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110 2nd Avenue South,#D7,Pacheco, CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell com E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Manteca City Yard Date Sampled 07/11/01 <br /> 837 Shaw Road Date Received 07/12/01 <br /> Stockton, CA 95215 Client Contact Brian Millman Date Extracted 07/12/01 <br />' Client P O Date Analyzed 07/13-07/17/01 <br /> Diesel Range(CIO-C23)Extractable Hydrocarbons as Diesel <br /> EPA methods modified 1015,and 3550 or 3510,California RWQCS(SF Bay Region)method GCFID{3550)or GCFID(3510) <br />' Lab ID Client ID Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 72274 MW1/071101 W ND 91 <br /> 72275 MW2/071101 W ND 98 <br /> 72276 MW3/071101 W ND 102 <br /> 72277 MW4/071101 W ND 97 <br /> Reporting Limit unless otherwise W 50 ug/L <br /> stated,ND means not detected above <br /> the reporting limit S 10 mg/kg <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/STLC!SPLP <br /> extracts in ug/L <br /> "cluttered chromatogram resulting in coeluted surrogate and sample peaks or;surrogate peak is on elevated baseline,or,surrogate has been <br /> diminished by dilution of original extract <br /> I `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 diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c) <br /> aged diesei?is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel(?), f) <br /> one to a few isolated peaks present, g) oil range compounds are significant, h) lighter than water immiscible sheen is present, i) liquid <br /> sample that contains greater than—5 vol %sediment. <br /> DHS Certification No 1644 J�_Edward Hamilton,Lab Director <br /> I <br />