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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 14 h <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-]620 Fax 925-798-1622 <br />' hrtp//www mccampbell com E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Project ID Cherokee Truck Stop Date Sampled 09/27-09/29/99 <br /> 4005 North Wilson Way Date Received 10/01/99 <br />' Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 10/01/99 <br />' Client P O Date Analyzed 10/01-10/05/99 <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 /> 22536 821-25 S ND 99 <br />' 22537 B22-15 S ND 103 <br />' 22538 B22-25 S ND 118 <br /> 22539 B22-35 S ND 110 <br />' 22540 B22-40 S ND 99 <br /> 22541 B23-10 S ND 104 <br /> 22542 B23-25 S ND 98 <br /> 22543 B24-15 S ND 98 <br />' 22544 B24-25 S 5 O,a 98 <br /> 22545 B25-20 S ND 98 <br /> 22546 B25-30 S ND 107 <br /> 22547 B26-5 S 4 4,a 107 <br /> 22548 B26-20 S 4],a 110 <br /> 22549 826-30 S ND 113 <br /> Reporting Limit unless otherwise W 50 ug/L <br /> stated,ND means not detected above <br /> the reporting 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 /> 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 /> 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's 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 i) liquid <br /> Isample that contains greater than--5 vol %sediment <br /> DHS Certification No 1644 QA ll Edward Hamilton, Lab Director <br />