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110 2nd Avenue South,4D7, Pacheco,CA 94553-5560 <br />' McCA VBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> h //www mccam bell cam E-mail main@mccampbell com <br /> • <br />' Advanced GeoEnvironmental Client Protect ID Cherokee Truck Stop Date Sampled 09127-09129199 <br /> 4005 North Wilson Way Date Received 10/41/99 <br /> tStockton, CA 95205 Client Contact Kevin McKibben Date Extracted 10/01/99 <br />' Client P O Date Analyzed 10/01-10/08/99 <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 />' 22522 B 18-5 S 43,a 100 <br /> 22523 B 18-20 S 21,a 100 <br />' 22524 B18-30 S ND 99 <br /> 22525 B 18-40 S ND 99 <br />' 22526 B18-60 S ND 103 <br /> 22527 B19-15 S 4 7,a 100 <br />' • 22528 B19-25 S 4 4,a 102 <br /> 22529 B 19-35 S ND 106 <br /> r22530 B20-5 S 6 O,a 105 <br /> 22531 B20-10 S 130,g,b 104 <br /> 22532 B20-20 S 4 7,a 99 <br /> 22533 B20-30 S I5,a 99 <br /> 22534 B21-10 S 660,g,b 97 <br />' 22535 B21-20 S 2 4,g 116 <br /> Reporting Lima unless otherwise W 50 ug/L <br /> stated,ISD 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 /> Iextracts 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 ongmal extract <br /> 'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> mterpretanon 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 panern 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, 1) liquid <br /> sample that contains greater than—5 vol %sediment <br /> � r <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />