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110 2nd Avenue South,##D7,Pacheco,CA 94553-5560 <br /> ' McCAMPBELL ANALYTICAL, INC Telephone 925-798-I620 Fax 925-798-1622 <br /> ft//www mccam bell c m E-mail main@mccampbell com <br /> ' F40O5 <br /> d GeoEnvironmental Client Project ID 3 B's Truck Plaza Date Sampled 0I/11/01 <br /> rth Wilson Way Date Received 01/12/01 <br /> tocton, CA 95205 Client Contact Tun Cuellar Date Extracted 01/12/01 <br /> ' Client P O Date Analyzed 01/12/01 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method C,CFID(5030) <br /> ' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> benzene Surrogate <br /> 57680 P-11/41-44 W 280,a --- 03 25 28 24 119 <br />' 57681 P-11/57-60 W ND --- 24 077 082 38 104 <br /> 57682 P-11/72-75 W ND --- ND ND ND ND 103 <br />' 57683 P-11/92-95 W 270,a,i --- 37 42 62 29 103 <br /> 57684 P-11/117- W 1800,a <br /> 120 -'- 140 10 14 110 101 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 0 5 0 <br /> otherwise stated,ND 5 0 5 05 <br /> means not detected above <br />' the reporting limit S 1 0 mg/kg 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 /> in ug/L <br /> "cluttered chromatogram,sample peak coalutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell 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 /> gasoline9), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> . one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> I <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />