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I <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 yip//www mccampbell corn E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Project 1D Cherokee Truck Stop Date Sampled 09127-09/29/99 <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 10/0 1-10105199 <br /> Diesel Range(C10-C23)Extractable Hydrocarbons as Diesel <br /> EPA methods modified 8015,and 3550 or 3510,Cahfornta RWQCB(SF Bay Region)method GCFID(3550)or GCF1D(3510) <br /> I Lab ID Client ID Matrix TPH(d)- %Recovery <br /> Surrogate <br /> I 22550 B26-60 S ND 109 <br /> 22551 B27-15 S ND 99 <br /> 22552 B27-25 S ND 108 <br /> 22553 B27-30 S ND 108 <br /> 22554 B27-40 S ND 109 <br /> 22555 B27-50 S ND 110 <br /> • 22556 B27-60 S ND 107 <br /> 22557 B28-20 S ND 108 <br /> I22558 B28-30 S ND 107 <br /> 22559 B29-20 S ND 109 <br /> 22560 B29-30 S ND 113 <br /> I <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 /> e>ltracts 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 /> dimmished by dilution of ongmal 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 dieser is significant),d)gasoline range compounds are significant e)medium boiling point pattern that does not match diesel (9),t) <br /> one to a few isolated peaks present, g) oil range compounds are significant, h) lighter than water immiscible sheen is present, 1) liquid <br /> sample that contains greater than—5 vo3 %sediment <br /> DHS Certification No 1644 AEdward Hamilton, Lab Director <br /> I <br />