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I 10 Second Avenue South,#137,Pacheco,CA 94553 <br /> McCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 - <br /> httn/ coni E-mcc ml2bgll coE-mail mato ce mccampbell com ; c <br /> j Date Sampled 03/31/98 <br /> Advanced GeoEnvironmental Client Project ID Chapin Bros <br /> 4005 North Wilson Way I Date Received 04/01/98 <br /> Stockton,CA 95205 Client Contact Bill Little } Date Extracted 04103-04107198 <br /> Client P 0 Date Analyzed 04103-04107198 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,v.ith Meth,.I tert-Buhl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bav Region)method G(FID(,)030) <br /> Ethylben- %Recovery <br /> Lab ID Client ID Matrix TPIA(g) MTBE Benzene Toluene zone Xylenes Surrogate <br /> 87641 M W l W 1100,bj -- 2 0 16 20 110 102 <br /> 1 87642 MW2 W ND -- ND ND ND ND =104 <br /> 87643 MW3 W 6300,a,) --- 140 7 3 260 270 99 <br /> 87644 M W4 W 43,000,a --- 5100 7000 1300 6340 103 <br /> 87645 MW5 W 120,fj ND ND ND 065 100 <br /> 87646 MW6 W ND --- ND ND ND ND 100 <br /> 87647 Pre Cat Ox Air 1000,1 ND 1 8 12 13 101 <br /> Reporting Limit unless Air 50 uglL 1 5 0 15 it 15 0 Is 025 <br /> othherntse stated ND <br /> means not detected above W 50 uglL 5 0 0 5 {I 5 0 5 05 <br /> 1 the reporting limit <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/�N rpe soil and,lud,e samphs rn ITILA9 and all TCLP and SPLP extracts <br /> m ug1L <br /> F <br /> cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the T H chromatogram are cursory in nalUm and M((amphell AnaMIL111 is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is srgniiicant b) hca�ret soi,m r inge compounds are significant(aged <br /> gasohneq) c) lighter gasoline range compounds (the most mobile lractioi)) are srenrhcant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline" e)TPH patlt.m that does not appear to be derived from gasoline(") i} <br /> one to a few isolated peaks present,g)strongly aged gasoline or dsesel range compounds arc stgnitscant h)lighter than water immiscible <br /> sheen is present i)liquid sample that contains greater than--5%ol '%sediment 1)no recoenizahle pattcm <br /> s . / <br /> DHS Certification No 1644 Z-Y Edward Hamilton,Lab Director <br />