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!'1�Gfrtil+,r�tY.Illf!?,[l��rk.lin�,n��ES�.e?.'�.li�?1�I�t'1L.w CH 3Lt`IAIY <br /> 14400 W.rVnl►j•tlar,f,Monlrca,CtitfRrnla <br /> Poll*Vfnl.el NO 40.44.470 <br /> �.�a![.SaEnalc.S.'a.i�ticllszdt.attld..�'ctss�l nal <br /> A California moclificcl spot-t,.ittrl sams7ler kis! be usrd totxtract soil samples fron7 the sail 4tirinn, <br /> Three six-Inch.long brass tubes will be inlet led Into the California sampler to retain the soil safltplc. <br /> Upon retrieval,one brats lut=e mill be capped,pickaged; and preserved according to accepted EPA <br /> procedures for possible chemical analysis. One saulple front each sampler will be extrsctcd and <br /> placed in a realed jar until colvptetion of drilling rclivities. <br /> Samples placed in jars will lie brought to room temperature and the head space of each jar will be <br /> sc±eened for total organic vapors utilising n portable yhotoloniralion detector. Appendix C.Section <br /> 1.3, describes the detailed soil-screening procedures. (lased on this screening information, soil <br /> simples will he selected for chemical analyses la determine the vertical extent of the presence of <br /> Petroleum eonitiluents in the soil, <br /> �.1 t�4anl�y t;;'�Llnstatletip.� <br /> The proposed monitoring well specifications are illustrated on f=igure 3. The well will tic constructed <br /> of two-inch-diameter, Schedule 40 (flush-threaded) FVC blank casing and two-inch-diameter, <br /> Schedule 40 well screens with 0,010-inch slots. The screened interval of each monitoring well will <br /> extend to appraximsttly 15 feel below and five feet above the water table. Actual screened intervals <br /> and well depths will be determined in the field by a pelta xcologist or engineer. <br /> jj cbtm cjl Ana(.t1L4 <br /> 4.4,1 &+11 Chenslsnl Analysis <br /> Rased on the resalts of soil-sample xreening,soil samples will be selected from each soil baring and <br /> sent to a Slate-certified labnratwy for chemical analysis. Tire soil samples will be analvred for <br /> BTEX, EVU, EDC.and T1'11 using EPA ,Method 524.2!8240. <br /> Than analyses should indicate whether petrole::m eoratituents rare present and will aid in <br /> characterization of the typt of any petroleum present(gasoline of diesel fuel). <br />