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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 /> / llcorn E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Cherokee Truck Stop <br /> Date Sampled 03/16/99 <br /> 4005 North Wilson Way Date Received 03/17/99 <br /> Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 03/18/99 <br /> Client P O Date Analyzed 03/19-03/21/99 <br /> Diesel Range(CIO-C23)Extractable Hydrocarbons as Diesel <br /> EPA methods modified 8015,and 3550 or 3510,California RWQCB(SF Bay Region)method GCFID(3550)or GCFID(3510) <br /> + %Recovery <br /> Lab ID Client ID Matrix } Surrogate <br /> 05249 USTI/3-16-99 W 520,c,d 101 <br /> 05250 UST2/3-16-99 W 170,d,b 99 <br /> 05251 UST3/3-16-99 W 82,b,d 100 <br /> 05252 UST4/3-16-99 W 160,d,b 100 <br /> 05253 UST5B/3-16-99 W 180,d,b 100 <br /> 05254 Large Well/3-16-99 W ND 101 <br /> 05255 Small Well/3-16-99 W ND 100 <br /> Reporting Limit unless otherwise stated, W 50 ug/L <br /> ND means not detected above the reporting <br /> limit S 1 0 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 /> M 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 /> dirnrmshed by dilution of original extract <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 diesel is significant,b)diesel range compounds are significant,no recognizable pattern,c) <br /> aged diesel')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 //—Edward Hamilton,Lab Director <br />