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F <br /> ti 2 <br /> work Plan for Addkional Soil confirmation:Sampling 11 i <br /> A-1-1 11 1995 <br /> The Southiand Corporation 9110 Thorntofti Road Stockton CA !l <br /> TASK 2: SOIL BORINGS/SOIL SAMPLING <br /> Groundwater Technology will drill eight soil borings at the locations shown on Figure 2 using a <br /> truck-mounted drill rig equipped with 8-inchAiameter hollow-stem augers. The borings MI be drilled to <br /> approximately 45 feet below ground surface (BGS). <br /> .f <br /> Soil samples will be collected from each soil boring at 5-foot intervals beginning at 5 feet SGS using a <br /> split-spoon sampler lined with 2-inch-diameter by 6-inch-long brass sample tubes. The hollow-stem <br /> augers will be steam cleaned before drilling, and sampling equipment will be cleaned between each <br /> sampling interval. Each soil sample will be'screened for hydrocarbon vapors using a photoionization <br /> detector (PID). Soils encountered during drilling will be logged using the Unified Soil Classification <br /> System by a Groundwater Technology field geologist,working under the supervision of a California <br /> registered geologist. One sample tube from eacWsampling interval will be sealed with aluminum foil, <br /> capped,taped, labeled,and placed on ice in an insulated container. Based on field observations, <br /> selected soil samples from each borehole will be analyzed by a State-certified analytical laboratory for <br /> benzene,tdluene, ethylbenzene and xylenes (BTEX),and total petroleum hydrocarbons-as-gasoline <br /> (TPH-G) by EPA methods 8020/8015 modified. A minimum of two soil samples from each boring will <br /> be analyzed. <br /> All soil generated through drilling will be placed on and covered with plastic sheeting on site pending <br /> characterization and disposal. Water generated by steam cleaning will be contained in a steam-clean <br /> trailer and temporarily stored on site in Department of Transportation (DOT)-approved 55-gallon <br /> c <br /> drums. <br /> TASK�.3: REPORT PREPARATION, <br /> 1� <br /> Groundwater Technology will prepare a report summarizing the data collected under the scope of work <br /> detailed above. The report will document the methods and results of the work,summarize laboratory <br /> analytical results, and include appropriate maps. AThis report will also include analytical results of <br /> groundwater samples which will be collected from domestic wells. <br /> lF <br /> i <br /> F� <br /> i <br /> tI <br /> .i <br /> GONPBOR2.wKP' <br /> E <br /> J�_IGROUNDWATER <br /> ��' li 'TECHNOLOGY <br />