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110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> htM://www.moAmpbdLom E-mail main@mccampbell cam <br /> Advanced GeoEnvironinental Client Protect ID Cherokee Truck Stop Date Sampled 09/11/98 <br /> 4005 North Wilson Way Date Received 09/15/98 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 09/15/98 <br /> Client P O Date Analyzed 09/15/98 <br /> Diesel Range(C10-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 /> Lab ID Client ID Matrix TPH(d)+ %Recovery <br /> Surrogate <br /> 95040 UST2/9-11-98 W ND 111 <br /> 95041 UST3/9-11-98 W ND 111 <br /> 95042 UST4/9-11-98 W ND 100 <br /> 95043 UST5/9-11-98 W 200,b 103 <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 1 SPLP <br /> extracts in ug/i. <br /> "cluttered chromatogram resulting in coeluted surrogate and sarriple peaks,or,surrogate peak is an elevated baseline,or,surrogate has been <br /> diminished 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 dreseh is significant),d)gasoline range compounds are significant,e)medium boiling point pattern that does not match diesel (1),f) <br /> one to a few isolated peaks present, g)oil range compounds are significant, h)lighter than water immiscible sheen is present, t) liquid <br /> sample that contains greater than—5 vol %sedrmrnt. <br /> Edward Hamilton,Lab Director <br /> DHS Certification No 1644 <br />