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McCAMPBELL ANALYTICAL INCJ 1102nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br />' Geological Audit Services Client Project ID Geweke Date Sampled 10/17/94 <br /> 1803 West March Lane,Ste A Date Received 10/17/94 <br />' Stockton,CA 95207 Client Contact Bob Marty Date Eairacted 10118-10/19/94 <br /> �C_hen_tp O Date Analyzed 10/18-10/19/94 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030,modified 8013 and 8020 or 602 California RW CB SF Ba Re oo method GCFID 5030 <br /> i <br /> LabD Client ID Matrix TPH(g)+ Benzene Toluene Et 33neen- Xylenes Sur o�eCte <br /> 1 <br /> 41647 EW-1/ 10-17-94 W 1700,b,d 16 96 92 41 92 <br />' 41648 MW-14110-17-94 W 1600,a 28 110 14 180 10 <br /> 41649 MW-12/10-17-94 W ND,d ND 086 ND 10 101 j <br /> I � <br /> i <br /> Detection Lumt unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means Not <br /> Detected S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> *water samples are reported in ug/L,soil samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram,sample peak co-elutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation a))unmodified or weakly modified gasoline is siccant,b) heavier soline <br /> range compounds are significant(aged gasohne?),c)h ter gasolme range compounds(the most mobile fraction) <br /> are significant d)gasoline range compounds are sicant,no recognizable pattern e) TPH pattern that does <br /> not appear to be derived from gasolme �?) f) one o a few isolated peaks present,g) strongly aged gasohne or <br /> diesel range compounds are significant, ) fighter than water unmisciible phase is present <br /> DHS Certification No 1644 /rte Edward Hamilton,Lab Director <br />