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/r <br /> rti _ <br /> PllaBe D D C-In nlOI UM Q <br /> Mcrelaad Court SdelI <br /> 7700 Moreland CmM Stcckwn,californla <br /> ►, Della Project Nu./104M146 <br /> ! Page 9 <br /> 1 <br /> r <br /> - S.d4ETFlaDS ND PROCEDUR <br /> I 3.1 Barb Advanl?etrlo'nf and ail Sam lin <br /> r <br /> TWO soil borings were drilled at the site on August 8, 1989. Theseborings were drilled using a CME-55 <br /> drilling rig and 10-inch-diameter hollow-stem augers. The soil borings were drilled to depths of 26.5 and <br /> # E 31.5 feet below ground surface. Samples of subsurface soil;:were obtained using a California-modified <br /> Wit-spoon sampler. Soil samples were collected and examined from each of the soil barings. <br /> Represertative soil samples were collected in reclosable plastic bags. Headspace gas measurements of <br /> total organic vapors were made with an hNu PID. The readings frcm the hNu mete- <br /> , -, a � lm gs tare recorded on the <br /> soil boring logs presented in appendix A i <br /> ,Pall drilling and sampling p 1 <br /> j p g equi ment was cleaned before drilling.each boring using a high-pressure, <br /> steA m-cleaning apparatus. The split-spoon sampler was cleaned with phosphate-free soap and rinsed with <br /> water following each sample collection. <br /> .2 Boll Class Ocatlan <br /> All soil Samples were examined in the field a eo.o ' t and descn'bed for color, <br /> p b}' g � S'sgrain size,raoistnre <br /> content, odor,and were classified in accordance with the Unified Soil Classification System (dJSCs). <br /> s. <br /> ' �` 5$ �routln of Soil Bn n s <br /> t' <br /> Upon completion of drilling activities,each soil boring was grouted from the bottom of the borehole to <br /> ground surface with a cemen0entonite grout which was tremied into each borehole. <br /> } <br /> r <br /> ---- -----_ -- <br />