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tYl Nl '�.1 t4. Wii..� ,al��:? li llt 6�:lq'.l,i't l� tI'rl: prc,batllt+ pl1ct?m�ln Of monitor <br /> wells; within varh of t1105i y bori not; uurr 4l . <br /> Western Gec,�-Engineers wi11 use Vic-gate Drilling to piarf-arm the <br /> necessary drilling and sampling. The drill rig is a Mobil Drill <br /> which will use 10-inch h,,11c.w stem auners:s. Procedure will be as <br /> follows: <br /> I. Advance augered borings to a depth of fifter n feFt. <br /> 2. Pull inner plug-bit--rod assembly <br /> i <br /> 3. Attach ,tem-cleaned California Split Spoon Sampipr with y <br /> four 2-inch-by-6-inch clean brass rorJ liner inserts t_ <br /> inner rod <br /> 4. Lower sampler through the antler to the base of the <br /> angered hole. <br /> Using a 130-lb. Hammer, drive sampler IS inches into <br /> I relatively ijndistiarbcd soil to c,bt.ain representative <br /> sc,i.l samples. <br /> b, retrieve sampler <br /> t �y 7. Field-Screen sleeved soil samples using a hand-held <br /> photoi,Anizing detector (PID} calibrated to 54 ppm <br /> gasoline vapor <br /> 9. Upon determination of sleeve containing =oil which <br /> ey;hibits the highest pi_sitive response from thr+ PrD, <br /> 3 that same sleeve will be preserved (frozen, usi;g ci+'y <br /> ice), labeled and chain-of custody hand-del i.vi.:,-. " to a <br /> State of California Certified Laboratory for an,Okt:ais <br /> 1_tsin9 EPA Methods to detern, .n� Total Petroleum <br /> 'lydrocarbons, Aromatic Volatile Organics, Total Lead and <br /> i Ethylene Dibromide. <br /> S. Analyte remaining sleeved samples for sieve, color, <br /> lithologY, odor and structure. <br /> 10. Perform additional tests to determine degree of <br /> plasticity, dilatancy, cementation and reaction to HCL. <br /> A, "f ied Soil <br /> all soils according tc the "Ur,� <br /> it <br /> Describe _ <br /> Classification System", j <br /> 12. Advance and sample boring in five-foot intervals until <br /> a depth of approximately 15' below ground water ie, - - <br /> 4 <br /> reached. <br /> Page <br /> i <br />