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10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 4 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> _//www mccampbell cam E-mail main®mccampbell corn <br /> Advanced GcoEnvironmental Client Project ID Rainwater Car Wash Date Sampled 01/22/02 <br /> 837 Shaw Road Date Received 01/23/02 <br /> 1 Stockton,CA 95215 Client Contact Tins Cuellar Date Extracted 01/25/02 <br /> Client P 0 Date Analyzed 01/25/02 <br /> Gasoline Range(C&C12) Volatile Hydrocarbons as Gasolme*,vath Methyl tert-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 ar 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> ' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 88726 Influent W 26,000,a 23,000 2000 3500 610 2500 1I8 <br /> ' 88727 Effluent W ND ND ND ND ND ND 105 <br /> 88728 GAC-2 W ND ND ND ND ND ND 115 <br /> Reportrrig Limit unless - � -— _ <br /> W 50 ug/L 50 0S 05 05 05 <br /> otherwise stated,ND <br /> ' means not detected above <br /> the reporting limitm�g S 1 0 005 ;0 005 0 005 0 005 – 0 005 <br /> •water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> ' <br /> in ug/L <br /> I cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory to nature and lvlcCampbell Analytical is not responsible for their <br /> Interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline'7), c) lighter gasoline range compounds (the most mobile fraction) arc significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline's,e)TP14 pattern that does not appear to be derived from gasoline(?),0 <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water inumscibie <br /> sheen is present,t)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattem <br /> a <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />