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k <br /> . 03 July 1997 <br /> AGE-NC Project No 97-0343 <br /> Page 3 of 5 <br /> soil probe boring will be advanced within the former UST excavation If necessary, additional soil <br /> probe borings will be advanced to adequately characterize the lateral and vertical extent of <br /> hydrocarbon-impacted soil <br /> Based upon the estimated depth to ground water at the site,we do not anticipate encountering ground <br /> water during this investigation However, if encountered, at least one ground water sample will be <br /> collected and analyzed <br /> 3 1 PROBING AND SAMPLING <br /> Soil probe borings will be advanced using a Geoprobe 5400 soil probing unit equipped with 1 125- <br /> inch diameter probe rods and an attached 2 15-inch diameter soil sampler Probe borings will be <br /> advanced near the former UST area Proposed soil probe boring location is illustrated on Figuie 2 <br /> Discrete soil samples will be collected at five-foot intervals beginning at a 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 from to a depth of 30 feet bsg If petroleum hydrocarbon- <br /> impacted soil is encountered during probing activities, probe borings mdy be advanced to greater <br /> depths in an attempt to determine the extent impacted soil <br /> If encountered, grab ground water samples will be collected from selected probe borings Giab <br /> ground water samples will be collected from selected soil probe borings using a Geoprobe water <br /> sampling assembly For the sampling assembly,probe rods will be fitted with a ietiactable ground <br /> water screen and advanced to the total depth of each probe boring, the rods will then be pulled <br /> upwaid to allow ground water to flow into the screen <br /> A bailer fitting will then be placed on the end of 3/a-inch diameter polyethylene tubing, inserted <br /> through the rod assembly into the exposed screen, through which water will be manually pumped <br /> 32 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 /> Ad►anced CeoEnvironrnental,Inc <br />