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110 Second Avenue South,#D7, Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbelI co.m E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Cheiokee Truck Stop Date Sampled 12/23/98 <br /> 4005 North Wilson Way Date Received 12/24/98 <br /> Stockton, CA 95205 Client Contact Ke\in McKibben Date Extracted 12/27/98 <br /> Client P O Date Analyzed 12/27/98 <br /> Gasoline Range(C&C12) Volatile Hydrocarbons as Gasohne*, Aith Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602,California RWQCH(SF Bay Region)method CiCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)' MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 12-23-998 <br /> 00876 UST- W ND ND 1\D ND ND ND 110 <br /> 00877 UST-3/12-23-98 W ND N D 1 7 8 7 1 2 6 8 104 <br /> 00878 UST-4/ W ND )\D 0 83 5 7 1 t) 4 5 107 <br /> 12-23-98 <br /> 00879 12 T-5/ W 420,a ND<10 23 74 2 1 7 7 -- <br /> Reporting Limit unless W 50 ug/L 5 0 03 0 5 05 05 <br /> othemige stated ND <br /> means not detected above <br /> the reporting limitS 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> *nater and,,apoi samples are reported in ug/L,wipe samples in ug/n ipe soil and sludge samples in mgll,g and all TCLP and SPLP extracts <br /> in ug/L <br /> cluttered chiomatogram,sample peak coelutes with surrogate peals <br /> 'The iollowrng descriptions of the TPH chromalogram are cursor in nature and McCamphell Anal\hcal is not responsible for their <br /> interpretation a) unmodified or ,,ealdymodified gasoline is signsfcarn b) heavier gasoline range compounds are sJgnifican,(ag"d <br /> gasoline'), c) lighter gasoline range compounds (the most mobile traction) are significant d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline' e)TPH pattern that does not appear to be derived from gasoline(') f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or dtC;Ll range compounds ace �tgntftcaiit, h) lighter than water immiscible <br /> sheen is present,1)liquid sample that contains greater than—5%of "b sedimenl,j)no recognizable pattern <br /> DHS Certification No 1644 /f� Edwaid Hamilton, Lab Director <br />