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`.F : 'ks x 'fir r!{ <br /> P � rtf + x <br /> . r T <br /> i <br /> WEISS ASSOCIATES <br /> Julian Munnz 2 <br /> 10 ,lune 1987 <br /> soil snQple Per boring by gas <br /> o Analyzing one <br /> o� saturated total fuel <br /> chromatography/flame ionization detection (CC C/'ID) for <br /> hydrocarbons (MAG) and benzene, toluene and xylenes {BTX}; and <br /> ribution of hydrocarbons in the subsurface. <br /> o Determining the dist <br /> SOIL BORINGS <br /> eph P. Theisen, WA geologist' <br /> Borings B-1 through B-9 were drilladhollow5stem auger drilling rig operated <br /> and B April 1987, using were <br /> on 7 April California. Nine borings <br /> Exploration Geoservices, of San Jose, collected from <br /> by Exp because a soil sample could not be <br /> drilled instead of eight <br /> location of buried <br /> Estimated ground water flow direction, <br /> uti <br /> lit es, and site access were considered in determining the boring locations <br /> boring B-5. <br /> Figure <br /> 1. <br /> shown in Fi g <br /> SOIL SAMPLING <br /> proximately every 5 ft to describe <br /> Soil samples were collectedaPF <br /> Soil <br /> subsurface hydrogeologic conditions and for possible chemical analysis. <br /> ed in the field using an OVvolume that detects VOC emissions <br /> were survey arts per million by <br /> samples <br /> from the soil and has a detection limTeSented in Table I. <br /> (ppmv). Results of this survey are p <br /> were collected from boreholes B-1 through B-9 <br /> three soil samples 8-2. <br /> wenty- each from boreholes B-1, <br /> analysis- One sample GC FID No soil <br /> for possible laboratory Y <br /> B-3. B-4. B-6, B.7 and B-B was analyzed for TFHC and BTX by were unable <br /> sample was collected for laboratory analysis from B-5 because we <br /> penetrate beneath the trench backfill material Round in the top S ftbecaulse <br /> to pe from boring B-9 <br /> NO soil sample was collected for analysis G 5 ft. Soil samples were <br /> borehole. depth of <br /> of a buried - utility 1ine.._encountered at...a - <br /> selected for analysis based on two criteria: <br />