probe borings may be advanced to greater depths in an <br /> attempt to determine the vertical extent impacted soil. <br /> 3.2. EQUIPMENT DECONTAMINATION <br /> All probing rods, sampling tools and sample liners used for sample collection will be thoroughly <br /> rinsed with clean water after washing with a solution of Alconox. <br /> 3.3. LABORATORY ANALYSIS <br /> Selected soil samples will be analyzed for TPH-g, BTE&X and methyl tert-butyl ether(MTBE) in <br /> accordance with EPA methods.801-5m and 8020%602 and 8260B, respectively. Laboratory reports <br /> and sample chain-cif-custody documentation will be presented in a report with the findings and <br /> recommendations. Soil samples will be selected for analysis based upon field observations. <br /> 4.0. PROCEDURES <br /> 4.1. ADVANCEMENT OF SOIL PROBE BORINGS <br /> The following procedures will be performed for the installation of probing(s): <br /> 1. Notify the PHS-EHD at least 48 hours prior to commencement of any work. <br /> Advanced GeoEnviroNnental,Inc. <br />